Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/7/2022
Earth’s Energy Balance and Thermodynamic Properties
By: Walter Fiori, Correction page 17
Revised: 16 July, 2022. (Revisions to sections 4.3 and 4.3.3 of original article: Earth’s
Energy Balance, Heat Sources, Global Warming and Thermodynamic Properties of 8/7/2022)
Revised: 6 March, 2023. (Revision to pages 15 and 16 section 4.3.3.)
Abstract
This article theorises that the earth is an entity in the solar system that has properties that
promotes life supported by the level of warmth from two (2) principle sources of heat:
1. The sun – that, together with the earth’s biospheric properties, elevates the earth’s
status above a black body and supplies the warmth that maintains the conditions for
life.
2. The earth’s mantle and core supplying heat in a volume that is continuous but subject
to variability dependent on the thickness of the earth’s crust, extent of fissures in seafloor ridges, the movement of the continental and oceanic plates and subduction (or
obduction) events.
The interactivity of the heat released from the two (2) sources is considered in terms of the
Laws of Thermodynamics and the Conservation of matter and Energy as, together, they have
an effect on the earth which initiates a reconsideration of the current concept of the Earth’s
Energy Balance and causes of global warming.
Contents
Abstract .................................................................................................................................. 1
4.1 - Introduction .................................................................................................................... 2
4.2 – The Earth’s heat sources and heat capture mechanisms ............................................... 4
4.2.1 - Insolation ................................................................................................................. 4
4.2.2 - Ocean currents ......................................................................................................... 6
4.2.3 – Geothermal heat ...................................................................................................... 6
4.2.4 - The atmosphere ....................................................................................................... 7
4.2.5 - The epipelagic zone and the thermocline ................................................................ 8
4.3 – Earth Energy Imbalance (EEI) .................................................................................... 11
4.3.1 – Sources of heat energy that impact EEI................................................................ 12
4.3.2 – Glaciation and heat energy absorption ................................................................. 13
4.3.3 - Energy sources that impacted the earth in 2019 .................................................... 14
4.3.4 - Release of geothermal heat into the ocean ............................................................ 15
4.3.5 – The atomic age...................................................................................................... 17
4.3.6 – Ocean heat accumulation ...................................................................................... 19
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4.3.7 - Instantaneous evacuation of heat from the biosphere. .......................................... 20
4.4 – The earth’s energy management systems .................................................................... 20
4.4.3 – Heat gains and losses caused by the day/night cycle............................................ 26
4.4.4 – Earth’s input/output energy – sources and drains ................................................. 27
4.4.5 - The geothermal heat escape route ......................................................................... 31
4.4.6 - Heat dissipation from the Polar Ocean .................................................................. 31
4.4.7 - The Polar Regions’ hydrologic cycle .................................................................... 33
4.5 –The Earth Energy System (EES) .................................................................................. 34
4.5.1 – The five (5) biospheric components of the EES ................................................... 36
4.5.2 – Differences between the EEB and the EES models ............................................. 37
4.6 –Tectonic events that increased the earth’s AGT........................................................... 38
4.6.1 – Earth’s dynamics .................................................................................................. 38
4.6.2 - The South American Altoplano uplift event ......................................................... 38
4.6.3 – Temperature changes of the Arctic Ocean ........................................................... 42
4.6.4 – Other events of collision and uplift ...................................................................... 43
References ............................................................................................................................ 44
4.1 - Introduction
The principle sources of heat, the sun and the earth, are accompanied by other sources of heat
that associate with life, irregular natural events such as volcanic convulsions and forest fires
and the energy released from potential energy sources by human (anthropogenic) activities.
In addition to the injection of heat into the earth system there are systems in place that
transfer heat from one point to another such as:
Ocean currents that deliver water warmed at the equator to the colder Polar Regions.
Ocean currents that transport warmed water east to west about the equator.
Convection of the earth’s heat into the atmosphere and into space.
Wind and water systems that transport clouds, water vapour and heat about the earth.
The hydrologic cycle that harvests heat in the atmosphere and land and returns it to
the oceans.
These variable component are of considerable importance in particular as to how they apply
uniquely to continental plates, open oceans at latitudes below the Polar Regions and at the
land and oceans of the Polar Regions.
The most important of the Polar Regions’ particular properties is that they don’t have a 24
hour day/night cycle. Instead, because of the earth’s axial tilt, they have long periods of
daylight followed by long periods of night. The absence of an alternating 24 hour day/night
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cycle, together with their high latitude, creates a situation that is particular to the Polar
Regions. They receive little life giving warmth from the sun and it leads to the possibility of
them becoming ice bound during spells of reduced levels of insolation i.e. ice ages.
The process that leads to ice age conditions begins with a deep cooling trend. Consequences
of the cooling trend alter the environmental conditions of the Polar Regions that progress to
land based glaciation and sea ice extent in a particular sequence.
The South Pole is the first Polar Region to be affected during a cooling trend. The cooling
trend progressively cools the surface of the sea and turns surface water to ice in the winter.
The ice melts in the summer. This continues until the cold reaches an intensity that creates a
permanent sea ice cover that persists year round. The area of the permanent sea ice cover
increases the lower the average global temperature is taken to.
The same process occurs in the Northern Polar Region as well if the cooling trend continues
to lower the average global temperature. When this occurs the temperature of the northern
oceans is taken to the point where their surface begin to turn to ice and the process continues
as per the South Polar Region until the cooling trend ceases.
Note that at a time of an extensive ice age, as occurred in the Pleistocene following the
cooling path that began a few million years leading up to the Pleistocene, the extent of sea
ice cover is also subjected to the earth’s dynamic circumstances related to the Milankovitch
cycles.
Glacial ice accumulates on land as the cooling trend progresses and the cold conditions of the
ice age deepen.
The oceans at the equatorial regions increase in their warmth when a warming trend begins.
Ocean currents take the warm water to the Polar Regions. The heat in the water current
merges with heat released by geothermal activity. The heat dissipates into the cooler Polar
Ocean water warming it. The sea ice begins to melt. The continual flow of warm water and
geothermal heat eventually warms the Polar Region’s ocean water sufficiently to melt all the
sea ice and halts any further sea ice from forming. The glacial ice on land begins to melt as
ambient temperatures and evaporation from the warming ocean increases.
In time the continual flow of heat energy into the Polar Regions changes their climate status.
Warm temperate climate conditions are reached if conditions drive the peak average global
temperature to become high enough. This process follows the energy inputs into the earth’s
biosphere, from various sources, which determine the average global temperature and the
potential for climate change.
Energy inputs and outputs that have an effect on the earth’s temperature and climate
conditions identify the earth as part of the open system of the universe and subject to
universal physical laws. The earth stands apart from a “black body” because of its content
and state of fluids; the atmosphere and the water that are bound to the solid mass by gravity.
The state of the fluids allow the creation of two distinct life supporting layers; the biosphere
and the hydrosphere.
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The sources of heat energy the earth is subjected to regulate the environmental conditions that
exist in the two life supporting layers of the earth in accordance to the laws of
Thermodynamics and the Conservation of Matter and Energy. Each of the layers has a
reserve of energy that maintains the environmental conditions of the respective layer. The
earth adds or subtracts energy in its reserves from all its energy sources depending on
whether the 150MY Solar Cycle trend is taking it either on a cooling or warming path.
Global warming, climate change and the alterations to the earth’s habitats are all subject to
sources of energy that abide strictly to the Laws of Thermodynamics. They apply particularly
to an earth structure that can be viewed as an open system with variable layer apertures. The
methods in which the laws apply to the heat energy in the earth system persist as the energy
strives to reach equilibrium with the universe through entropy.
A simplicity in the concept of thermodynamics was found in the concluding remarks in the
Encyclopaedia Britannica’s article by G. W. F. Drake (R4.01) who wrote:
“The 20th-century English scientist C.P. Snow explained the first three laws of
thermodynamics, respectively, as:
1. You cannot win (i.e., one cannot get something for nothing, because of the
conservation of matter and energy).
2. You cannot break even (i.e., one cannot return to the same energy state, because
entropy, or disorder, always increases).
3. You cannot get out of the game (i.e., absolute zero is unattainable because no
perfectly pure substance exists).”
These explanations are observed throughout this discussion.
4.2 – The Earth’s heat sources and heat capture mechanisms
Several aspects of the earth’s properties have to be considered when investigating the sources
of heat that create the climate conditions and environments that exist around the earth.
The natural heat sources each have their impact on the land and oceans of the earth. They
drive the hydrologic cycle, the heat content of the oceans, the average global temperature and
the atmospheric transfer of heat energy to space.
4.2.1 - Insolation
The sun is earth’s primary source of heat. It provides a consistent amount of energy that
maintains life supporting conditions on the earth. It does this in conjunction with earth’s
primary properties of atmosphere, water and land. There are two (2) components of the
earth’s properties that contribute to the variations in the irradiation as it makes its way to the
surface:
The thickness of the atmosphere it has to travel through.
Earth’s obliquity.
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The earth’s obliquity is particularly important. During the passage of an orbit of the sun the
earth’s obliquity changes the point of the earth that is on the plane of the ecliptic.
Only at equinox does the sun shine equally on the northern and southern hemispheres as it
oscillates between today’s 23.5° angle of obliquity. The equinox provides each hemisphere
with identical day/night timing and a level of irradiation that only differs by the small change
in distance between the sun and the earth between the autumnal and vernal equinoxes. As the
earth tilts about its angle of obliquity it alternately exposes the hemispheres to the direct
incidence of the sun’s irradiation. The action causing each hemisphere’s opposite change in
seasons.
The earth’s obliquity also has a considerable effect on the Polar Regions. The further up the
latitudes the less is the intensity of the insolation that reaches the surface of the earth.
Currently the Polar Regions begin at a latitude of 66.5°. The 66.5° latitude receives about
40% of the warmth of the sun’s irradiation at equinox, decreasing to 0% at 90° latitude. The
Polar Regions do not have a 24 hour day/night cycle of varying daylight and night-time hours
but long periods of night followed by long periods of day. The earth’s axial tilt amplifies the
Polar Regions’ lack of insolation during the winter season, when no insolation strikes the
surface, and magnifies it during the summer season when the sun shines constantly.
The reduction in insolation as latitudes climb from the equator to the Poles is in accordance to
the Lambert and Beer Law (R4.02). The law defines the way the two (2) following aspects of
the earth cause the sun’s irradiation to reduce:
1. The atmosphere absorbs and reflects the irradiation on its way to the surface in
accordance to the distance the irradiation has to travel to get to the surface.
2. The greater the angle of incidence at any one point on the earth formed by the angle
of obliquity and the plane of the ecliptic becomes, the greater is the depth of the
atmosphere the irradiation has to travel through to reach the earth’s surface.
Figure 4.1shows the way the irradiance intensity changes the further it has to travel to reach
the earth’s surface.
The indication of axial tilt on Figure 4
shows the times when the Polar Regions
are either subject to continuous day or
night conditions.
The conditions prevalent at the Polar
Regions work to both advance the earth
into a warm state during periods of global
warming and into a cold state, deeper
towards ice age conditions, during periods
of global cooling.
The heat transfer mechanisms driving the
local temperature of the Polar Regions are
continuously in operation.
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4.2.2 - Ocean currents
The hydrologic cycle that applies about the earth manifests itself as a regional energy capture
and inter-regional energy transfer mechanism. The equatorial regions receive considerably
more of the sun’s heat compared to the Polar Regions. Insolation that strikes the oceans’
surface penetrates into the water and warms it considerably more at the equatorial regions
than at the Polar Regions.
The heat differential between the Polar and the equatorial regions form massive ocean
currents that convey heat captured in the equatorial waters to the cooler Polar oceans. This
action benefits both the Polar Regions and land adjacent to the warm ocean currents.
The mechanism reduces the speed of advance of global warming while the earth is in the
grips of ice age conditions as part of the heat delivered is used to melt sea ice.
4.2.3 – Geothermal heat
The earth’s internally generated heat flux dissipates through the mantle into the earth’s crust,
ocean waters, and atmosphere and into space throughout the surface of the earth’s sphere in a
continuous process. It is the earth’s secondary heat source.
Note that insolation is the primary source of warming of the oceans’ surface and the
principle source of the epipelagic zone’s heat content, as discussed later.
According to the KamLAND Collaboration in their 2011 article; Partial radiogenic heat
model for Earth revealed by geoneutrino measurements (R4.03), the heat flux transmitted from
below the earth’s crust was determined to be 44.2+/- 1.0TW (or 1.395 x 1021 +/- 3.156 x 1017
joules p.a.).
The transmission of the heat energy from its source to the earth’s surface is measured and
referred to as the geothermal gradient
as shown in Figure 4.2. The gradient
temperature of the earth increases in
land, on average, by 25°C for each
kilometre below the surface
according to J.M.K.C. Donev et al.
(2019) in their article; Geothermal
gradient (R4.04) when measured from
the surface to the base of the
lithosphere.
The heat generated at the earth’s core
and in the mantle makes its way to
the surface creating an additional
heat source that applies to the surface of the earth. In the absence of any obstruction the heat
enters the atmosphere and makes its way to space. However, there are obstructions as
discussed later.
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4.2.4 - The atmosphere
NASA’s Earth Fact Sheet, 2021 (R4.05) describes the atmospheric composition (by volume, dry
air) to be:
78.08% Nitrogen
20.95% Oxygen
And by ppm:
o 9340 Argon
o 415
Carbon dioxide
o 18.18 Neon
o 5.24 Helium
o 1.7
Methane
o 1.14 Krypton
o 0.55 Hydrogen
Water content is highly variable and typically makes up about 1%.
Figure 4.3 shows that the density of the atmosphere thins the further it is from the earth and
forms into 5 distinct layers, each layer having
particular properties. They have a defined
termination boundary separating them. For
example, the Troposphere terminates at the
Tropopause and the Stratosphere terminates at the
Stratopause. The creation and function of the
boundaries are discussed in a later section of this
article.
The names and “thickness” of each layer are:
The Troposphere - The layer, 7 to 20km thick,
closest to the earth’s surface.
The Stratosphere – The layer that begins at the
boundary with the Troposphere and extends to
about 50km above the earth’s surface.
The Mesosphere – The layer that begins at the
boundary with the Stratosphere and extends to
about 85 to 90km above the earth’s surface.
The Thermosphere – The layer that begins at the
boundary with the Mesosphere and extends to
heights from about 500 to 1000km above the earth’s surface. Within the
Thermosphere there is a layer of ionised gases called the Ionosphere.
The Exosphere – The layer that begins at the boundary of the Thermosphere and
merges into space.
The Troposphere contains about 50% of the gases that make up the earth’s atmosphere and
nearly all the water vapour and dust that enters the atmosphere. Clouds form principally in
the Troposphere. Life is supported by the properties of the Troposphere in an area about the
surface of the earth defined as the biosphere.
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4.2.5 - The epipelagic zone and the thermocline
The oceans cover an area of 71% of the earth’s crust. Hence, based on the KamLAND data,
1.00 x 1021 joules of the earth’s internal heat flux is delivered to the ocean floor.
Note: The value of the emitted heat based on the KamLAND data is a guide. The determined
value of total annual emissions of the earth’s internal flux is discussed later.
The constant release of the earth’s emitted heat into the oceans is the reason why:
The temperature of the water at the oceans’ floor is in the range of near 1 to 4°C.
The water in the ocean depths is not a solid block of ice.
The temperature of the water below the thermocline varies little within the noted
range wherever it is measured, lowering the closer it is measured to the ocean floor.
The principle heat capturing and retention components of the oceans are the epipelagic layer
and the thermocline. The epipelagic layer can extend from sea-level to 200m below sea-level
(generally in the range 100 to 200m in the open ocean at mid-latitudes) and the thermocline
varies in depth from the base of the epipelagic layer to about 1000m below sea-level. This
phenomenon is described in chapter 6.2, Temperature, of the book by P. Webb; “Introduction
to Oceanography” (R4.06).
Both the epipelagic and the thermocline layers behave in accordance to the Laws of
Thermodynamics and in accordance to having four (4) sources of heat energy being injected
into them:
Two (2) directly into the epipelagic layer (insolation and heat captured by the
hydrologic cycle).
Two (2) into the thermocline (transfer of heat from the epipelagic layer and rising
geothermal heat).
The variation in the depth of the epipelagic zone and the thermocline is predominantly noted
in the seas at mid-latitudes that have an insolation variability based on the earth’s changing
angle of obliquity throughout the year.
The hydrologic cycle is one source of heat energy transfer into the epipelagic layer. The
hydrologic cycle gathers:
The sun’s heat energy absorbed by the atmosphere as the sun’s irradiation passes
through it.
The sun’s heat transferred into the land and the heat that is created on the earth’s
surface; a significant part of which is the heat released from the combustion of
potential energy sources by humans.
There are several natural events that create small quantities of heat that permeates into the
earth’s atmosphere and land, such as decomposition of plants and animals, forest fires and
random releases of the earth’s internal heat from surface volcanic activity.
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The temperature of the epipelagic layer is higher than the temperature of the thermocline. The
temperature differential prevents the thermocline from transferring its gathered geothermal
heat into the epipelagic layer until the epipelagic layer loses some of its heat and is able to
absorb the heat content of the thermocline; a situation particularly evident at tropical regions.
Figure 4.4 from P. Webb’s book shows the typical open ocean profile. The diagram indicates
the dimensions of the mixed layer (the epipelagic)
and the thermocline in a typical open ocean profile
where the surface water temperature is about 18°C.
The water temperature lowers the further it is
measured up the latitudes.
As the intensity of the insolation changes at any
particular latitude (and as earth transitions through
the seasons) so does the ability of the epipelagic
zone to maintain a constant heat content. The lesser
the intensity of the sun’s insolation the cooler the
epipelagic layer becomes. The epipelagic layer has
the greatest temperature variability. Its change in
temperature causes a change in the temperature of
the thermocline layer as more of the heat in the thermocline layer convects into the epipelagic
until equilibrium is reached. The cooler the epipelagic layer becomes, the thicker the
thermocline layer becomes as it absorbs heat from the layer below it. The thermocline is in
receipt of the geothermal heat that may or may not be transferred to the epipelagic layer
depending on each of the layers temperature.
Figure 4.5, also from P. Webb’s book, shows the typical open ocean summer/winter
thermocline layer thickness change.
As the seasons change the amount of energy that any
one point on the earth’s surface receives from the
sun changes. The sun delivers less heat into the
oceans during their respective winter period.
As the heat delivered to the epipelagic layer reduces
(and the temperature of the atmosphere reduces) heat
in the epipelagic layer is convected into the
atmosphere now colder than it (like it does at night
but with a higher draw-off of heat during the winter
period).
When the epipelagic layer cools it draws the heat
contained in the thermocline. The thermocline layer
still contains heat that is protected by the epipelagic
layer that is cooling from the top down and partly
replenished by the receipt of its daily dose of insolation. What changes is the temperature of
the barrier between the epipelagic and the thermocline layers and the rate of escape of the
heat from the thermocline into the epipelagic layer.
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The process, described in Figure 4.6, shows the contraction and expansion of the epipelagic
and thermocline layers in the open
ocean at mid-latitudes as the seasons
change from summer to winter.
The properties that influence the
changes are the intensity of the
insolation and the volumes of
evaporation and precipitation.
The geothermal heat rising to the
surface is considered to be at a
constant level in this example. The
amount of geothermal heat absorbed
by the thermocline depends on the temperature that the thermocline is taken down to.
The escape of geothermal heat rising to the ocean surface, and continuing into space, is
impacted by the thermodynamic forces that alter the heat content of the epipelagic layer.
The variable intensity of the insolation also alters the heat content of the epipelagic layer.
This action modifies the rate of escape of the heat from the thermocline into the epipelagic
layer. The greater the intensity of insolation the greater is the amount of heat captured by the
epipelagic layer and the depth that it reaches. The thermocline gains heat and rises in the
ocean waters pushed up by the cooler water below as the temperature between the two
increases.
A similar process occurs on land but the land does not have the heat retention properties of
the oceans’ waters and loses its heat very quickly once the strength of the insolation
diminishes on a change of season from summer to winter in a proportion equal to the amount
of ground water that is retained in the land.
In effect the epipelagic and the thermocline layers act as barriers to the rising geothermal
heat. They slow down the release of the heat to space. However, the epipelagic and the
thermocline layers are not perfect insulators; although their thermodynamic properties and
associations with heat sources induce entropy. The sources of heat, and that,
1. the thermocline is sandwiched between the colder water below it, and that
2. the epipelagic layer is the recipient of the higher intensity solar irradiation,
causes the changing heat content that controls the release of the geothermal heat to space.
The geothermal heat flow into the atmosphere and into space is shown from being a continual
process, as occurs at the Polar Regions, to a minimal flow as occurs in the Tropics. This
action explains why the rate of ocean heat capture is at the level that it has been measured
over the last decade.
The differences in the epipelagic and thermocline layers between the latitude conditions
noted on Figure 4.7 are also from P. Webb’s book.
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The insulating and heat capture and transfer
properties that the epipelagic and thermocline layers
exhibit ensures that the geothermal heat will maintain
the temperature of the water below them at a constant
level dependent on the amount of heat that is
delivered to the epipelagic layer by the sun and any
anthropogenic or natural activities that result in
emitted heat introduced into the natural system
additional to the sun’s irradiation or earth’s
geothermal heat.
Geothermal heat travels through the oceans and is
dissipated into space if the level of insolation
diminishes in a cooling trend. This will cause a
constriction of the epipelagic layer at lower latitudes
hence providing a greater area of the sea to respond
to the varying insolation in a manner that currently
applies at the Polar Regions.
4.3 – Earth Energy Imbalance (EEI)
In the 2021 article by N. G. Loeb et al, titled “Satellite and Ocean Data Reveal Marked
Increase in Earth’s Heating Rate” (R4.07), it states:
“Climate is determined by how much of the sun's energy the Earth absorbs and how much
energy Earth sheds through emission of thermal infrared radiation. Their sum determines
whether Earth heats up or cools down.”
The explanation for the rise in the heat content of the oceans is centred on the irradiation
received from the sun and various properties of the earth that manage the amount of the
irradiation that is emitted back to space. The control applied to the amount of heat retained by
the earth and absorbed by the oceans is based on the monitoring of the outgoing radiation
from the earth as measured by earth satellites, in particular the “Clouds and the Earth’s
Radiant Energy System’s (CERES)” data.
K. von Schuckmann et al described, in their 2020 article, Heat stored in the Earth system:
where does the energy go? (R4.08) that the Earth energy imbalance (EEI) was in the order of
0.87 W/m² (distributed per square metre) during the period 2010 to 2018, and only
increasing. The energy captured in the oceans in 2019 was measured by Cheng et al (R4.09a) at
2.28x1022 joule as reported by Cosmos Magazine’s N. Carne (R4.09b).
The cause of these findings has to be explained as the base data states that more energy is
dissipated by earth into space than is delivered by the sun and intercepted by the earth. This
represents the imbalance in the energy equation.
There are two ways the amount of energy dissipated by the earth can be less than the amount
of energy gathered from the sun. They are:
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1. That the earth is in a warming trend where the irradiation energy received is less than
the energy dissipated from the ocean heat store.
2. That the energy dissipated into space is the lesser portion of the total of the energy
received from the sun added to other sources of energy generated on the earth less any
energy that is consumed (e.g. applied in melting of the Polar ice).
The first option is likely as the earth has been on a warming trend for the last 2.1 million
years. The ocean heat content (OHC) has been increasing steadily since then.
Option 2 was also investigated for its potential to both increase the OHC by 2.28x1022 joules
of energy (in 2019), and for the earth to dissipate into space an amount of energy less than the
amount received from the sun while a residual amount of energy is advancing the rate of
global warming at the significant anomaly rate measured by several institutions.
The value of the energy imbalance is detailed in Table 4.1.
Table 4.1 – 2019 data on Incoming and Outgoing Irradiation
On the plane of
the ecliptic
Distributed per
square metre
Energy
Imbalance
Sun Incoming
Irradiation
1361.5 W/m²
Earth Outgoing
Irradiation
1357.9 W/m²
Difference
340.4 W/m²
339.5 W/m²
-0.9 W/m²
5.50x1024 Joules
Incoming
5.485x1024 Joules
Outgoing
-1.454x1022 Joules
Net Outgoing
-3.6 W/m²
The fact that the incoming energy is greater than the outgoing energy, and that the earth is in
a phase of warming at a rate that is unprecedented in earth’s geologic history states that the
earth energy system is subjected to other sources of energy, the magnitude of which has to be
determined. The difference in the energy imbalance of -1.454x1022 joules net outgoing,
considered in terms of the rate that global warming is advancing, identifies the sun as being
only one of the sources of heat energy that applies to the earth.
4.3.1 – Sources of heat energy that impact EEI
The earth has several sources of energy that contribute to the content of heat energy measured
in the biosphere’s oceans, land and atmosphere.
They include:
Irradiation from the sun.
Geothermal heat.
Anthropogenic heat energy generation activities e.g. combustion of fossil fuels,
nuclear fission reactions, exothermic chemical reactions such as munitions and
specific non-carbon based fuels for propulsion.
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Natural instances of combustion, e.g. forest fires, molecular conversions (e.g. methane
to carbon dioxide and water when combusted in the presence of oxygen e.g. possible
permafrost pits of methane burning in Siberia.
Deforestation and land clearing activities.
Surface volcanic and tectonic expulsions of mantle heat.
Sub-surface volcanic and tectonic expulsions of mantle heat.
Natural life uptake and releases of heat energy, e.g. photosynthesis, endothermy,
decomposition, and thermogenesis.
Cosmic events e.g. the heat energy generated by cosmic and man-made matter as it
travels to the earth’s surface through the atmosphere.
The biosphere also experiences:
The release of heat energy to space (outgoing SW and LW radiation):
The persistent outgoing radiation that is a function of incoming irradiation plus any
additional energy in excess of what the biosphere can accommodate.
The consumption of heat energy within the earth’s biosphere, in particular:
The heat energy consumed annually as sea ice and glacial ice deposits are melted.
The EEI quantifies the amount of energy that has to be added to the earth’s total incoming
and outgoing energy difference to balance the energy equation and result in the current
measured increase in global warming. The balancing of the equation is currently achieved by
determining a value of radiative forcing.
Also necessary to take into consideration when assessing the EEI is the consumption of the
sun’s insolation by the processes of life that utilise the sun’s energy to create life matter. This
aspect relates to the above categories:
“Natural instances of combustion”,
“Natural life releases of heat” and
“Anthropogenic activities” aspects of which represent human activities associated
with the use of stored energy that can be released by combustion and fission.
These three (3) categories represent the earth as an entity that has life properties that capture
the sun’s heat and recycles it at volumes in accordance to the total biomass at any one
instance in time. The amount of the sun’s energy held captive in living life matter is given
back on the death of that life by one of several evolved recycling processes. As such, the
energy gain/loss is a deviation from a state of energy equilibrium unless circumstances alter
environmental conditions that either create or deter the opportunity for growth.
4.3.2 – Glaciation and heat energy absorption
The current presence of glaciation is a controlling factor on the rate the earth is warming. The
ice absorbs part of the heat energy that would otherwise be shown in the value of the EEI that
needs to be balanced.
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The current rate of sea ice melt has been measured by the NASA Earth Science
Communications Team (R4.10) at 276 billion metric tons per annum in the Arctic and 152
billion metric tons per annum in the Antarctic.
The total of the Polar Regions sea ice melt requires 1.43x1020 joules of heat based on ice
needing 334 joules per gram to melt as per the article by Todd Helmenstine (R4.11).
4.3.3 - Energy sources that impacted the earth in 2019
The detailing of the individual components of the earth energy system discussed in this
section is concerned with the energy contributed by each of the energy sources in 2019.
It includes the ocean heat energy added to the oceans as measured by Cheng et al (R4.09a) and
the amount of heat energy emitted into space as determined by K. von Schuckmann (R4.08)
from the CERES data. Other energy contributions to the earth energy system were
determined from the sources with appended reference numbers.
Five (5) measured categories of heat energy sources were tabled and summed to determine
the total amount of known heat energy that affected the earth energy system in 2019. The
categories and their values are shown in Table 4.2
Table 4.2 – Calculating the Earth Energy Imbalance (EEI) in 2019
Sources of Earth Energy Gains and Losses
Incoming irradiation from the sun (R4.12)
Primary energy derived from potential energy sources (R4.13)
Determined Geothermal Energy – KamLAND group (R4.03)
Energy needed to melt sea ice in the Arctic and Antarctic (R4.11)
Additional ocean heat content as measured by Cheng et al. (R4.09a)
Total earth energy system gains during 2019 (1)
Earth energy system losses - outgoing radiation (2)
Difference between earth energy system gains and losses (3)
Joules
5.50x1024
5.73x1020
1.40x1021
1.43x1020
2.28x1022
5.53x1024
5.49x1024
1.04x1022
Table 4.2 shows that in 2019 the energy (3) required to balance the total earth energy is equal
to the sum of the total earth energy sources (1) less the outgoing radiation (2). The unknown
factors that contribute to the calculated 1.04x1022 joules of heat energy to balance the EEI
equation must come from a combination of earth based sources as noted previously.
The difference in the “gains and losses” in the Total Energy Gains (3) represents 18 times the
amount of primary energy produced by humans from potential energy sources noting that:
Natural instances of combustion, forest fires, deforestation and land clearing
represents between 5 and 6% of the total of the carbon dioxide emitted by the
combustion of fossil fuels in 2019.
This is a conservative measure based on the Australian Government’s 2019/2020
assessment of carbon dioxide emissions from the Australian bushfires contributing
an estimated 830 Mtonne (R4.14), the total of all other forest fires around the world
making the same contribution and forest land clearing and burn-off contributing a
further 1%. The value of the total of carbon dioxide emissions for 2019, 36.7 billion
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tonnes, was obtained from Our World in Data (R4.15). As carbon dioxide emissions
are proportionate to primary heat generation the additional energy contribution by
this category would be very small in comparison to the value shown in Table 4.2 (3).
Exothermic chemical reactions, cosmic events, equilibrium factors regarding natural
life uptake and volcanic activity, both terrestrial and sub-surface would also be
minor contributors.
The potential candidate for most of the additional heat energy summed in the earth energy
system in 2019 is the earth itself in the form of geothermal energy released from the mantle
into the sea floor. The geothermal energy in this category is additional to the geothermal
energy determined by the KamLAND group. The determined geothermal heat injected into
the earth energy system is shown in Table 4.3.
Table 4.3 – Calculating the Energy gains from geothermal sources in 2019
Sources
Difference between earth energy system gains and losses
Determined Geothermal Energy by the KamLAND group
Energy needed to melt sea ice in the Arctic and Antarctic
Additional Ocean heat content as measured by Cheng et al.
Total calculated energy added to the earth energy system
Less: Primary energy derived from potential energy sources
2019 Additional earth energy gains from geothermal sources
Joules
-1.04x1022
1.40x1021
1.43x1020
2.28x1022
2.43x1022
5.73x1020
2.41x1022
The data states that the total geothermal heat released by the mantle into the earth’s surface
layers was equal to 2.41x1022 joules in 2019.
The 2019 additional geothermal energy noted in Table 4.3, a persistent variable permeation
of the mantle’s heat energy into the oceans, averaged about 1.72x105 joules/day/m2
(1.97W/m2 of power) throughout the 71% of the surface area of the earth the sea covers. It
suggests that mantle heat permeates into the sea floor as a regular feature and at a variable
rate. Heat is added or subtracted to a nominal released amount as tectonic activity moves the
continental plates and opens and closes heat ejection apertures throughout the ocean floor,
possibly at a rate of greater intensity about the ocean ridges and at the junctions of the
oceanic and continental plates. The heat released into the oceans by geothermal transfer,
together with warm ocean currents, flows heat throughout the oceans.
4.3.4 - Release of geothermal heat into the ocean
The information reported by Cheng et al provided a glimpse of the heat energy added to the
total heat content particularly in the latter years of the 2010 to 2020 decade. However, it was
important to understand the change in the OHC in 2019 in order to be able to get a grasp of
the components that add and subtract from the heat energy content of the earth. The
summation of all the energy sources became a way of explaining why the outgoing irradiation
measured by CERES in 2019 was lesser than the incoming irradiation from the sun but not by
the amount of energy necessary to cause the increases in surface and ocean warming while
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the earth was on a moderate natural warming path. It proved that the sun is not the only
energy contributor and that there are properties of the earth that act in unison with the sun’s
irradiation of a magnitude of heat greater than primary energy production.
A further investigation was undertaken to identify the rates of change in the release of
geothermal heat into the ocean. The purpose was to identify the consistency of the increase in
the OHC for a longer period of time than the last 10 years. This investigation sourced data on
the Global OHC, 0 to 2,000m, (measured by NOAA (R4.16)) shown as the insert on Figure 4.8.
The rate of change in
global OHC p.a. (0 to
2000 m) calculated
from Figure 4.8 was
based on regions of the
curve that
accommodated a
simple line of best fit.
(Note that Cheng et
al’s 2019 data on OHC
mentioned previously
was for the whole of the
ocean not just the top
2000m.)
The results of the
assessment showed that there were periods, numbered 1 to 5, which could be shown to have
distinct rates of change in global OHC, 0 to 2,000m, during the period 1962 to 2020.
The results of the assessment of the NOAA Ocean Heat data is as per Table 4.4.
Table 4.4 – Rates of change in OHC 0 to 2,000m, 1962 to 2020
Time
1962 to 1966
1966 to 1968
1968 to 1975
1975 to 1990
1991 to 2020
2010 to 2020
Increased heat
content
-4.96x1022 joules
1.22x1021 joules
7.16x1022 joules
3.18x1022 joules
2.52x1023 joules
1.09x1023 joules
Number of years
4.03
1.74
7.15
15.69
28.82
10
Average Rate of
change p.a.
-1.23x1022 joules
7.05x1020 joules
1.00x1022 joules
2.03x1021 joules
8.73x1021 joules
1.09x1022 joules
A sixth (6th) rate of change assessment, reported separately in Table 4.4, for the period 2010
to 2020 was also made as there appeared to be an upturn during the latter part of the decade,
offsetting a significant OHC loss early in the decade.
The conclusion from the rate of change assessment in Table 4.4 is that the earth releases its
internal heat energy into the sea floor at varying rates. Taken in combination with the CERES
outgoing radiation assessment for 2019, together with all other heat energy components that
add and subtract from the total energy, the data indicates that for each time period shown
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geothermal heat energy released at the sea floor is partly dissipated into space and the
remainder is stored in the ocean principally below the thermocline.
When the rate of change was negative, as is the case in the period 1962 to 1966, it indicates
that either no geothermal heat was released (an impossibility) or the ocean was caused to give
up a quantity of its OHC. A possible explanation of the loss of heat energy relates to the
nuclear testing activities that were being conducted post World War II as described in section
4.3.5 – The atomic age.
OHC data for the period 1900 to 1960 was not available. An estimate of the average
geothermal heat emitted into the biosphere was based on the movement of the average global
temperature in the periods 1900 to 1960 compared to 1960 to 2020 and the relativity between
the average global temperature increase and the 0 to 2,000m OHC for the time period 1960 to
2020 by the criteria shown in Figure 4.9.
The reasoning for adopting this method was that the rate of growth of the OHC seemed to
correlate to the rate of growth of the average global land and ocean surface temperature
anomaly. An assessment of the two growth figures indicated that the OHC increased at a rate
7% faster than the temperature anomaly.
An estimated average value for the geothermal heat emitted into the earth’s biosphere of
9.33x1021 joules p.a. during the period 1900 to 1960 was calculated by dividing the
temperature anomaly growth ratio into the 2019 additional earth energy gains from
geothermal sources (2.41x1022 joules) and multiplying the result by 1.07. The value
calculated is about 7 times greater than the KamLAND geothermal heat release findings, and
about 40% of the total geothermal heat determined in 2019.
4.3.5 – The atomic age
The intensity of the nuclear detonations during the early to mid-1960’s, and that they
occurred in the atmosphere and underwater, may have been the cause of the expulsion of
OHC, particularly in the 0 to 2,000m depth, as represented by the negative rate of change in
the years 1962 to 1966 (as per Table 4.4), and a return to normality beginning in the latter
part of 1966. Nuclear testing in the atmosphere and underwater lessened after 1964.
Prăvălie, R., wrote in his article of 2014 (R4.17): “…, countries like the United States, the
USSR, the United Kingdom, France, and China became nuclear powers during 1945–1964 ...
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During this period, a large number of nuclear tests were conducted in all global environments
(atmosphere, underground, and underwater)”. He further noted that the Limited Test Treaty
came into effect in 1963 but it was not signed by France and China who continued to test
nuclear devices in the atmosphere.
A graphical representation of nuclear testing events post World War II, indicating detonation
intensity of each event, is shown in the article “Nuclear Testing 1945 – Today (R4.18).
Following is a hypothesis based on the testing of atomic devices causing the negative OHC
trend. It centres about the frequency and intensity of underwater and atmospheric detonations
leading up to and including activities to the mid 1960’s.
A quantification of this phenomena is complex as the data is difficult to obtain. It is offered
as a possible explanation for the negative OHC trend 1962 to 1966, the rate of OHC warming
from 1968 to 1976, a period of quiescence to 1990, and an advanced rate of OHC gain from
then to today.
One objective of an analysis in the circumstances leading to the negative OHC trend would
be to determine the amount of heat dissipated into space. However, in the absence of an
outgoing radiation monitoring device like CERES and other methods of determining heat
capture and retention in the biosphere as available today, it is impossible to have measured
data that could support an analysis. Whether more or less than the heat content of the water,
the detonations and other factors that contribute to outgoing radiation into space can only be a
calculated assumption based on what the total energy at that time could have been.
Each detonation had an impact on a considerable area of water surface, to the depth the
detonation blast reached. A significant volume of water, together with its heat content, was
ejected into the atmosphere. The blast plume (the mushroom), together with the water vapour
it contained, allowed the heat of both the blast and the OHC to rapidly dissipate into space.
The functioning of the hydrologic cycle under such conditions would be limited. The short
timing associated with any one detonation would prevent the hydrologic cycle from capturing
the atmospheric heat content.
Furthermore, the absence of the epipelagic zone and the thermocline following an
underwater, and possibly an atmospheric detonation, leaves an opening for the geothermal
heat to transfer to the atmosphere as the colder water at the oceans’ depth rushed to the
surface and neutralised the epipelagic and thermocline layers. Geothermal heat transfer
through a cold water layer is described in section 4.4 of this article titled “The earth’s energy
management systems".
The data in Table 4.4 implies that the ocean and atmospheric detonations created the
opportunity for the heat held captive in the epipelagic zone and the thermocline, and the
rising geothermal heat, to escape into the atmosphere and into space at a rate that resulted in a
(negative) OHC rate of change equal to -1.23x1022 joules p.a. from 1962 to 1966. There is no
other reason for it to happen. The earth did not stop its release of geothermal heat because
humans wanted to test their atomic bombs and there was no event that absorbed that quantity
of heat from the ocean.
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Figure 4.10 compares the Global Surface Temperature Anomaly and OHC (0 to 2,000m)
from 1955 to 1980.
The graphs show a
similarity in the
trends of both data
sets and the
particular increase
and reduction in the
data elements about
the 1960 to 1965
years.
Both segments of
the graphs in Figure
4.10 also show that
from about 1965
onwards the rate of ocean warming began to increase, moderately at first, but then at a rate as
shown in Figure 4.8.
The correlation between the two (2) datasets suggests:
1. The consequence of the atomic detonations carried out in the ocean and the
atmosphere resulted in significant ocean heat losses.
2. There is a possibility that the force of the terrestrial, oceanic and atmospheric
detonations had an effect on the stability of the earth’s continental plates, oceanic
plates, ocean ridges, subduction and obduction zones thereby deteriorating the
bonding of the crustal matter and creating an opportunity for the earth’s internal heat
to increase in its leakage into the oceans’ floor. In this way geothermal heat
contributed to the steadily increasing rate of ocean heating since the late 1960’s.
3. The atomic events represent a cause for total OHC increasing from an estimated
8.5x1021 joules p.a., on average, during 1900 to 1960 to 2.28x1022 joules in 2019
(about 2.7 times p.a. more in 2019 than in 1900 to 1960).
4.3.6 – Ocean heat accumulation
The water in the oceans stores heat energy that has been directed into it by the sun’s
insolation, the hydrologic cycle and geothermal heat. The sea floor is warmed by heat
conducted or vented into the ocean from the mantle. The 2021 rate of growth in the oceans’
heat content is in the order of 1.5x1022 joules p.a. according to L. Cheng et al in their 2022
article: “Another Record: Ocean Warming Continues through 2021 despite La Nina
Conditions” (R4.19).
The value of warmth added to the oceans is far greater than the amount of geothermal energy
said to be rising through the geothermal gradient or the residual delivered by the sun. This
presents itself as a quandary that, added to other questions on this matter, led to further
investigations into the imbalance in the earth’s input output energy content in an attempt to
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explain why the earth is warming if the stated energy imbalance indicates that more energy is
dissipated from the earth than is delivered by the sun, and where the heat came from that
increased OHC as reported by Cheng et al.
4.3.7 - Instantaneous evacuation of heat from the biosphere.
The observation from the negative rate of ocean warming that occurred between 1960 and
1964 infers that any intense short term expulsion of intense heat into the atmosphere, such as
a volcanic release of geothermal energy or the detonation of an atomic device, will allow
entropy to quickly take control and distribute the emitted heat into the Troposphere.
That action promptly changes the heat relativity between the layers of the atmosphere and
allows the excessive heat to pass directly into space. There would be no opportunity for the
prevalent biospheric heat management mechanisms associated with the hydrologic cycle and
the ocean heat store to recapture the heat.
The emission of heat in both a volcanic eruption and nuclear detonation creates intense heat
for a relative short time. The intensity of the heat would disrupt the thermodynamic barriers
set up by the incoming irradiation and the biospheric content of released heat. The released
heat would be promptly evacuated into the cooler Stratosphere and consequently through the
atmospheric layers to space as each of their boundaries buckle to the sudden upsurge in each
layer’s heat content.
The hydrologic cycle would not be able to capture the instantaneous release of heat from
these sources.
The hydrologic cycle is a continuous process that, depending on the average global
temperature and latitude, repeats in less than 12 days. There would not be time for the volume
of water vapour or precipitation in the atmosphere to gather all the heat that is emitted by
these localised events that may last from minutes to hours. Any heat gathered would have a
negligible effect on the overall heat content of the earth. Even a percolating volcanic event
may not have sufficient heat content to cause any significant disruption to the average global
temperature.
4.4 – The earth’s energy management systems
The ocean heat accumulation data provided by Cheng et al represented a significant increase
in the earth’s heat accumulation but it appeared not to have an impact on the earth’s average
global temperature of the magnitude expected with the amount of heat retained.
The rate of advance of an average warming trend, as described in the article Variability of the
Total Solar Irradiance (R4.20), states that the earth needs to retain a small part of the incoming
insolation in order to proceed in a warming trend. The amount of heat energy necessary to
advance a warming trend at 1.3°C/MYs was estimated to be 1.14x1016 joules p.a. On this
basis it suggests that the earth should be adding about 1.5x1020 joules p.a. to maintain the rate
of warming of 0.017°C p.a. reported by NOAA in their Global Climate Report – Annual
2016 (R4.21).
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However, what the 2019 OHC measurement by Cheng et al is stating is that the amount of
heat energy added to the oceans is about 150 times more than the amount necessary to
maintain the rate of warming of 0.017°C p.a. This data makes the measurements of the
incoming and outgoing thermal radiation measured by CERES even more confusing.
The assessment of the incoming and outgoing radiation (in Table 4.3) showed that, apart from
the anthropogenic energy created by the combustion or consumption of potential energy
materials, there must have been an additional 2.41x1022 joules of energy added to the earth
energy system to balance the total energy in 2019. The additional energy must be principally
supplied by the earth’s internal heat generating mechanism as it is the only other source that
could generate heat of this magnitude.
The need to balance the earth energy system to the value previously noted and the
determination of the magnitude of the geothermal energy released from the mantle raised the
question: “How can the earth emit considerable geothermal energy and it not have a strong
bearing on the average global temperature?”
4.4.1 – Earth’s energy processing environments
An examination of ocean heat accumulation, its sources, the amount of heat dissipated into
space and the rate of global warming introduced the idea that the earth had two (2) energy
processing environments, driven by two (2) opposing heat energy sources, and a layer of
ocean that separated them as shown in Figure 4.11.
The primary heat source is the sun. It delivers to
the earth 5.5x1024 joules of energy each year.
The earth’s rotation about its axis causes the sun
to strike any one point on the surface during the
day but it is absent from that particular point at
night. This allows the point affected by the sun to
warm and cool in the 24 hour day/night cycle.
Both the warming and cooling cycle apply
themselves in variable intensities at that one point
from the start of the day/night, to a peak point
during the day/night and to the conclusion of the
day/night cycle.
The earth’s obliquity also comes into play as
mentioned earlier.
Geothermal heat is a generally constant flow from
the earth’s core and mantle although it may vary one year to the next subject to movements of
the earth’s crustal mass.
The 700m thick top ocean layer contains, according NOAA (R4.16), about 74% of the heat
content of the top 2000m of the ocean as shown in Figure 4.12.
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This layer, considered
to be the epipelagic and
thermocline layers,
serves as the earth’s
“biosphere energy
processing
environments separator
layer” where one
energy processing
environment is above
sea level (comprising
the energy sources of
insolation,
anthropogenic energy, geothermal energy, any other energy released as heat into this
environment and the hydrologic cycle as the harvester of heat energy) and the other is the
mass of water below the sea’s thermocline layer (comprising of geothermal energy, insolation
that reaches the sub-thermocline layer, and any other energy released as heat into this
environment).
The proposed energy processing environments above and below the ocean separation layer
work in accordance to the Laws of Thermodynamics and result in:
The reported measurements of the incoming and outgoing radiation imbalance by
CERES.
The significantly increasing ocean heat content measured by NOAA and Cheng et al.
Create life supportive habitats above and below the ocean separation layer.
The sources of energy, and the methods the energy is gathered, results in the warming of the
separation layer of the oceans i.e. the epipelagic zone and the thermocline. The separation
layer supports/maintains the earth’s land-ocean surface average global temperature and
causes alterations to regional climate conditions.
The epipelagic layer captures the bulk of the directly incoming heat energy from insolation
that strikes the oceans’ surface and also the heat energy harvested from the atmosphere and
land and delivered to the oceans by the hydrologic cycle. The oceans expel some of their heat
energy in the form of evaporation; the first part of the hydrologic cycle. The atmosphere acts,
apart as the absorber of incoming irradiation and first release of the absorbed heat, as the
biosphere’s stabilising medium and distributor of accumulated water vapour and its heat
content. It is the biospheric mediator.
The way the two (2) energy environments interact with the separation layer is shown in
Figure 4.13. The epipelagic layer mixes its heat content throughout its depth and into the
thermocline layer.
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The epipelagic layer
will always be warmer
than the layers below it.
It shares its retained
heat only with the
thermocline layer in a
heat exchange system
that causes the
epipelagic and
thermocline layers to
change in thickness in
the passage of the
season as described in
section 4.2.5 of this
article titled “The
epipelagic zone and the
thermocline” and in
(R4.06)
reference to P. Webb’s
data. The temperature at the bottom of the thermocline layer
will always be equal to the temperature of the top of the mass of water below it.
The formation of the thermodynamic barrier, when two opposing sources of energy interact,
is shown in Figure 4.14. Geothermal heat rising from the sea floor flows upwards through the
oceans’ water transferring the heat into its surroundings
in a hap-hazard chain reaction (entropy) until it reaches
the bottom of the thermocline.
Insolation reaching the surface of the earth transfers its
heat into the epipelagic layer by wind, wave and the
hap-hazard chain reaction of entropy until it reaches the
beginning of the thermocline.
The epipelagic layer continuously interacts with the
thermocline as it heats and cools adding or subtracting
heat from the thermocline.
Entropy adjusts the distributed heat content into the
thermocline and then adjusts the heat transfer with the
deep ocean layer beneath it.
When the temperature at the junction of the thermocline
and the deep ocean layer (where the two (2) opposing
heat sources meet) reach equilibrium, it stabilises the separation layer by creating a
thermodynamic barrier between the base of the thermocline and the top of the deep ocean
beneath it.
In this situation the rising geothermal heat will be stopped from rising further by the
thermodynamic barrier until the temperature of the thermocline lowers below that of the mass
of water immediately below it.
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The geothermal heat in the mass of water below the thermocline distributes itself amongst the
layers of water below it. This action will eventually elevate the heat content of the total mass
of water in the ocean below the thermocline as the warmer upper layer distributes itself into
the cooler layers below it in its attempt to achieve equilibrium.
Note: The thermocline has heat transferred into it by the epipelagic layer. It is warmer than
the water warmed by the geothermal energy. A colder matter can’t convect its heat into a
warmer matter (the 2nd Law of Thermodynamics) so the geothermal heat is forced to disperse
into the cooler mass of water beneath the thermocline (in accordance to the Law of
Conservation of Matter and Energy) as it rises from the sea floor.
At the thermodynamic barrier the transfer of heat between the thermocline and the mass of
deep ocean water below it stops unless there is a heat imbalance between one layer and the
other. This aspect initiates a perpetual process where the depth of the epipelagic layer and the
thermocline changes in accordance to the day/night cycle and the season, with repeatability,
encroaching into, or retreating from, the bulk ocean below it.
4.4.2 - How geothermal heat contributes to global warming
The ocean’s management of all its sources that direct heat to the biosphere is a perpetual
process with variability based on seasons, the earth’s angle of obliquity, levels of heat
emissions from both the sun and the mantle of the earth and the several other sources
mentioned previously, including variations caused by weather events. The transfer of heat
alters every day on every point on the surface of the earth.
The earth is in a perpetual program of warming and cooling. The exception is geothermal
heat emissions into the earth’s surface layers. Geothermal heat, potentially at varying rates, is
continuously convected or emitted directly into the sea floor warming the ocean water
whether the surface of the earth is warming or cooling, is progressing through the seasons or
is experiencing the day/night cycle.
A day-by-day account of how changes in OHC alters the environment is conveyed by the
following general explanation of how the epipelagic zone, the thermocline and the deep
ocean waters react to the heat content that is added or subtracted from their mass.
In the following explanations the warmth gathered at the sea floor convects towards the
surface of the deep ocean.
In the absence of insolation:
The epipelagic zone dissipates heat into the cooler atmosphere.
The loss of heat in the epipelagic layer alters the dynamics of the epipelagic and
thermocline layers.
The lowering heat content of the epipelagic zone draws heat from the thermocline.
The thermocline begins to cool.
The heat status of the thermodynamic barrier between the thermocline and the deep
ocean water changes as the thermocline loses heat to the epipelagic zone.
Heat from the deep ocean permeates into the thermocline.
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The thermocline increases in depth as the heat of the base of the thermocline and the
top of the deep ocean reach a state of equilibrium.
The action lowers the thermodynamic barrier as the thermocline’s depth increases.
The depth of the epipelagic zone shrinks.
In the presence of insolation:
The epipelagic layer is gaining heat from the direct injection of insolation.
The warmth gathered at the sea floor permeates towards the surface of the deep ocean.
Heat is transported into the epipelagic zone by the hydrologic cycle.
The epipelagic zone transfers heat into the thermocline.
The depth of the epipelagic zone increases.
The thermocline warms.
The thermodynamic barrier between the thermocline and the deep ocean water
changes as the deep ocean water is colder than the water in the thermocline.
Heat in the thermocline transfers into the deep ocean water until equilibrium is
reached and initiates a thermodynamic barrier.
The depth of the thermocline shrinks.
When the geothermal heat increases in the presence of insolation:
The epipelagic layer is gaining heat from the direct injection of insolation.
The warmth gathered at the sea floor permeates towards the surface of the deep ocean.
Heat content greater than what established the thermodynamic barrier in place reaches
the base of the thermocline.
The heat alters the state of the thermodynamic barrier.
The heat transfers into the thermocline.
The additional heat in the thermocline disperses through the layer and interacts with
the heat at the base of the epipelagic zone.
Heat transfers into the epipelagic zone.
Equilibrium is reached between the thermocline and the deep ocean water.
The thermodynamic barrier between the two (2) establishes.
There is a net gain in heat content of the epipelagic zone and the thermocline.
The temperature of the thermodynamic barrier at the base of the separation layer is
elevated in accordance to the increased rate of release of geothermal heat.
The thermocline reduces in thickness and depth while the epipelagic zones increases
in depth.
The heat transferred into the separation layer remains until either the heat content
rising from the sea floor or the intensity of the insolation reduces.
Increasing quantities of geothermal heat add a portion of their annual heat to the separation
layer while reducing quantities of geothermal heat deduct a portion of the separation layer’s
heat. The amount of heat added or subtracted from the epipelagic layer is dependent on the
geothermal heat quantity.
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The remainder of the geothermal heat is either distributed within the deep ocean waters or
dissipated into space. The heat added to the epipelagic zone is further added to by heat
generated by other sources, such as anthropogenic activities.
Increases or decreases in the heat emitted by other sources cause a similar addition or
subtraction of heat from the epipelagic layer and have a similar subsequent impact on global
warming.
The total OHC is elevated by all the heat sources that terminate into the biosphere. Together
with OHC, the heat content of the land and atmosphere, promotes global warming.
4.4.3 – Heat gains and losses caused by the day/night cycle
The seasons cause the epipelagic layer to gain or lose its heat content. This affects both the
epipelagic and the thermocline layers. In summer the depth from the ocean surface to the
bottom of the thermocline is less than it is in winter. The movement of the two upper layers
of the oceans is a function of the heat transmitted into the oceans by insolation and the
hydrologic cycle. Their behaviour is also in accordance to the 2nd Law of Thermodynamics
and the Law of Conservation of Matter and Energy.
In summer the insolation striking the surface of the ocean intensifies. The epipelagic layer
gains heat content and increases in depth as the heat gathered from the sun penetrates deeper
into the water that was the top of the thermocline in winter. The top of the thermocline is lost
to the epipelagic layer.
The thermocline warms and the temperature differential between the thermodynamic barrier
and the cooler mass of water beneath it increases. The cooler layer below the thermocline
absorbs the heat in the lower portion of the thermocline. The exchange of heat continues until
a state of equilibrium is reached once more. The depth of the thermodynamic barrier is closer
to the ocean surface the warmer the epipelagic layer and the thermocline layer below it
becomes.
The reverse happens as the seasons change from summer to winter. The depth of the
epipelagic layer lessens and the thermocline layer increases as the heat content of the
separation layer is lost to the atmosphere and into space.
If the earth is in a cooling trend, and the separation layer cools to a temperature below the
temperature of the layer below the thermocline, the mass of water below the thermocline will
dissipate heat into the thermocline and reach the epipelagic layer. An event that will conclude
with the earth entering into ice age conditions of varying intensities, from a global freeze to
only affecting the South Polar Region, depending on the extent of the reduction in the sun’s
irradiation intensity.
The changing heat pattern of the earth’s surface during the period of one (1) rotation of the
earth about its axis at any one point on the earth’s surface at equinox is shown on Figure 4.15.
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Note that the day shortens as the
point on the earth approaches the
winter solstice and lengthens as it
approaches the summer solstice.
Hence the amount of irradiation
that any one point on the earth
receives on any one day is
constantly changing.
The insolation/dissipation graph
(A) on Figure 4.15 shows that the
heat that is received at any one
point during the day is dissipated at
night. There is a difference in the
amount of heat dissipated
depending on whether the earth is
following a warming trend or a
cooling trend.
When following a warming trend,
a portion of the heat is retained by
the ocean, whereas when following
a cooling trend, a portion of heat is surrendered by the ocean.
The Continental Plate and Open Ocean Outgoing LW and SW Radiation graph (B) have a
constant release of heat throughout the day and night if the ocean is warmer than the
atmosphere. However, little radiation is released during the day once the insolation strikes the
surface as the surface has to first have heat added to it until it reaches a point when the heat
content of the outgoing radiation is greater than the heat content of the incoming insolation
that strikes the surface. The heat content increases during the daylight period from dawn and
reaches a peak at a point in the afternoon prior to dusk. The surface then releases radiation
based on the difference in heat content between the atmosphere and the surface.
The intensity of the outgoing radiation increases as the atmosphere cools exhausting the
accumulated heat into space. At a point, the rush of outgoing radiation begins to slow down
as the surface cools and the temperature differential between the atmosphere and the surface
reduces until the sun begins to rise again and the cycle begins once more.
The Polar Region Open Ocean Outgoing LW and SW Radiation graph (C) shows that the
Polar Region does not behave in the same manner as the surface of the earth that is subject to
the 24 hour day/night cycle. The long periods of daylight and night result in a continuous
release of LW and SW radiation into space.
4.4.4 – Earth’s input/output energy – sources and drains
The earth’s primary and secondary sources of energy are the sun’s irradiation and the earth’s
geothermal heat. They are opposing heat sources that radiate towards the earth’s surface. The
sun is the greater heat source, at 5.5x1024 joules, whilst the earth supplies heat energy
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currently in the region of 3 to 3.6x1022 joules. Other heat energy channels, although
supplementary and important to the whole of earth’s heat content and energy management
system, supply far less heat energy.
The sun is the most important source of earth’s energy. Its energy is needed to lift the earth
from a heat content of about 2°K to the level necessary for life, as we know it, to exist on the
planet.
Figure 4.16 shows earth’s opposing heat sources (day phase). The heat sources have a
different effect on the:
Polar Oceans
Continental plates
Oceanic plates
The application of the
energy results in distinct
layers that alter in their
temperature and thickness on
the passing of the seasons.
An example of layers
separated by a
thermodynamic barrier are
the Troposphere and the
Stratosphere. The separation layer is called the Tropopause. This layer has a variable
aperture. It acts as a thermodynamic barrier whilst the earth is intercepting heat from the sun
during the day phase but loses that ability either once the earth enters the night phase or if
there is a sudden entry of energy into the biosphere that alters the heat content of the
Troposphere (or the Stratosphere) and alters their thermodynamic properties.
For example, a volcanic eruption during the day phase will introduce a sudden burst of heat
into the biosphere which will be quickly distributed about the immediate atmosphere and
change the conditions that would normally prevent the dissipation of heat into the
Stratosphere and into space.
To recap: The manner in which the Tropopause, and other thermodynamic barriers, are
created and maintained is based on the principle that two (2) opposing sources of heat create
a layer of equivalent heat energy that forms into a thermodynamic barrier. The barrier
prevents the movement of heat between adjacent layers creating a closed system environment
within each layer. Entropy within each of the layers disperses the heat into the layer as the
heat content of the closed system works towards a state of equilibrium. While in the closed
system the heat content of a layer is prevented from transferring to the open system of the
universe unless the heat content of one or the other layers changes.
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Figure 4.17 indicates three (3) reference locations about the earth and that each location has
different layers, boundaries (separation layers) and a different flow of heat during the day
phase of the 24 hour cycle.
The matters that determine how the layers are formed and maintained are:
The sequence of transfer of heat between one layer and another.
The density of the matter in the layer.
The heat capture capacity of the matter in the layer.
Each layer’s heat content.
Equilibrium heat values between layers that form separation barriers.
Entropy that maintains the heat content in the distinct separation barriers.
Variable apertures pertinent to the layers and the separation barriers where they apply.
The epipelagic and thermocline layer that maintains a persistent separation of the heat
energy delivered by the sun and by the earth.
The principle difference between the layers is their mass, content of water and, in the case of
the Polar Regions, the issues of insolation whilst being subjected to the earth’s obliquity.
The previous discussion explained how the movement of the sun’s irradiation and the earth’s
geothermal heat created the ocean separation barrier that, in turn, directed geothermal heat to
be distributed into the layers of water below the thermocline. Also discussed was that the
absence of an epipelagic and thermocline layer at the Polar Regions allowed for heat
deposited into the ocean to be dissipated into space.
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The importance of the previous discussion is that the sun and the earth represent opposing
energy sources that eventually meet at layer junctions such as the thermocline and the
Tropopause. There is no escaping the fact that the Laws of Thermodynamics, together with
the Law of Conservation of Matter and Energy, dictate the conditions that persist on earth
while the two (2) opposing forces (heat sources) are active.
In each of the categories of Figure 4.17 (day phase) there are black and orange “+” and “–”
signs. The black signs relate to geothermal heat and the orange signs to the sun’s irradiation.
A “+” means that the heat content at the layer nearest to the sign is relatively higher than at
the “–” sign. This allows for the transmission of heat from “+” to “–” for both sources of
heat.
Again, in the example of the Troposphere, the temperature at the junction of the earth’s
surface and the Troposphere is greater relative to the Tropopause but incoming solar
irradiation would see the layer as warmer at the junction of the Stratosphere than at the
surface of the earth that it is travelling to. The geothermal heat dissipating into space would
see the Tropopause as cooler than the surface of the earth. Each heat source applies its
particular relativity to the passage it takes unless it meets an obstacle, like a separation layer,
that causes the heat transfer to stop.
Figure 4.18 shows the heat flow through the layers during the night phase of the 24 hour
cycle.
In the night phase there is no irradiation that can counter the flow of heat escaping into space.
The atmosphere’s separation barriers cease to exist until the sun’s irradiation returns and
supplies heat to reform them.
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The heat content of the epipelagic zone and thermocline is not totally released during the
night phase.
The loss of heat to space may cause an alteration from the surface to the depth of the
thermocline but the epipelagic/thermocline entity remains and their action as a separation
barrier remains to stop the bulk of the geothermal heat delivered into the ocean from
dissipating into space. Any loss or gain of heat will cause the continual readjustment of the
depth of the epipelagic zone and the thermocline.
Land behaves differently to ocean areas. Land has a great variability in the amount of water
that it contains. Deserts, for example, contain very little water and the geothermal heat that
reaches the surface, together with the heat accumulated by the land during the day, would be
dissipated into the atmosphere once the sun ceases to shine onto the land.
Plant cover also impacts on the manner in which land absorbs insolation and hence the
amount of heat energy available for dissipation.
4.4.5 - The geothermal heat escape route
The release of geothermal heat into the ocean’s sea floor, even at its lowest point, will never
allow the deep ocean water to turn to ice while the internal workings of the earth generates
heat and that heat is either convected or released directly into the oceans water mass. The
geothermal heat accumulates in the deep ocean waters below the thermocline unless there is
an opportunity for it to escape and be dissipated into space.
In the situation we are in today, the intensity of the heat stored in the epipelagic layer will
prevent most of the heat captured in the mass of water below the thermocline from escaping
into the atmosphere except at the Polar Regions.
There is no separation layer at the Polar Regions. The Polar Oceans have a surface
temperature that permits sea ice to form (at about -2°C). Both Polar Regions still have vast
permanent sea ice shelfs that are melting rapidly.
This property of the Polar Regions performs as a thermal exhaust opening. It allows
geothermal heat and heat delivered to the Polar Regions to be dissipated into space day and
night throughout the year with only a small change in intensity in dissipation as shown on
Figure 4.15 (C).
4.4.6 - Heat dissipation from the Polar Ocean
The Polar Regions differ in the manner in which heat delivered to them is managed as the
epipelagic and thermocline layers (the separation layer) are absent. Accumulated heat is able
to escape into the atmosphere from the Polar Oceans if they are free of sea ice and at a
temperature above that which will allow sea ice to form but of insufficient warmth to allow
the epipelagic and thermocline layers to form.
In the case where there is a sea ice shelf, the rising geothermal heat acts on the colder ice and
causes it to melt from below. Similarly, geothermal heat rising on land on which glacial ice is
deposited causes the melting of the ice layer supported by the land. At the current rate of
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geothermal heat release it will accelerate the melting of the sea ice and the warming of the
Polar Regions at a rate greater than the remainder of the earth is experiencing. The separation
layer is not of a consistent thickness and thins from the equator to the upper latitudes and
merges into the colder ocean water at latitudes close to the Polar Regions.
Figure 4.19 shows that the epipelagic and thermocline layers are not evident in the Polar
Regions. The
Antarctic, the colder
of the Polar Regions,
has a greater distance
between the South
Pole and the edge of
where the separation
layer ends (distance
“A” in Figure 4.19)
than the North Pole
(distance “B” in
Figure 4.19).
The absence of a
separation layer near
the Polar Regions
provides an
opportunity for the
heat to escape into
the atmosphere and dissipate into space through a cooler channel - shown as the “geothermal
heat escape route” on Figure 4.20.
The geothermal heat escape routes are also
utilised by warm ocean currents that deliver heat
to the Polar Regions. The heat content of the
warm ocean currents mix with the rising
geothermal heat as the warm ocean currents lose
their heat content to the colder ocean and
atmosphere.
However, the warm ocean currents will be a
barrier to the rising geothermal heat until they
lose their heat content by its dispersion into the
colder Polar Ocean water, the melting of the sea
ice shelf and, in the case of land in the Arctic and
Antarctic, warming the adjacent land.
The combined content of the warm ocean
currents and geothermal heat will first disperse
itself amongst the colder water but will
consequently escape into the atmosphere if the
atmosphere becomes relatively colder than the water. The Polar winter is a time that the
release of heat from the Polar Oceans would be maximised.
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What heat escapes into space will add to the outgoing radiation from insolation and other heat
energy sources measured by CERES as LW and SW radiation. However, the bulk of the
geothermal heat is stored in the mass of water below the thermocline, where the thermocline
exists.
The heat that makes its way to the atmosphere and into space through the geothermal heat
escape routes is the sum of geothermal heat and heat captured by the oceans directly (from
insolation) or deposited into them (by the hydrologic cycle) and transported to the Polar
Regions by warm ocean currents when relative heat conditions between the warm ocean
currents and the heat stored in the deep ocean waters allow the two sources of heat to
combine.
During a warming trend the distances between each of the Poles to the edge of their
respective thermocline decreases progressively as OHC increases. This reduces the surface
area available for heat in the oceans to escape into the atmosphere and into space. The area of
warm water maintained by the thermocline and the epipelagic zone increases. Evaporation
from the oceans increases. This action increases the turnover volume of atmospheric water
and reduces the hydrologic cycle time; two (2) aspects of the hydrologic cycle that alter
rainfall patterns and precipitation volumes.
4.4.7 - The Polar Regions’ hydrologic cycle
The Polar Regions have environmental peculiarities that set them apart from the remainder of
the earth. The eight (8) numbered steps in the energy transfer and absorption process
particular to the Polar Regions are noted on Figure 4.21.
The hydrologic cycle
that operates at the
Polar Regions
moderates the
acceleration of the
warming phase by
absorbing some of the
energy injected into
the earth’s
environmental system,
both from natural and
anthropogenic sources.
The absorbed energy warms the Polar Oceans and the land, and melts ice deposits on land
and sea.
Note: A study titled; Direct observations of submarine melt and subsurface geometry at a
tidewater glacier (R4.22), (Sutherland D. A., et al, 2019), confirmed that the process of Polar
ice melting and ocean warming was proceeding at a rate much faster than expected.
The eight (8) steps particular to the Polar Regions are described as follows:
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Step 1. Ocean currents from the equatorial and sub-equatorial regions deliver a layer of warm
water to the Polar Region. The layer of ocean water in warm currents can be up to
1,000 metres thick.
Step 2. Geothermal heat rises from the mantle.
Step 3. The warm ocean current and the geothermal heat combine. Where there is no sea ice
shelf stopping the heat it rises into the atmosphere eventually dissipating into space.
The combined heat warms the sea ice shelf and melts the ice. The sea ice shelfs are
not as thick as the layer of warm ocean water. The warm water contacts the edges of
the sea ice shelf and causes them to melt. The warm water also travels below the sea
ice shelf to melt the ice from below. The energy in the warmer water is absorbed as it
melts the ice. The area and the thickness of the sea ice shelf reduces.
Step 4. The warm ocean current reaches land below the sea ice surface. It warms the land in
conjunction with the geothermal heat that rises through the earth’s crust (R4.23). The
force of the ocean mass and current drives the warmer water between the junction of
the sea ice shelf and the continental shelf at or below sea level.
Step 5. The warm ocean water makes its way to the junction of the land and glacial ice on the
continental plate. The transfer of heat to the junction of the land and glacial ice
promotes ice melt and the acceleration of glacial ice flow. An aspect of ocean
warming and sea shelf ice melt confirmed in the April 2021 article: “Pathways and
modification of warm water flowing beneath Thwaites Ice Shelf, West Antarctica” by
K. Wåhlin and co- authors (R4.24). There is a strong probability that the rising
geothermal heat will also melt the base of the ice deposited on the land of the
Antarctic continent.
Step 6. As the ocean water warms it increases the amount of evaporation at the Polar
Regions. The extent of the volume of evaporation is dependent on the temperature of
the warm current and the extent the cooler Polar Oceans and sea ice can absorb
energy and reduce the temperature of the mixed ocean waters. The warmer the mixed
Polar Ocean water becomes the greater is the volume of evaporation resulting from its
surface. The warmth of the evaporation elevates the temperature of the Polar Region.
Step 7. The prevailing wind mixes with the warm wind currents. The prevailing winds drive
the evaporation onto the area of glacial ice that is deposited on the continental plate.
The winds exchange energy with the colder environment and warm the atmosphere.
Step 8. The evaporation precipitates in a volume proportional to the extent of evaporation. If
the atmospheric temperature becomes warm enough then the precipitation will fall as
rain and help to melt the surface of the glacial ice.
The continuation of the warming Polar Hydrologic Cycle causes a transitional change to the
climate of the Polar Region.
4.5 –The Earth Energy System (EES)
There are many models of the earth’s energy budget that show the imbalance of the
input/output radiation based on measurements taken by orbiting monitoring satellites.
The earth energy budget (EEB) models prominent in many publications take into account the
incoming solar irradiation, cloud cover, reflections and absorption of the incoming irradiation
and various factors of earth’s heat emissions, such as thermals and evaporation, balanced by
back radiation from greenhouse gases (radiative forcing).
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Figure 4.22 is an example of an EEB by L. Chambers in the article; “Energy Budget: Earth’s
most important and least appreciated planetary
attribute” (R4.25).
The diagram is representative of all
components that affect the earth’s surface in
accordance to the EEB model but it does not
take into account all the sources of energy that
the earth is subjected to as noted in Table 4.2.
The article implies that a standard EEB model
requires an additional source of energy in
order to balance the CERES satellite based
measurements of incoming and outgoing
energy.
The earth energy system (EES) model is proposed as an alternative to the earth energy budget
model. The EES model encompasses all known energy sources and drains that apply to the
earth and describes the earth as a unique satellite of the solar system with a hot internal core
and mantle, magnetic field protection and biospheric properties that promote carbon based
life.
The proposed EES model is based on the concept that the CERES monitoring satellite
measures the incoming (the suns intercepted irradiation) and outgoing long wave (LW) and
short wave (SW) radiation during a prescribed interval of time and that the net difference in
the measurements states that either a greater or lesser amount of energy is dissipated than is
received from the sun.
Figure 4.23 shows the five (5) principle components of the earth energy system are associated
with the biosphere. Each has the
potential to impact the total
energy in the EES and alter
earth’s environmental and
weather conditions.
The earth’s heat energy
associated activities, also noted
on Figure 4.23, are associated
with the biosphere, atmosphere,
land and oceans.
They are the elements that
manage the total heat content
uptake and storage from
insolation and other sources that
results in the residual heat energy
that is dissipated to space in the
forms of LW and SW radiation.
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In the EES model global warming and climate change are consequent to the intercepted level
of the sun’s insolation and the added energy of associated heat energy producing and
consuming activities directly related to the earth.
4.5.1 – The five (5) biospheric components of the EES
Each of the categories listed in the energy associated activities block contribute to the total of
the energy that has a direct impact on the earth’s environmental conditions in accordance to
the 5 biospheric components as follows:
1. Heat energy interception.
There are two (2) major sources of heat that are intercepted by the biosphere; the sun
and the earth’s geothermal energy as described earlier. Both are constant sources of
heat but have a variability in the heat intensity that affects the earth based on:
- The changing physical properties of the sun and its irradiation output.
- The rotation of the earth on its axis.
- The constant minimum level release of the internally generated geothermal heat
and additional irregular releases of internal heat (by volcanos, fissure openings
etc.) as the continental and oceanic plates move about the earth.
- Cloud cover, aerosols and dust that can prevent the sun’s heat from reaching the
earth’s surface.
- The dynamic and orbital properties of the earth, known as the Milankovitch
cycles, which alter the earth’s relationship with the sun.
2. Heat energy generation.
- Heat energy is generated in the biosphere by natural events such as forest fires,
life, naturally occurring chemical reactions and intercepted cosmic impact events.
- There are also anthropogenic events such as the combustion of fossil fuels, the
reaction of nuclear materials and the application of exothermic chemical reactions.
3. Heat energy consumption.
- Life has a cycle. Life is born, grows and dies. It consumes the sun’s energy as it
creates biomass.
- Death subjects the life to decomposition which releases the stored energy back to
the environment.
- A comparison between the biomass from one period to the next gauges whether
energy has been consumed or released.
- Ice melt also consumes energy as the heat is absorbed and converts the ice to
water although this will cease once all ice deposits are melted.
4. Heat energy storage.
- Heat is stored in the atmosphere, the land and the ocean.
- The ocean is the principle heat store.
- The land and the atmosphere radiate their heat into cooler areas towards space.
- Evaporation from the ocean releases heat from the ocean into the cooler
atmosphere.
- Evaporation volumes increase the warmer the earth becomes.
- Evaporation heat losses radiate into cooler areas towards space.
- Ocean currents transfer heat from a warm source to a cooler receptor.
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-
The hydrologic cycle assists insolation to add heat energy to the oceans heat store
by gathering heat in the atmosphere and land.
5. Heat energy dissipation.
- The atmosphere, land and the ocean each release heat that is dissipated into space
both day and night.
- A greater intensity of the rate of heat dissipation into space occurs during the night
phase of the earth’s day/night cycle.
- Cloud cover reduces the rate of heat dissipation into space.
4.5.2 – Differences between the EEB and the EES models
The most significant difference between the EEB model and the EES model is that the latter
does not include radiative forcing. Radiative forcing would imbalance the EES model.
The EES model encompasses all the energy sources that affect the earth and meets all the
criteria that defines the earth and its heat management mechanism as abiding by the Laws of
Thermodynamics and the Law of Conservation of Matter and Energy.
The action of heat absorption by greenhouse gases (and other gases in the atmosphere) is an
aspect of earth’s total energy complement and internal environmental cycles and controls.
The dissipation of energy is representative of all activities. The measurement of the earth’s
land and ocean surface temperature records the heat content of the atmosphere at the time the
measurement is taken at the location that it is taken at.
The EES model consolidates all the energy additions and subtractions that would cause the
earth to experience a growing or reducing retained heating content that can be identified as
causing global warming or global cooling. It could also be that two (2) or more energy
associated activities are contributors to a warming or cooling trend or could influence the
direction a trend the earth was following.
The sun remains the prime contributor to the earth’s energy system. The level of irradiation
intercepted by the earth would initiate a warming or cooling trend during a 150MY Solar
Cycle.
Note that when the CERES data is taken into consideration:
A Total Solar Irradiance of 1361W/m² represents the solar energy delivered by the
sun at a trend turn point as per the article; “Variability of the Total Solar
Irradiance” (R4.20). At this level of irradiation the sun maintains a steady level of heat
without causing either a warming or cooling trend on earth.
The Solar Constant, of about 1367W/m² (represented by the PMOD Composite TSI
Time Series (Daily Means), is a value slightly higher than what it was measured to be
by CERES (represented by the ACRIM Composite TSI Time Series (Daily Means) as
reported in the article: ACRIM total solar irradiance satellite composite validation
versus TSI proxy models by N. Scafetta and R. Willson (R4.26).
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4.6 –Tectonic events that increased the earth’s AGT
This section hypothesises that tectonic activity has the potential to cause an elevated release
of the earth’s geothermal heat that then increases the earth’s average global temperature. The
conceptual method of operation is described in the example associated with the South
American Altoplano uplift event.
4.6.1 – Earth’s dynamics
Tectonic activity is a persistent component of the earth’s dynamics. The continental plates
move constantly at a slow pace that, over millions of years, changes the layout of the land
masses and the oceans.
The motion of the plates of land that “float” on the fluid magma below them, some with
oceans above them, results in the creation of pressure that moves and alters the topography of
the solid matter that is the basis of the earth’s crust. The water in the oceans moves about to
fill depressions created by the three (3) dimensional movement of the solid matter. Fault lines
delineate one plate from another where they join.
The movement of the plates result in subduction and collision events that have the potential
to cause rifts and cracks in the fault lines between them. The fault lines can manifest as
earthquakes, volcanoes or as sea floor vents that release the earth’s internal heat into the
biosphere.
Note: In the context of this discussion the biosphere is considered to extend from the lowest
point on the sea floor to the top of the Troposphere as all major events that impact the earth’s
surface occur in this space.
The heat that escapes from crustal openings into the mantle is one component of the earth’s
total energy management system that adds to the heat delivered by the sun.
In the paper, “Variability of the Total Solar Irradiance”, W. Fiori, March 2021(R4.20), reference
was made to the work of C. R. Scotese, N. J. Shaviv and J. Veizer, that identified the
existence of the 150 Million Year Solar Cycle, with defined “hot” and “cold” periods. The
graph (Figure 2 in the article noted) represents the highly smoothed average global
temperature variations in the cycle as per C. R. Scotese’s graph (Figure 1 in the article noted)
converted to a linear form. The graph (Figure 2 in the article noted) shows that the earth
intercepts a quantity of heat from the sun that varies in intensity during the cycle time. The
graph, although representing a highly smoothed movement of the average global temperature,
also shows that the cycle is not smooth as there is evidence of interruptions and deviations in
both the cooling and warming trends that act on the trend for a period of time and then the
trend settles back to the cycle path.
4.6.2 - The South American Altoplano uplift event
The interruptions and deviations to the 150MY Solar Cycle trend evident in the mid to lateCenozoic Era were investigated in terms of the timing and events related to the uplift of the
South American Altoplano. At this time the Pacific and Nazca Plates, largely responsible for
the western North American and South American mountain ranges’ orogenies in the late
Cretaceous, continued to apply subduction pressure against both the American continental
plates altering the topography of the two continents.
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Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/7/2022
This “recent” time frame was used as an example of a tectonic period that caused an increase
in the average global temperature during a cooling trend induced by the 150MY Solar Cycle.
The enormity of the earth’s capacity to cause significant topographic and environmental
changes is shown during the period of time it took to uplift the Altoplano, situated in the
Andes Mountains of Bolivia and Peru, to 4000m beginning in the late Miocene. This
significant event was part of the subduction event that affected both the North and South
American continents’ western coastlines. It resulted in several changes to the topography of
the land to the western coastline of the North American and South American continents
mountain ranges and coastlines.
The Altoplano, today a plateau that has an area of about 103,600 km² (40,000 miles²), is more
than 3,962m (13,000 feet) above sea level in places, as noted in several references (R4.27). The
area of the Altoplano is second only to the area of the Tibetan Plateau, as noted by C. Wang
(R4.28)
(2,500,000km² in area) and would have required a corresponding relative magnitude of
force to cause the uplift.
The events particular to the uplifting of the Altoplano occurred in two (2) steps and is
summarised as follows:
1. The first uplift to 2,000m above sea level began about 24 MYA. The Altoplano
reached that height in a time of about 8MYs and stabilised for about 4MY.
2. A second uplift of the Altoplano took it to 4,000m above sea level in the following
5Mys.
Figure 4.24 indicates the timing and the changes in the average global temperature as the
Altoplano uplifted. It shows the two (2) characteristics that are related to the measurement of
39
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/7/2022
global warming during the Miocene; the concentration of atmospheric carbon dioxide (in
blue) and the average global temperature (in red).
The following discussion commences with the earth pursuing a cooling trend during the
Eocene that terminated as the Quaternary Ice Age reached its low point in the Pleistocene,
2.1MYA.
Note: When proceeding through the discussion below it is important to note that a
subduction event was occurring between the Pacific plate and the North American plate, with
significant changes to the land topography of North America, at the same time as the tectonic
activity in South American continent uplifted the Altoplano. The two events created a fault
line, and an area of subduction pressure, that extended for more than 12,000 km from the top
of the western edge of the North American plate to the bottom of the western edge of the
South American plate. Subduction pressure was intermittently applied about this fault line for
about 18Mys as the land about the western perimeter of the two continents, some of which
was submerged below the sea, was uplifted to various heights above sea level; the highest
uplift being the Altoplano. The tectonic forces applied to both continents contributed to the
movements of the average global temperature and the atmospheric concentration of carbon
dioxide.
Subduction forces were intensifying on the western border of the Americas and, in particular,
between the Nazca Plate and the South American Plate during the early to mid-Oligocene
resulting in a period of increasing tectonic activity that began to release internal (geothermal)
heat into the ocean and land surrounding the fault line. As the heat spread about the oceans it
caused a reduction in the rate of cooling the earth was following.
About 24MYA tectonic activity strengthened. The increased release of geothermal heat at
subduction fault lines warmed the oceans further and they released more carbon dioxide into
the atmosphere. The sun induced cooling trend was continuing but the geothermal heat was
able to slow the rate of cooling that was taking the earth to the low point of the ice age.
Note: The earth had been following a cooling trend that began in the late Cretaceous. The
release of the geothermal heat by the subduction event caused an interruption of the trend.
At a point in the late Oligocene, early Miocene, about 23MYA, the land mass that represents
the present Bolivian and Peruvian shoreline and the Altoplano began to rise. It elevated a
great mass of seawater with the Altoplano, contained in its natural depressions, on its journey
to the first stage of the uplift to 2,000m. The tectonic pressure increased the rate of release of
the earth’s internal heat. The average global temperature began to rise as the heat dispersed
about the oceans. The oceans warmed and released more carbon dioxide captive in the ocean.
The pressure abated about 14MYA but the release of geothermal heat continued. The rate of
cooling caused by the reduction in irradiation from the sun was lessened by the tectonic and
volcanic activity. The average global temperature remained steady for about 5 million years
before the volcanic activity subsided, stabilised and the average global temperature once
again began to decline in accordance to the reduced irradiation from the sun.
The average global temperature increased by about 1.3°C in the 9MYs of elevated tectonic
and volcanic activity. However, when taking into account the potential decline in the average
global temperature(about -1°C), had the cooling trend not been interrupted by the tectonic
40
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/7/2022
events, then the tectonic activity of that time would have increased the average global
temperature by about 2.25°C, as shown in the portion of the graph coloured in orange, in
Figure 4.25.
The increase in the average global temperature represents a rate of change of about
0.25°C/MYs.
However, there is no surety that the average global temperature trend that began just before
the beginning of the uplift would have continued.
Two (2) alternative possibilities of cooling trends that could have been influenced by the
tectonic activity of that time have also been shown on Figure 4.25. The two (2) possible
cooling trends (coloured in peach and blue on the graph) had the potential to decrease the
average global temperature by about 1.25°C.
Hence, the potential for the tectonic activity of that period to have interrupted the cooling
trend was in the order of adding about 3.8°C to the average global temperature in a time of
about 9MYs; a rate of change of about 0.42°C/MYs.
This is a minor rise in average global temperature when compared to the last 100 years that
has seen the average global temperature increase by 1°C (representing a rate of warming
equal to about 10,000°C/MYs).
A second bout of subduction pressure started about 12MYA. It released the earth’s internal
heat for the next 7 million years. It slowed down the rate of cooling but could not prevent the
average global temperature from steadily decreasing even though the Altoplano was raised a
further 2,000m.
The land stability was maintained from 5MYA to today. Evidence of the tectonic activity that
raised the Altoplano from sea level to 4,000m is strewn about the Altoplano. Lakes have
41
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/7/2022
dried and their sea salt content remains in the depressions in which the water originally laid.
The eastern and western cordilleras of the Andes about the Altoplano show many
extinguished volcanos as evidence of its geologically turbulent recent past.
All in all the uplifting of the Altoplano to its final 4,000m above sea level repose hampered
the rapid decline the average global temperature was following. However, it could not stop it
from bottoming to an intense ice age that peaked 2.1MYA.
A point to note is that the atmospheric concentration of carbon dioxide did not correlate
consistently with the changes in the average global temperature throughout the Oligocene,
Miocene and Pleistocene Epochs. The 140ppmv increase in the atmospheric concentration of
carbon dioxide happened in a time of about 9MYs (23MYA to 14MYA), at a rate of
15.56ppmv/MYs and about 125ppmv in 5MYs (10MYA to 5MYA), at a rate of
25ppmv/MYs. The increase in the atmospheric concentration of carbon dioxide from 10 to
5MYA corresponds to a drop in the average global temperature of about 1.5°C. The rates of
change in the two (2) occurrences of increases in the atmospheric concentration of carbon
dioxide during the Miocene are negligible when compared to the rate measured in the last 50
years.
At no time were the intrusive sources of geothermal and volcanic energy of such an intensity
that the rate of warming was more than in the possible range of about 0.25° to 0.42°C/MYs.
This was despite the influence of aggressive subduction forces that acted to create mountain
ranges on the western coastline of two (2) continents over a distance of about 12,000km.
4.6.3 – Temperature changes of the Arctic Ocean
Reference to the temperature of the Arctic Ocean in Figure 4.24 indicates the amount of
geothermal energy that was released during this period. In the article, “Evidence for ice-free
summers in the late Miocene central Arctic Ocean”, by R. Stein et al, 2016 (R4.29), the
researchers did not relate the northern Polar Oceans to a particular timing other than in the
late Miocene. The arrow pointing backwards towards the early Miocene and into the
Oligocene in Figure 4.24 relates the increase in the ocean temperature to the timing of the
beginning of the second uplift to 4,000m and the precursor tectonic activities that initiated the
uplift, including the first uplift that took the Altoplano to 2,000m. These events support the
cause for the temperature measurements the researchers identified.
A significant amount of the earth’s geothermal heat must have been injected into the earth
energy system at that time. The rate of decline to the Quaternary Ice Age low point 2.1MYA
did not accelerate until the end of the Pliocene. Had the sun’s intercepted irradiation not
declined to a level that took it to the ice age low point, the second uplift would have added
considerable heat content to the oceans and the average global temperature would have
climbed substantially by perhaps an amount equivalent to the first uplift.
At all times in the discussion above the average global temperature was directly related to the
earth energy system’s volatile energy sources and responded to the content of energy in the
biosphere in accordance to the intensity of the sun’s insolation and the intensity of energy
other intrusive sources could deliver. The only energy source missing in the Miocene, when
compared to today, was the heat energy and water vapour generated from potential energy
42
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/7/2022
sources (fossil fuels, nuclear materials and human induced exothermic chemical reactions)
exhausted into the earth energy system in several different ways, principally in the biosphere,
and predominantly above sea level.
4.6.4 – Other events of collision and uplift
The intensity of heat released from the earth’s mantle can be related to two (2) other events of
significant collision and uplift of the earth’s tectonic plates that have occurred in the last 250
million years:
The Permian Mass Extinction Event.
The Paleocene-Eocene Thermal Maximum.
Figure 4.26 indicates the timing of these events and their impact on the average global
temperature.
Both events share similarities to
the South American Altoplano
Uplift event:
They are events where
land masses merged.
The uplift associated with
the subduction and the collision
was extreme in force and of a
relatively short geologic time
duration.
The movement of the
tectonic plates and the uplift
forces created:
o A plateau in Asia when it collided with India (the Tibetan Plateau).
o The final stage of the consolidation of all continental plates into one (1)
landmass, Pangaea.
Volcanic activity resulted from the subduction and uplift of the continental plates.
Considerable sea floor activity occurred at the juncture of the moving tectonic plates
with potentially high releases of the mantle’s heat directly into the oceans.
The oceans’ additional heat content increased the earth’s average global temperature
above the rate of irradiation received from the sun.
The event, particular to the time of the Permian Mass Extinction, added about 2°C to
the sun’s induced peak average global temperature prior to the turn point to a cooling
trend.
It was only during the time-frames of these two major collision events that the Arctic Region
was found to have both land mass and a warm temperate climate in the last 600 million years
according to the paleoclimate maps provided by C. R. Scotese (R4.30).
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Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/7/2022
It suggests that, at those times, the Polar Ocean water temperature would have been well
above 0°C as occurs at warm temperate regions today throughout the seasons.
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Earth’s Energy Balance and Thermodynamic Properties
By: Walter Fiori,
Revised: 16 July, 2022. (Revisions to sections 4.3 and 4.3.3 of original article: Earth’s
Energy Balance, Heat Sources, Global Warming and Thermodynamic Properties of 8/7/2022)
Abstract
This article theorises that the earth is an entity in the solar system that has properties that
promotes life supported by the level of warmth from two (2) principle sources of heat:
1. The sun – that, together with the earth’s biospheric properties, elevates the earth’s
status above a black body and supplies the warmth that maintains the conditions for
life.
2. The earth’s mantle and core supplying heat in a volume that is continuous but subject
to variability dependent on the thickness of the earth’s crust, extent of fissures in seafloor ridges, the movement of the continental and oceanic plates and subduction (or
obduction) events.
The interactivity of the heat released from the two (2) sources is considered in terms of the
Laws of Thermodynamics and the Conservation of matter and Energy as, together, they have
an effect on the earth which initiates a reconsideration of the current concept of the Earth’s
Energy Balance and causes of global warming.
Contents
Abstract ............................................................................................................................. 1
4.1 - Introduction ............................................................................................................... 2
4.2 – The Earth’s heat sources and heat capture mechanisms ............................................. 4
4.2.1 - Insolation ............................................................................................................ 4
4.2.2 - Ocean currents .................................................................................................... 6
4.2.3 – Geothermal heat ................................................................................................. 6
4.2.4 - The atmosphere ................................................................................................... 7
4.2.5 - The epipelagic zone and the thermocline ............................................................. 8
4.3 – Earth Energy Imbalance (EEI) ................................................................................ 11
4.3.1 – Sources of heat energy that impact EEI............................................................. 12
4.3.2 – Glaciation and heat energy absorption .............................................................. 13
4.3.3 - Energy sources that impacted the earth in 2019 ................................................. 14
4.3.4 - Release of geothermal heat into the ocean ......................................................... 15
4.3.5 – The atomic age ................................................................................................. 17
4.3.6 – Ocean heat accumulation .................................................................................. 19
4.3.7 - Instantaneous evacuation of heat from the biosphere. ........................................ 20
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4.4 – The earth’s energy management systems ................................................................. 20
4.4.3 – Heat gains and losses caused by the day/night cycle ......................................... 26
4.4.4 – Earth’s input/output energy – sources and drains .............................................. 27
4.4.5 - The geothermal heat escape route ...................................................................... 31
4.4.6 - Heat dissipation from the Polar Ocean............................................................... 31
4.4.7 - The Polar Regions’ hydrologic cycle ................................................................. 33
4.5 –The Earth Energy System (EES) .............................................................................. 34
4.5.1 – The five (5) biospheric components of the EES ................................................ 36
4.5.2 – Differences between the EEB and the EES models ........................................... 37
4.6 –Tectonic events that increased the earth’s AGT ........................................................ 38
4.6.1 – Earth’s dynamics .............................................................................................. 38
4.6.2 - The South American Altoplano uplift event....................................................... 38
4.6.3 – Temperature changes of the Arctic Ocean......................................................... 42
4.6.4 – Other events of collision and uplift ................................................................... 43
References ....................................................................................................................... 44
4.1 - Introduction
The principle sources of heat, the sun and the earth, are accompanied by other sources of heat
that associate with life, irregular natural events such as volcanic convulsions and forest fires
and the energy released from potential energy sources by human (anthropogenic) activities.
In addition to the injection of heat into the earth system there are systems in place that
transfer heat from one point to another such as:
Ocean currents that deliver water warmed at the equator to the colder Polar Regions.
Ocean currents that transport warmed water east to west about the equator.
Convection of the earth’s heat into the atmosphere and into space.
Wind and water systems that transport clouds, water vapour and heat about the earth.
The hydrologic cycle that harvests heat in the atmosphere and land and returns it to
the oceans.
These variable component are of considerable importance in particular as to how they apply
uniquely to continental plates, open oceans at latitudes below the Polar Regions and at the
land and oceans of the Polar Regions.
The most important of the Polar Regions’ particular properties is that they don’t have a 24
hour day/night cycle. Instead, because of the earth’s axial tilt, they have long periods of
daylight followed by long periods of night. The absence of an alternating 24 hour day/night
cycle, together with their high latitude, creates a situation that is particular to the Polar
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Regions. They receive little life giving warmth from the sun and it leads to the possibility of
them becoming ice bound during spells of reduced levels of insolation i.e. ice ages.
The process that leads to ice age conditions begins with a deep cooling trend. Consequences
of the cooling trend alter the environmental conditions of the Polar Regions that progress to
land based glaciation and sea ice extent in a particular sequence.
The South Pole is the first Polar Region to be affected during a cooling trend. The cooling
trend progressively cools the surface of the sea and turns surface water to ice in the winter.
The ice melts in the summer. This continues until the cold reaches an intensity that creates a
permanent sea ice cover that persists year round. The area of the permanent sea ice cover
increases the lower the average global temperature is taken to.
The same process occurs in the Northern Polar Region as well if the cooling trend continues
to lower the average global temperature. When this occurs the temperature of the northern
oceans is taken to the point where their surface begin to turn to ice and the process continues
as per the South Polar Region until the cooling trend ceases.
Note that at a time of an extensive ice age, as occurred in the Pleistocene following the
cooling path that began a few million years leading up to the Pleistocene, the extent of sea
ice cover is also subjected to the earth’s dynamic circumstances related to the Milankovitch
cycles.
Glacial ice accumulates on land as the cooling trend progresses and the cold conditions of the
ice age deepen.
The oceans at the equatorial regions increase in their warmth when a warming trend begins.
Ocean currents take the warm water to the Polar Regions. The heat in the water current
merges with heat released by geothermal activity. The heat dissipates into the cooler Polar
Ocean water warming it. The sea ice begins to melt. The continual flow of warm water and
geothermal heat eventually warms the Polar Region’s ocean water sufficiently to melt all the
sea ice and halts any further sea ice from forming. The glacial ice on land begins to melt as
ambient temperatures and evaporation from the warming ocean increases.
In time the continual flow of heat energy into the Polar Regions changes their climate status.
Warm temperate climate conditions are reached if conditions drive the peak average global
temperature to become high enough. This process follows the energy inputs into the earth’s
biosphere, from various sources, which determine the average global temperature and the
potential for climate change.
Energy inputs and outputs that have an effect on the earth’s temperature and climate
conditions identify the earth as part of the open system of the universe and subject to
universal physical laws. The earth stands apart from a “black body” because of its content
and state of fluids; the atmosphere and the water that are bound to the solid mass by gravity.
The state of the fluids allow the creation of two distinct life supporting layers; the biosphere
and the hydrosphere.
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The sources of heat energy the earth is subjected to regulate the environmental conditions that
exist in the two life supporting layers of the earth in accordance to the laws of
Thermodynamics and the Conservation of Matter and Energy. Each of the layers has a
reserve of energy that maintains the environmental conditions of the respective layer. The
earth adds or subtracts energy in its reserves from all its energy sources depending on
whether the 150MY Solar Cycle trend is taking it either on a cooling or warming path.
Global warming, climate change and the alterations to the earth’s habitats are all subject to
sources of energy that abide strictly to the Laws of Thermodynamics. They apply particularly
to an earth structure that can be viewed as an open system with variable layer apertures. The
methods in which the laws apply to the heat energy in the earth system persist as the energy
strives to reach equilibrium with the universe through entropy.
A simplicity in the concept of thermodynamics was found in the concluding remarks in the
Encyclopaedia Britannica’s article by G. W. F. Drake (R4.01) who wrote:
“The 20th-century English scientist C.P. Snow explained the first three laws of
thermodynamics, respectively, as:
1. You cannot win (i.e., one cannot get something for nothing, because of the
conservation of matter and energy).
2. You cannot break even (i.e., one cannot return to the same energy state, because
entropy, or disorder, always increases).
3. You cannot get out of the game (i.e., absolute zero is unattainable because no
perfectly pure substance exists).”
These explanations are observed throughout this discussion.
4.2 – The Earth’s heat sources and heat capture mechanisms
Several aspects of the earth’s properties have to be considered when investigating the sources
of heat that create the climate conditions and environments that exist around the earth.
The natural heat sources each have their impact on the land and oceans of the earth. They
drive the hydrologic cycle, the heat content of the oceans, the average global temperature and
the atmospheric transfer of heat energy to space.
4.2.1 - Insolation
The sun is earth’s primary source of heat. It provides a consistent amount of energy that
maintains life supporting conditions on the earth. It does this in conjunction with earth’s
primary properties of atmosphere, water and land. There are two (2) components of the
earth’s properties that contribute to the variations in the irradiation as it makes its way to the
surface:
The thickness of the atmosphere it has to travel through.
Earth’s obliquity.
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The earth’s obliquity is particularly important. During the passage of an orbit of the sun the
earth’s obliquity changes the point of the earth that is on the plane of the ecliptic.
Only at equinox does the sun shine equally on the northern and southern hemispheres as it
oscillates between today’s 23.5° angle of obliquity. The equinox provides each hemisphere
with identical day/night timing and a level of irradiation that only differs by the small change
in distance between the sun and the earth between the autumnal and vernal equinoxes. As the
earth tilts about its angle of obliquity it alternately exposes the hemispheres to the direct
incidence of the sun’s irradiation. The action causing each hemisphere’s opposite change in
seasons.
The earth’s obliquity also has a considerable effect on the Polar Regions. The further up the
latitudes the less is the intensity of the insolation that reaches the surface of the earth.
Currently the Polar Regions begin at a latitude of 66.5°. The 66.5° latitude receives about
40% of the warmth of the sun’s irradiation at equinox, decreasing to 0% at 90° latitude. The
Polar Regions do not have a 24 hour day/night cycle of varying daylight and night-time hours
but long periods of night followed by long periods of day. The earth’s axial tilt amplifies the
Polar Regions’ lack of insolation during the winter season, when no insolation strikes the
surface, and magnifies it during the summer season when the sun shines constantly.
The reduction in insolation as latitudes climb from the equator to the Poles is in accordance to
the Lambert and Beer Law (R4.02). The law defines the way the two (2) following aspects of
the earth cause the sun’s irradiation to reduce:
1. The atmosphere absorbs and reflects the irradiation on its way to the surface in
accordance to the distance the irradiation has to travel to get to the surface.
2. The greater the angle of incidence at any one point on the earth formed by the angle
of obliquity and the plane of the ecliptic becomes, the greater is the depth of the
atmosphere the irradiation has to travel through to reach the earth’s surface.
Figure 4.1shows the way the irradiance intensity changes the further it has to travel to reach
the earth’s surface.
The indication of axial tilt on Figure 4
shows the times when the Polar Regions
are either subject to continuous day or
night conditions.
The conditions prevalent at the Polar
Regions work to both advance the earth
into a warm state during periods of global
warming and into a cold state, deeper
towards ice age conditions, during periods
of global cooling.
The heat transfer mechanisms driving the
local temperature of the Polar Regions are
continuously in operation.
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4.2.2 - Ocean currents
The hydrologic cycle that applies about the earth manifests itself as a regional energy capture
and inter-regional energy transfer mechanism. The equatorial regions receive considerably
more of the sun’s heat compared to the Polar Regions. Insolation that strikes the oceans’
surface penetrates into the water and warms it considerably more at the equatorial regions
than at the Polar Regions.
The heat differential between the Polar and the equatorial regions form massive ocean
currents that convey heat captured in the equatorial waters to the cooler Polar oceans. This
action benefits both the Polar Regions and land adjacent to the warm ocean currents.
The mechanism reduces the speed of advance of global warming while the earth is in the
grips of ice age conditions as part of the heat delivered is used to melt sea ice.
4.2.3 – Geothermal heat
The earth’s internally generated heat flux dissipates through the mantle into the earth’s crust,
ocean waters, and atmosphere and into space throughout the surface of the earth’s sphere in a
continuous process. It is the earth’s secondary heat source.
Note that insolation is the primary source of warming of the oceans’ surface and the
principle source of the epipelagic zone’s heat content, as discussed later.
According to the KamLAND Collaboration in their 2011 article; Partial radiogenic heat
model for Earth revealed by geoneutrino measurements (R4.03), the heat flux transmitted from
below the earth’s crust was determined to be 44.2+/- 1.0TW (or 1.395 x 1021 +/- 3.156 x 1017
joules p.a.).
The transmission of the heat energy from its source to the earth’s surface is measured and
referred to as the geothermal gradient
as shown in Figure 4.2. The gradient
temperature of the earth increases in
land, on average, by 25°C for each
kilometre below the surface
according to J.M.K.C. Donev et al.
(2019) in their article; Geothermal
gradient (R4.04) when measured from
the surface to the base of the
lithosphere.
The heat generated at the earth’s core
and in the mantle makes its way to
the surface creating an additional
heat source that applies to the surface of the earth. In the absence of any obstruction the heat
enters the atmosphere and makes its way to space. However, there are obstructions as
discussed later.
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4.2.4 - The atmosphere
NASA’s Earth Fact Sheet, 2021 (R4.05) describes the atmospheric composition (by volume, dry
air) to be:
78.08% Nitrogen
20.95% Oxygen
And by ppm:
o 9340 Argon
o 415
Carbon dioxide
o 18.18 Neon
o 5.24 Helium
o 1.7
Methane
o 1.14 Krypton
o 0.55 Hydrogen
Water content is highly variable and typically makes up about 1%.
Figure 4.3 shows that the density of the atmosphere thins the further it is from the earth and
forms into 5 distinct layers, each layer having
particular properties. They have a defined
termination boundary separating them. For
example, the Troposphere terminates at the
Tropopause and the Stratosphere terminates at the
Stratopause. The creation and function of the
boundaries are discussed in a later section of this
article.
The names and “thickness” of each layer are:
The Troposphere - The layer, 7 to 20km thick,
closest to the earth’s surface.
The Stratosphere – The layer that begins at the
boundary with the Troposphere and extends to
about 50km above the earth’s surface.
The Mesosphere – The layer that begins at the
boundary with the Stratosphere and extends to
about 85 to 90km above the earth’s surface.
The Thermosphere – The layer that begins at the
boundary with the Mesosphere and extends to
heights from about 500 to 1000km above the earth’s surface. Within the
Thermosphere there is a layer of ionised gases called the Ionosphere.
The Exosphere – The layer that begins at the boundary of the Thermosphere and
merges into space.
The Troposphere contains about 50% of the gases that make up the earth’s atmosphere and
nearly all the water vapour and dust that enters the atmosphere. Clouds form principally in
the Troposphere. Life is supported by the properties of the Troposphere in an area about the
surface of the earth defined as the biosphere.
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4.2.5 - The epipelagic zone and the thermocline
The oceans cover an area of 71% of the earth’s crust. Hence, based on the KamLAND data,
1.00 x 1021 joules of the earth’s internal heat flux is delivered to the ocean floor.
Note: The value of the emitted heat based on the KamLAND data is a guide. The determined
value of total annual emissions of the earth’s internal flux is discussed later.
The constant release of the earth’s emitted heat into the oceans is the reason why:
The temperature of the water at the oceans’ floor is in the range of near 1 to 4°C.
The water in the ocean depths is not a solid block of ice.
The temperature of the water below the thermocline varies little within the noted
range wherever it is measured, lowering the closer it is measured to the ocean floor.
The principle heat capturing and retention components of the oceans are the epipelagic layer
and the thermocline. The epipelagic layer can extend from sea-level to 200m below sea-level
(generally in the range 100 to 200m in the open ocean at mid-latitudes) and the thermocline
varies in depth from the base of the epipelagic layer to about 1000m below sea-level. This
phenomenon is described in chapter 6.2, Temperature, of the book by P. Webb; “Introduction
to Oceanography” (R4.06).
Both the epipelagic and the thermocline layers behave in accordance to the Laws of
Thermodynamics and in accordance to having four (4) sources of heat energy being injected
into them:
Two (2) directly into the epipelagic layer (insolation and heat captured by the
hydrologic cycle).
Two (2) into the thermocline (transfer of heat from the epipelagic layer and rising
geothermal heat).
The variation in the depth of the epipelagic zone and the thermocline is predominantly noted
in the seas at mid-latitudes that have an insolation variability based on the earth’s changing
angle of obliquity throughout the year.
The hydrologic cycle is one source of heat energy transfer into the epipelagic layer. The
hydrologic cycle gathers:
The sun’s heat energy absorbed by the atmosphere as the sun’s irradiation passes
through it.
The sun’s heat transferred into the land and the heat that is created on the earth’s
surface; a significant part of which is the heat released from the combustion of
potential energy sources by humans.
There are several natural events that create small quantities of heat that permeates into the
earth’s atmosphere and land, such as decomposition of plants and animals, forest fires and
random releases of the earth’s internal heat from surface volcanic activity.
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The temperature of the epipelagic layer is higher than the temperature of the thermocline. The
temperature differential prevents the thermocline from transferring its gathered geothermal
heat into the epipelagic layer until the epipelagic layer loses some of its heat and is able to
absorb the heat content of the thermocline; a situation particularly evident at tropical regions.
Figure 4.4 from P. Webb’s book shows the typical open ocean profile. The diagram indicates
the dimensions of the mixed layer (the epipelagic)
and the thermocline in a typical open ocean profile
where the surface water temperature is about 18°C.
The water temperature lowers the further it is
measured up the latitudes.
As the intensity of the insolation changes at any
particular latitude (and as earth transitions through
the seasons) so does the ability of the epipelagic
zone to maintain a constant heat content. The lesser
the intensity of the sun’s insolation the cooler the
epipelagic layer becomes. The epipelagic layer has
the greatest temperature variability. Its change in
temperature causes a change in the temperature of
the thermocline layer as more of the heat in the thermocline layer convects into the epipelagic
until equilibrium is reached. The cooler the epipelagic layer becomes, the thicker the
thermocline layer becomes as it absorbs heat from the layer below it. The thermocline is in
receipt of the geothermal heat that may or may not be transferred to the epipelagic layer
depending on each of the layers temperature.
Figure 4.5, also from P. Webb’s book, shows the typical open ocean summer/winter
thermocline layer thickness change.
As the seasons change the amount of energy that any
one point on the earth’s surface receives from the
sun changes. The sun delivers less heat into the
oceans during their respective winter period.
As the heat delivered to the epipelagic layer reduces
(and the temperature of the atmosphere reduces) heat
in the epipelagic layer is convected into the
atmosphere now colder than it (like it does at night
but with a higher draw-off of heat during the winter
period).
When the epipelagic layer cools it draws the heat
contained in the thermocline. The thermocline layer
still contains heat that is protected by the epipelagic
layer that is cooling from the top down and partly
replenished by the receipt of its daily dose of insolation. What changes is the temperature of
the barrier between the epipelagic and the thermocline layers and the rate of escape of the
heat from the thermocline into the epipelagic layer.
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The process, described in Figure 4.6, shows the contraction and expansion of the epipelagic
and thermocline layers in the open
ocean at mid-latitudes as the seasons
change from summer to winter.
The properties that influence the
changes are the intensity of the
insolation and the volumes of
evaporation and precipitation.
The geothermal heat rising to the
surface is considered to be at a
constant level in this example. The
amount of geothermal heat absorbed
by the thermocline depends on the temperature that the thermocline is taken down to.
The escape of geothermal heat rising to the ocean surface, and continuing into space, is
impacted by the thermodynamic forces that alter the heat content of the epipelagic layer.
The variable intensity of the insolation also alters the heat content of the epipelagic layer.
This action modifies the rate of escape of the heat from the thermocline into the epipelagic
layer. The greater the intensity of insolation the greater is the amount of heat captured by the
epipelagic layer and the depth that it reaches. The thermocline gains heat and rises in the
ocean waters pushed up by the cooler water below as the temperature between the two
increases.
A similar process occurs on land but the land does not have the heat retention properties of
the oceans’ waters and loses its heat very quickly once the strength of the insolation
diminishes on a change of season from summer to winter in a proportion equal to the amount
of ground water that is retained in the land.
In effect the epipelagic and the thermocline layers act as barriers to the rising geothermal
heat. They slow down the release of the heat to space. However, the epipelagic and the
thermocline layers are not perfect insulators; although their thermodynamic properties and
associations with heat sources induce entropy. The sources of heat, and that,
1. the thermocline is sandwiched between the colder water below it, and that
2. the epipelagic layer is the recipient of the higher intensity solar irradiation,
causes the changing heat content that controls the release of the geothermal heat to space.
The geothermal heat flow into the atmosphere and into space is shown from being a continual
process, as occurs at the Polar Regions, to a minimal flow as occurs in the Tropics. This
action explains why the rate of ocean heat capture is at the level that it has been measured
over the last decade.
The differences in the epipelagic and thermocline layers between the latitude conditions
noted on Figure 4.7 are also from P. Webb’s book.
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The insulating and heat capture and transfer
properties that the epipelagic and thermocline layers
exhibit ensures that the geothermal heat will maintain
the temperature of the water below them at a constant
level dependent on the amount of heat that is
delivered to the epipelagic layer by the sun and any
anthropogenic or natural activities that result in
emitted heat introduced into the natural system
additional to the sun’s irradiation or earth’s
geothermal heat.
Geothermal heat travels through the oceans and is
dissipated into space if the level of insolation
diminishes in a cooling trend. This will cause a
constriction of the epipelagic layer at lower latitudes
hence providing a greater area of the sea to respond
to the varying insolation in a manner that currently
applies at the Polar Regions.
4.3 – Earth Energy Imbalance (EEI)
In the 2021 article by N. G. Loeb et al, titled “Satellite and Ocean Data Reveal Marked
Increase in Earth’s Heating Rate” (R4.07), it states:
“Climate is determined by how much of the sun's energy the Earth absorbs and how much
energy Earth sheds through emission of thermal infrared radiation. Their sum determines
whether Earth heats up or cools down.”
The explanation for the rise in the heat content of the oceans is centred on the irradiation
received from the sun and various properties of the earth that manage the amount of the
irradiation that is emitted back to space. The control applied to the amount of heat retained by
the earth and absorbed by the oceans is based on the monitoring of the outgoing radiation
from the earth as measured by earth satellites, in particular the “Clouds and the Earth’s
Radiant Energy System’s (CERES)” data.
K. von Schuckmann et al described, in their 2020 article, Heat stored in the Earth system:
where does the energy go? (R4.08) that the Earth energy imbalance (EEI) was in the order of
0.87 W/m² (distributed per square metre) during the period 2010 to 2018, and only
increasing. The energy captured in the oceans in 2019 was measured by Cheng et al (R4.09a) at
2.28x1022 joule as reported by Cosmos Magazine’s N. Carne (R4.09b).
The cause of these findings has to be explained as the base data states that more energy is
dissipated by earth into space than is delivered by the sun and intercepted by the earth. This
represents the imbalance in the energy equation.
There are two ways the amount of energy dissipated by the earth can be less than the amount
of energy gathered from the sun. They are:
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1. That the earth is in a warming trend where the irradiation energy received is less than
the energy dissipated from the ocean heat store.
2. That the energy dissipated into space is the lesser portion of the total of the energy
received from the sun added to other sources of energy generated on the earth less any
energy that is consumed (e.g. applied in melting of the Polar ice).
The first option is likely as the earth has been on a warming trend for the last 2.1 million
years. The ocean heat content (OHC) has been increasing steadily since then.
Option 2 was also investigated for its potential to both increase the OHC by 2.28x1022 joules
of energy (in 2019), and for the earth to dissipate into space an amount of energy less than the
amount received from the sun while a residual amount of energy is advancing the rate of
global warming at the significant anomaly rate measured by several institutions.
The value of the energy imbalance is detailed in Table 4.1.
Table 4.1 – 2019 data on Incoming and Outgoing Irradiation
On the plane of
the ecliptic
Distributed per
square metre
Energy
Imbalance
Sun Incoming
Irradiation
1361.5 W/m²
Earth Outgoing
Irradiation
1357.9 W/m²
Difference
340.4 W/m²
339.5 W/m²
-0.9 W/m²
5.50x1024 Joules
Incoming
5.485x1024 Joules
Outgoing
-1.454x1022 Joules
Net Outgoing
-3.6 W/m²
The fact that the incoming energy is greater than the outgoing energy, and that the earth is in
a phase of warming at a rate that is unprecedented in earth’s geologic history states that the
earth energy system is subjected to other sources of energy, the magnitude of which has to be
determined. The difference in the energy imbalance of -1.454x1022 joules net outgoing,
considered in terms of the rate that global warming is advancing, identifies the sun as being
only one of the sources of heat energy that applies to the earth.
4.3.1 – Sources of heat energy that impact EEI
The earth has several sources of energy that contribute to the content of heat energy measured
in the biosphere’s oceans, land and atmosphere.
They include:
Irradiation from the sun.
Geothermal heat.
Anthropogenic heat energy generation activities e.g. combustion of fossil fuels,
nuclear fission reactions, exothermic chemical reactions such as munitions and
specific non-carbon based fuels for propulsion.
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Natural instances of combustion, e.g. forest fires, molecular conversions (e.g. methane
to carbon dioxide and water when combusted in the presence of oxygen e.g. possible
permafrost pits of methane burning in Siberia.
Deforestation and land clearing activities.
Surface volcanic and tectonic expulsions of mantle heat.
Sub-surface volcanic and tectonic expulsions of mantle heat.
Natural life uptake and releases of heat energy, e.g. photosynthesis, endothermy,
decomposition, and thermogenesis.
Cosmic events e.g. the heat energy generated by cosmic and man-made matter as it
travels to the earth’s surface through the atmosphere.
The biosphere also experiences:
The release of heat energy to space (outgoing SW and LW radiation):
The persistent outgoing radiation that is a function of incoming irradiation plus any
additional energy in excess of what the biosphere can accommodate.
The consumption of heat energy within the earth’s biosphere, in particular:
The heat energy consumed annually as sea ice and glacial ice deposits are melted.
The EEI quantifies the amount of energy that has to be added to the earth’s total incoming
and outgoing energy difference to balance the energy equation and result in the current
measured increase in global warming. The balancing of the equation is currently achieved by
determining a value of radiative forcing.
Also necessary to take into consideration when assessing the EEI is the consumption of the
sun’s insolation by the processes of life that utilise the sun’s energy to create life matter. This
aspect relates to the above categories:
“Natural instances of combustion”,
“Natural life releases of heat” and
“Anthropogenic activities” aspects of which represent human activities associated
with the use of stored energy that can be released by combustion and fission.
These three (3) categories represent the earth as an entity that has life properties that capture
the sun’s heat and recycles it at volumes in accordance to the total biomass at any one
instance in time. The amount of the sun’s energy held captive in living life matter is given
back on the death of that life by one of several evolved recycling processes. As such, the
energy gain/loss is a deviation from a state of energy equilibrium unless circumstances alter
environmental conditions that either create or deter the opportunity for growth.
4.3.2 – Glaciation and heat energy absorption
The current presence of glaciation is a controlling factor on the rate the earth is warming. The
ice absorbs part of the heat energy that would otherwise be shown in the value of the EEI that
needs to be balanced.
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The current rate of sea ice melt has been measured by the NASA Earth Science
Communications Team (R4.10) at 276 billion metric tons per annum in the Arctic and 152
billion metric tons per annum in the Antarctic.
The total of the Polar Regions sea ice melt requires 1.43x1020 joules of heat based on ice
needing 334 joules per gram to melt as per the article by Todd Helmenstine (R4.11).
4.3.3 - Energy sources that impacted the earth in 2019
The detailing of the individual components of the earth energy system discussed in this
section is concerned with the energy contributed by each of the energy sources in 2019.
It includes the ocean heat energy added to the oceans as measured by Cheng et al (R4.09a) and
the amount of heat energy emitted into space as determined by K. von Schuckmann (R4.08)
from the CERES data. Other energy contributions to the earth energy system were
determined from the sources with appended reference numbers.
Five (5) measured categories of heat energy sources were tabled and summed to determine
the total amount of known heat energy that affected the earth energy system in 2019. The
categories and their values are shown in Table 4.2
Table 4.2 – Calculating the Earth Energy Imbalance (EEI) in 2019
Sources of Earth Energy Gains and Losses
Incoming irradiation from the sun (R4.12)
Primary energy derived from potential energy sources (R4.13)
Determined Geothermal Energy – KamLAND group (R4.03)
Energy needed to melt sea ice in the Arctic and Antarctic (R4.11)
Additional ocean heat content as measured by Cheng et al. (R4.09a)
Total earth energy system gains during 2019 (1)
Earth energy system losses - outgoing radiation (2)
Difference between earth energy system gains and losses (3)
Joules
5.50x1024
5.73x1020
1.40x1021
1.43x1020
2.28x1022
5.53x1024
5.49x1024
1.04x1022
Table 4.2 shows that in 2019 the energy (3) required to balance the total earth energy is equal
to the sum of the total earth energy sources (1) less the outgoing radiation (2). The unknown
factors that contribute to the calculated 1.04x1022 joules of heat energy to balance the EEI
equation must come from a combination of earth based sources as noted previously.
The difference in the “gains and losses” in the Total Energy Gains (3) represents 18 times the
amount of primary energy produced by humans from potential energy sources noting that:
Natural instances of combustion, forest fires, deforestation and land clearing
represents between 5 and 6% of the total of the carbon dioxide emitted by the
combustion of fossil fuels in 2019.
This is a conservative measure based on the Australian Government’s 2019/2020
assessment of carbon dioxide emissions from the Australian bushfires contributing
an estimated 830 Mtonne (R4.14), the total of all other forest fires around the world
making the same contribution and forest land clearing and burn-off contributing a
further 1%. The value of the total of carbon dioxide emissions for 2019, 36.7 billion
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Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/ 7/ 2022
tonnes, was obtained from Our World in Data (R4.15). As carbon dioxide emissions
are proportionate to primary heat generation the additional energy contribution by
this category would be very small in comparison to the value shown in Table 4.2 (3).
Exothermic chemical reactions, cosmic events, equilibrium factors regarding natural
life uptake and volcanic activity, both terrestrial and sub-surface would also be
minor contributors.
The potential candidate for most of the additional heat energy summed in the earth energy
system in 2019 is the earth itself in the form of geothermal energy released from the mantle
into the sea floor. The geothermal energy in this category is additional to the geothermal
energy determined by the KamLAND group. The determined geothermal heat injected into
the earth energy system is shown in Table 4.3.
Table 4.3 – Calculating the Energy gains from geothermal sources in 2019
Sources
Difference between earth energy system gains and losses
Determined Geothermal Energy by the KamLAND group
Energy needed to melt sea ice in the Arctic and Antarctic
Additional Ocean heat content as measured by Cheng et al.
Total calculated energy added to the earth energy system
Less: Primary energy derived from potential energy sources
2019 Additional earth energy gains from geothermal sources
Joules
-1.04x1022
1.40x1021
1.43x1020
2.28x1022
2.43x1022
5.73x1020
2.41x1022
The data states that the total geothermal heat released by the mantle into the earth’s surface
layers was equal to 2.41x1022 joules in 2019.
The 2019 additional geothermal energy noted in Table 4.3, a persistent variable permeation
of the mantle’s heat energy into the oceans, averaged about 1.72x105 joules/day/m2
(1.97W/m2 of power) throughout the 71% of the surface area of the earth the sea covers. It
suggests that mantle heat permeates into the sea floor as a regular feature and at a variable
rate. Heat is added or subtracted to a nominal released amount as tectonic activity moves the
continental plates and opens and closes heat ejection apertures throughout the ocean floor,
possibly at a rate of greater intensity about the ocean ridges and at the junctions of the
oceanic and continental plates. The heat released into the oceans by geothermal transfer,
together with warm ocean currents, flows heat throughout the oceans.
4.3.4 - Release of geothermal heat into the ocean
The information reported by Cheng et al provided a glimpse of the heat energy added to the
total heat content particularly in the latter years of the 2010 to 2020 decade. However, it was
important to understand the change in the OHC in 2019 in order to be able to get a grasp of
the components that add and subtract from the heat energy content of the earth. It became a
way of explaining why the outgoing irradiation measured by CERES in 2019 was greater
than the incoming irradiation from the sun while at the same time the earth is on a warming
path. It proved that the sun is not the only energy contributor and that there are properties of
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the earth that act in unison with the sun’s irradiation of a magnitude of heat greater than
primary energy production.
A further investigation was undertaken to identify the rates of change in the release of
geothermal heat into the ocean. The purpose was to identify the consistency of the increase in
the OHC for a longer period of time than the last 10 years. This investigation sourced data on
the Global OHC, 0 to 2,000m, (measured by NOAA (R4.16)) shown as the insert on Figure 4.8.
The rate of change in
global OHC p.a. (0 to
2000 m) calculated
from Figure 4.8 was
based on regions of the
curve that
accommodated a
simple line of best fit.
(Note that Cheng et
al’s 2019 data on OHC
mentioned previously
was for the whole of the
ocean not just the top
2000m.)
The results of the
assessment showed that there were periods, numbered 1 to 5, which could be shown to have
distinct rates of change in global OHC, 0 to 2,000m, during the period 1962 to 2020.
The results of the assessment of the NOAA Ocean Heat data is as per Table 4.4.
Table 4.4 – Rates of change in OHC 0 to 2,000m, 1962 to 2020
Time
1962 to 1966
1966 to 1968
1968 to 1975
1975 to 1990
1991 to 2020
2010 to 2020
Increased heat
content
-4.96x1022 joules
1.22x1021 joules
7.16x1022 joules
3.18x1022 joules
2.52x1023 joules
1.09x1023 joules
Number of years
4.03
1.74
7.15
15.69
28.82
10
Average Rate of
change p.a.
-1.23x1022 joules
7.05x1020 joules
1.00x1022 joules
2.03x1021 joules
8.73x1021 joules
1.09x1022 joules
A sixth (6th) rate of change assessment, reported separately in Table 4.4, for the period 2010
to 2020 was also made as there appeared to be an upturn during the latter part of the decade,
offsetting a significant OHC loss early in the decade.
The conclusion from the rate of change assessment in Table 4.4 is that the earth releases its
internal heat energy into the sea floor at varying rates. Taken in combination with the CERES
outgoing radiation assessment for 2019, together with all other heat energy components that
add and subtract from the total energy, the data indicates that for each time period shown
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geothermal heat energy released at the sea floor is partly dissipated into space and the
remainder is stored in the ocean principally below the thermocline.
When the rate of change was negative, as is the case in the period 1962 to 1966, it indicates
that either no geothermal heat was released (an impossibility) or the ocean was caused to give
up a quantity of its OHC. A possible explanation of the loss of heat energy relates to the
nuclear testing activities that were being conducted post World War II as described in section
4.3.5 – The atomic age.
OHC data for the period 1900 to 1960 was not available. An estimate of the average
geothermal heat emitted into the biosphere was based on the movement of the average global
temperature in the periods 1900 to 1960 compared to 1960 to 2020 and the relativity between
the average global temperature increase and the 0 to 2,000m OHC for the time period 1960 to
2020 by the criteria shown in Figure 4.9.
The reasoning for adopting this method was that the rate of growth of the OHC seemed to
correlate to the rate of growth of the average global land and ocean surface temperature
anomaly. An assessment of the two growth figures indicated that the OHC increased at a rate
7% faster than the temperature anomaly.
An estimated average value for the geothermal heat emitted into the earth’s biosphere of
1.32x1022 joules p.a. during the period 1900 to 1960 was calculated by dividing the
temperature anomaly growth ratio into the 2019 additional earth energy gains from
geothermal sources (3.41x1022 joules) and multiplying the result by 1.07. The value
calculated is about 9 times greater than the KamLAND geothermal heat release findings, and
about 40% of the total geothermal heat determined in 2019.
4.3.5 – The atomic age
The intensity of the nuclear detonations during the early to mid-1960’s, and that they
occurred in the atmosphere and underwater, may have been the cause of the expulsion of
OHC, particularly in the 0 to 2,000m depth, as represented by the negative rate of change in
the years 1962 to 1966 (as per Table 4.4), and a return to normality beginning in the latter
part of 1966. Nuclear testing in the atmosphere and underwater lessened after 1964.
Prăvălie, R., wrote in his article of 2014 (R4.17): “…, countries like the United States, the
USSR, the United Kingdom, France, and China became nuclear powers during 1945–1964 ...
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During this period, a large number of nuclear tests were conducted in all global environments
(atmosphere, underground, and underwater)”. He further noted that the Limited Test Treaty
came into effect in 1963 but it was not signed by France and China who continued to test
nuclear devices in the atmosphere.
A graphical representation of nuclear testing events post World War II, indicating detonation
intensity of each event, is shown in the article “Nuclear Testing 1945 – Today (R4.18).
Following is a hypothesis based on the testing of atomic devices causing the negative OHC
trend. It centres about the frequency and intensity of underwater and atmospheric detonations
leading up to and including activities to the mid 1960’s.
A quantification of this phenomena is complex as the data is difficult to obtain. It is offered
as a possible explanation for the negative OHC trend 1962 to 1966, the rate of OHC warming
from 1968 to 1976, a period of quiescence to 1990, and an advanced rate of OHC gain from
then to today.
One objective of an analysis in the circumstances leading to the negative OHC trend would
be to determine the amount of heat dissipated into space. However, in the absence of an
outgoing radiation monitoring device like CERES and other methods of determining heat
capture and retention in the biosphere as available today, it is impossible to have measured
data that could support an analysis. Whether more or less than the heat content of the water,
the detonations and other factors that contribute to outgoing radiation into space can only be a
calculated assumption based on what the total energy at that time could have been.
Each detonation had an impact on a considerable area of water surface, to the depth the
detonation blast reached. A significant volume of water, together with its heat content, was
ejected into the atmosphere. The blast plume (the mushroom), together with the water vapour
it contained, allowed the heat of both the blast and the OHC to rapidly dissipate into space.
The functioning of the hydrologic cycle under such conditions would be limited. The short
timing associated with any one detonation would prevent the hydrologic cycle from capturing
the atmospheric heat content.
Furthermore, the absence of the epipelagic zone and the thermocline following an
underwater, and possibly an atmospheric detonation, leaves an opening for the geothermal
heat to transfer to the atmosphere as the colder water at the oceans’ depth rushed to the
surface and neutralised the epipelagic and thermocline layers. Geothermal heat transfer
through a cold water layer is described in section 4.4 of this article titled “The earth’s energy
management systems".
The data in Table 4.4 implies that the ocean and atmospheric detonations created the
opportunity for the heat held captive in the epipelagic zone and the thermocline, and the
rising geothermal heat, to escape into the atmosphere and into space at a rate that resulted in a
(negative) OHC rate of change equal to -1.23x1022 joules p.a. from 1962 to 1966. There is no
other reason for it to happen. The earth did not stop its release of geothermal heat because
humans wanted to test their atomic bombs and there was no event that absorbed that quantity
of heat from the ocean.
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Figure 4.10 compares the Global Surface Temperature Anomaly and OHC (0 to 2,000m)
from 1955 to 1980.
The graphs show a
similarity in the
trends of both data
sets and the
particular increase
and reduction in the
data elements about
the 1960 to 1965
years.
Both segments of
the graphs in Figure
4.10 also show that
from about 1965
onwards the rate of ocean warming began to increase, moderately at first, but then at a rate as
shown in Figure 4.8.
The correlation between the two (2) datasets suggests:
1. The consequence of the atomic detonations carried out in the ocean and the
atmosphere resulted in significant ocean heat losses.
2. There is a possibility that the force of the terrestrial, oceanic and atmospheric
detonations had an effect on the stability of the earth’s continental plates, oceanic
plates, ocean ridges, subduction and obduction zones thereby deteriorating the
bonding of the crustal matter and creating an opportunity for the earth’s internal heat
to increase in its leakage into the oceans’ floor. In this way geothermal heat
contributed to the steadily increasing rate of ocean heating since the late 1960’s.
3.
The atomic events represent a cause for total OHC increasing from an estimated
8.5x1021 joules p.a., on average, during 1900 to 1960 to 2.28x1022 joules in 2019
(about 2.7 times p.a. more in 2019 than in 1900 to 1960).
4.3.6 – Ocean heat accumulation
The water in the oceans stores heat energy that has been directed into it by the sun’s
insolation, the hydrologic cycle and geothermal heat. The sea floor is warmed by heat
conducted or vented into the ocean from the mantle. The 2021 rate of growth in the oceans’
heat content is in the order of 1.5x1022 joules p.a. according to L. Cheng et al in their 2022
article: “Another Record: Ocean Warming Continues through 2021 despite La Nina
Conditions” (R4.19).
The value of warmth added to the oceans is far greater than the amount of geothermal energy
said to be rising through the geothermal gradient or the residual delivered by the sun. This
presents itself as a quandary that, added to other questions on this matter, led to further
investigations into the imbalance in the earth’s input output energy content in an attempt to
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explain why the earth is warming if the stated energy imbalance indicates that more energy is
dissipated from the earth than is delivered by the sun, and where the heat came from that
increased OHC as reported by Cheng et al.
4.3.7 - Instantaneous evacuation of heat from the biosphere.
The observation from the negative rate of ocean warming that occurred between 1960 and
1964 infers that any intense short term expulsion of intense heat into the atmosphere, such as
a volcanic release of geothermal energy or the detonation of an atomic device, will allow
entropy to quickly take control and distribute the emitted heat into the Troposphere.
That action promptly changes the heat relativity between the layers of the atmosphere and
allows the excessive heat to pass directly into space. There would be no opportunity for the
prevalent biospheric heat management mechanisms associated with the hydrologic cycle and
the ocean heat store to recapture the heat.
The emission of heat in both a volcanic eruption and nuclear detonation creates intense heat
for a relative short time. The intensity of the heat would disrupt the thermodynamic barriers
set up by the incoming irradiation and the biospheric content of released heat. The released
heat would be promptly evacuated into the cooler Stratosphere and consequently through the
atmospheric layers to space as each of their boundaries buckle to the sudden upsurge in each
layer’s heat content.
The hydrologic cycle would not be able to capture the instantaneous release of heat from
these sources.
The hydrologic cycle is a continuous process that, depending on the average global
temperature and latitude, repeats in less than 12 days. There would not be time for the volume
of water vapour or precipitation in the atmosphere to gather all the heat that is emitted by
these localised events that may last from minutes to hours. Any heat gathered would have a
negligible effect on the overall heat content of the earth. Even a percolating volcanic event
may not have sufficient heat content to cause any significant disruption to the average global
temperature.
4.4 – The earth’s energy management systems
The ocean heat accumulation data provided by Cheng et al represented a significant increase
in the earth’s heat accumulation but it appeared not to have an impact on the earth’s average
global temperature of the magnitude expected with the amount of heat retained.
The rate of advance of an average warming trend, as described in the article Variability of the
Total Solar Irradiance (R4.20), states that the earth needs to retain a small part of the incoming
insolation in order to proceed in a warming trend. The amount of heat energy necessary to
advance a warming trend at 1.3°C/MYs was estimated to be 1.14x1016 joules p.a. On this
basis it suggests that the earth should be adding about 1.5x1020 joules p.a. to maintain the rate
of warming of 0.017°C p.a. reported by NOAA in their Global Climate Report – Annual
2016 (R4.21).
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However, what the 2019 OHC measurement by Cheng et al is stating is that the amount of
heat energy added to the oceans is about 150 times more than the amount necessary to
maintain the rate of warming of 0.017°C p.a. This data makes the measurements of the
incoming and outgoing thermal radiation measured by CERES even more confusing.
The assessment of the incoming and outgoing radiation (in Table 4.3) showed that, apart from
the anthropogenic energy created by the combustion or consumption of potential energy
materials, there must have been an additional 2.41x1022 joules of energy added to the earth
energy system to balance the total energy in 2019. The additional energy must be principally
supplied by the earth’s internal heat generating mechanism as it is the only other source that
could generate heat of this magnitude.
The need to balance the earth energy system to the value previously noted and the
determination of the magnitude of the geothermal energy released from the mantle raised the
question: “How can the earth emit considerable geothermal energy and it not have a strong
bearing on the average global temperature?”
4.4.1 – Earth’s energy processing environments
An examination of ocean heat accumulation, its sources, the amount of heat dissipated into
space and the rate of global warming introduced the idea that the earth had two (2) energy
processing environments, driven by two (2) opposing heat energy sources, and a layer of
ocean that separated them as shown in Figure 4.11.
The primary heat source is the sun. It delivers to
the earth 5.5x1024 joules of energy each year.
The earth’s rotation about its axis causes the sun
to strike any one point on the surface during the
day but it is absent from that particular point at
night. This allows the point affected by the sun to
warm and cool in the 24 hour day/night cycle.
Both the warming and cooling cycle apply
themselves in variable intensities at that one point
from the start of the day/night, to a peak point
during the day/night and to the conclusion of the
day/night cycle.
The earth’s obliquity also comes into play as
mentioned earlier.
Geothermal heat is a generally constant flow from
the earth’s core and mantle although it may vary one year to the next subject to movements of
the earth’s crustal mass.
The 700m thick top ocean layer contains, according NOAA (R4.16), about 74% of the heat
content of the top 2000m of the ocean as shown in Figure 4.12.
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This layer, considered
to be the epipelagic and
thermocline layers,
serves as the earth’s
“biosphere energy
processing
environments separator
layer” where one
energy processing
environment is above
sea level (comprising
the energy sources of
insolation,
anthropogenic energy, geothermal energy, any other energy released as heat into this
environment and the hydrologic cycle as the harvester of heat energy) and the other is the
mass of water below the sea’s thermocline layer (comprising of geothermal energy, insolation
that reaches the sub-thermocline layer, and any other energy released as heat into this
environment).
The proposed energy processing environments above and below the ocean separation layer
work in accordance to the Laws of Thermodynamics and result in:
The reported measurements of the incoming and outgoing radiation imbalance by
CERES.
The significantly increasing ocean heat content measured by NOAA and Cheng et al.
Create life supportive habitats above and below the ocean separation layer.
The sources of energy, and the methods the energy is gathered, results in the warming of the
separation layer of the oceans i.e. the epipelagic zone and the thermocline. The separation
layer supports/maintains the earth’s land-ocean surface average global temperature and
causes alterations to regional climate conditions.
The epipelagic layer captures the bulk of the directly incoming heat energy from insolation
that strikes the oceans’ surface and also the heat energy harvested from the atmosphere and
land and delivered to the oceans by the hydrologic cycle. The oceans expel some of their heat
energy in the form of evaporation; the first part of the hydrologic cycle. The atmosphere acts,
apart as the absorber of incoming irradiation and first release of the absorbed heat, as the
biosphere’s stabilising medium and distributor of accumulated water vapour and its heat
content. It is the biospheric mediator.
The way the two (2) energy environments interact with the separation layer is shown in
Figure 4.13. The epipelagic layer mixes its heat content throughout its depth and into the
thermocline layer.
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The epipelagic layer
will always be warmer
than the layers below it.
It shares its retained
heat only with the
thermocline layer in a
heat exchange system
that causes the
epipelagic and
thermocline layers to
change in thickness in
the passage of the
season as described in
section 4.2.5 of this
article titled “The
epipelagic zone and the
thermocline” and in
(R4.06)
reference to P. Webb’s
data. The temperature at the bottom of the thermocline layer
will always be equal to the temperature of the top of the mass of water below it.
The formation of the thermodynamic barrier, when two opposing sources of energy interact,
is shown in Figure 4.14. Geothermal heat rising from the sea floor flows upwards through the
oceans’ water transferring the heat into its surroundings
in a hap-hazard chain reaction (entropy) until it reaches
the bottom of the thermocline.
Insolation reaching the surface of the earth transfers its
heat into the epipelagic layer by wind, wave and the
hap-hazard chain reaction of entropy until it reaches the
beginning of the thermocline.
The epipelagic layer continuously interacts with the
thermocline as it heats and cools adding or subtracting
heat from the thermocline.
Entropy adjusts the distributed heat content into the
thermocline and then adjusts the heat transfer with the
deep ocean layer beneath it.
When the temperature at the junction of the thermocline
and the deep ocean layer (where the two (2) opposing
heat sources meet) reach equilibrium, it stabilises the separation layer by creating a
thermodynamic barrier between the base of the thermocline and the top of the deep ocean
beneath it.
In this situation the rising geothermal heat will be stopped from rising further by the
thermodynamic barrier until the temperature of the thermocline lowers below that of the mass
of water immediately below it.
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The geothermal heat in the mass of water below the thermocline distributes itself amongst the
layers of water below it. This action will eventually elevate the heat content of the total mass
of water in the ocean below the thermocline as the warmer upper layer distributes itself into
the cooler layers below it in its attempt to achieve equilibrium.
Note: The thermocline has heat transferred into it by the epipelagic layer. It is warmer than
the water warmed by the geothermal energy. A colder matter can’t convect its heat into a
warmer matter (the 2nd Law of Thermodynamics) so the geothermal heat is forced to disperse
into the cooler mass of water beneath the thermocline (in accordance to the Law of
Conservation of Matter and Energy) as it rises from the sea floor.
At the thermodynamic barrier the transfer of heat between the thermocline and the mass of
deep ocean water below it stops unless there is a heat imbalance between one layer and the
other. This aspect initiates a perpetual process where the depth of the epipelagic layer and the
thermocline changes in accordance to the day/night cycle and the season, with repeatability,
encroaching into, or retreating from, the bulk ocean below it.
4.4.2 - How geothermal heat contributes to global warming
The ocean’s management of all its sources that direct heat to the biosphere is a perpetual
process with variability based on seasons, the earth’s angle of obliquity, levels of heat
emissions from both the sun and the mantle of the earth and the several other sources
mentioned previously, including variations caused by weather events. The transfer of heat
alters every day on every point on the surface of the earth.
The earth is in a perpetual program of warming and cooling. The exception is geothermal
heat emissions into the earth’s surface layers. Geothermal heat, potentially at varying rates, is
continuously convected or emitted directly into the sea floor warming the ocean water
whether the surface of the earth is warming or cooling, is progressing through the seasons or
is experiencing the day/night cycle.
A day-by-day account of how changes in OHC alters the environment is conveyed by the
following general explanation of how the epipelagic zone, the thermocline and the deep
ocean waters react to the heat content that is added or subtracted from their mass.
In the following explanations the warmth gathered at the sea floor convects towards the
surface of the deep ocean.
In the absence of insolation:
The epipelagic zone dissipates heat into the cooler atmosphere.
The loss of heat in the epipelagic layer alters the dynamics of the epipelagic and
thermocline layers.
The lowering heat content of the epipelagic zone draws heat from the thermocline.
The thermocline begins to cool.
The heat status of the thermodynamic barrier between the thermocline and the deep
ocean water changes as the thermocline loses heat to the epipelagic zone.
Heat from the deep ocean permeates into the thermocline.
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The thermocline increases in depth as the heat of the base of the thermocline and the
top of the deep ocean reach a state of equilibrium.
The action lowers the thermodynamic barrier as the thermocline’s depth increases.
The depth of the epipelagic zone shrinks.
In the presence of insolation:
The epipelagic layer is gaining heat from the direct injection of insolation.
The warmth gathered at the sea floor permeates towards the surface of the deep ocean.
Heat is transported into the epipelagic zone by the hydrologic cycle.
The epipelagic zone transfers heat into the thermocline.
The depth of the epipelagic zone increases.
The thermocline warms.
The thermodynamic barrier between the thermocline and the deep ocean water
changes as the deep ocean water is colder than the water in the thermocline.
Heat in the thermocline transfers into the deep ocean water until equilibrium is
reached and initiates a thermodynamic barrier.
The depth of the thermocline shrinks.
When the geothermal heat increases in the presence of insolation:
The epipelagic layer is gaining heat from the direct injection of insolation.
The warmth gathered at the sea floor permeates towards the surface of the deep ocean.
Heat content greater than what established the thermodynamic barrier in place reaches
the base of the thermocline.
The heat alters the state of the thermodynamic barrier.
The heat transfers into the thermocline.
The additional heat in the thermocline disperses through the layer and interacts with
the heat at the base of the epipelagic zone.
Heat transfers into the epipelagic zone.
Equilibrium is reached between the thermocline and the deep ocean water.
The thermodynamic barrier between the two (2) establishes.
There is a net gain in heat content of the epipelagic zone and the thermocline.
The temperature of the thermodynamic barrier at the base of the separation layer is
elevated in accordance to the increased rate of release of geothermal heat.
The thermocline reduces in thickness and depth while the epipelagic zones increases
in depth.
The heat transferred into the separation layer remains until either the heat content
rising from the sea floor or the intensity of the insolation reduces.
Increasing quantities of geothermal heat add a portion of their annual heat to the separation
layer while reducing quantities of geothermal heat deduct a portion of the separation layer’s
heat. The amount of heat added or subtracted from the epipelagic layer is dependent on the
geothermal heat quantity.
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The remainder of the geothermal heat is either distributed within the deep ocean waters or
dissipated into space. The heat added to the epipelagic zone is further added to by heat
generated by other sources, such as anthropogenic activities.
Increases or decreases in the heat emitted by other sources cause a similar addition or
subtraction of heat from the epipelagic layer and have a similar subsequent impact on global
warming.
The total OHC is elevated by all the heat sources that terminate into the biosphere. Together
with OHC, the heat content of the land and atmosphere, promotes global warming.
4.4.3 – Heat gains and losses caused by the day/night cycle
The seasons cause the epipelagic layer to gain or lose its heat content. This affects both the
epipelagic and the thermocline layers. In summer the depth from the ocean surface to the
bottom of the thermocline is less than it is in winter. The movement of the two upper layers
of the oceans is a function of the heat transmitted into the oceans by insolation and the
hydrologic cycle. Their behaviour is also in accordance to the 2nd Law of Thermodynamics
and the Law of Conservation of Matter and Energy.
In summer the insolation striking the surface of the ocean intensifies. The epipelagic layer
gains heat content and increases in depth as the heat gathered from the sun penetrates deeper
into the water that was the top of the thermocline in winter. The top of the thermocline is lost
to the epipelagic layer.
The thermocline warms and the temperature differential between the thermodynamic barrier
and the cooler mass of water beneath it increases. The cooler layer below the thermocline
absorbs the heat in the lower portion of the thermocline. The exchange of heat continues until
a state of equilibrium is reached once more. The depth of the thermodynamic barrier is closer
to the ocean surface the warmer the epipelagic layer and the thermocline layer below it
becomes.
The reverse happens as the seasons change from summer to winter. The depth of the
epipelagic layer lessens and the thermocline layer increases as the heat content of the
separation layer is lost to the atmosphere and into space.
If the earth is in a cooling trend, and the separation layer cools to a temperature below the
temperature of the layer below the thermocline, the mass of water below the thermocline will
dissipate heat into the thermocline and reach the epipelagic layer. An event that will conclude
with the earth entering into ice age conditions of varying intensities, from a global freeze to
only affecting the South Polar Region, depending on the extent of the reduction in the sun’s
irradiation intensity.
The changing heat pattern of the earth’s surface during the period of one (1) rotation of the
earth about its axis at any one point on the earth’s surface at equinox is shown on Figure 4.15.
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Note that the day shortens as the
point on the earth approaches the
winter solstice and lengthens as it
approaches the summer solstice.
Hence the amount of irradiation
that any one point on the earth
receives on any one day is
constantly changing.
The insolation/dissipation graph
(A) on Figure 4.15 shows that the
heat that is received at any one
point during the day is dissipated at
night. There is a difference in the
amount of heat dissipated
depending on whether the earth is
following a warming trend or a
cooling trend.
When following a warming trend,
a portion of the heat is retained by
the ocean, whereas when following
a cooling trend, a portion of heat is surrendered by the ocean.
The Continental Plate and Open Ocean Outgoing LW and SW Radiation graph (B) have a
constant release of heat throughout the day and night if the ocean is warmer than the
atmosphere. However, little radiation is released during the day once the insolation strikes the
surface as the surface has to first have heat added to it until it reaches a point when the heat
content of the outgoing radiation is greater than the heat content of the incoming insolation
that strikes the surface. The heat content increases during the daylight period from dawn and
reaches a peak at a point in the afternoon prior to dusk. The surface then releases radiation
based on the difference in heat content between the atmosphere and the surface.
The intensity of the outgoing radiation increases as the atmosphere cools exhausting the
accumulated heat into space. At a point, the rush of outgoing radiation begins to slow down
as the surface cools and the temperature differential between the atmosphere and the surface
reduces until the sun begins to rise again and the cycle begins once more.
The Polar Region Open Ocean Outgoing LW and SW Radiation graph (C) shows that the
Polar Region does not behave in the same manner as the surface of the earth that is subject to
the 24 hour day/night cycle. The long periods of daylight and night result in a continuous
release of LW and SW radiation into space.
4.4.4 – Earth’s input/output energy – sources and drains
The earth’s primary and secondary sources of energy are the sun’s irradiation and the earth’s
geothermal heat. They are opposing heat sources that radiate towards the earth’s surface. The
sun is the greater heat source, at 5.5x1024 joules, whilst the earth supplies heat energy
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currently in the region of 3 to 3.6x1022 joules. Other heat energy channels, although
supplementary and important to the whole of earth’s heat content and energy management
system, supply far less heat energy.
The sun is the most important source of earth’s energy. Its energy is needed to lift the earth
from a heat content of about 2°K to the level necessary for life, as we know it, to exist on the
planet.
Figure 4.16 shows earth’s opposing heat sources (day phase). The heat sources have a
different effect on the:
Polar Oceans
Continental plates
Oceanic plates
The application of the
energy results in distinct
layers that alter in their
temperature and thickness on
the passing of the seasons.
An example of layers
separated by a
thermodynamic barrier are
the Troposphere and the
Stratosphere. The separation layer is called the Tropopause. This layer has a variable
aperture. It acts as a thermodynamic barrier whilst the earth is intercepting heat from the sun
during the day phase but loses that ability either once the earth enters the night phase or if
there is a sudden entry of energy into the biosphere that alters the heat content of the
Troposphere (or the Stratosphere) and alters their thermodynamic properties.
For example, a volcanic eruption during the day phase will introduce a sudden burst of heat
into the biosphere which will be quickly distributed about the immediate atmosphere and
change the conditions that would normally prevent the dissipation of heat into the
Stratosphere and into space.
To recap: The manner in which the Tropopause, and other thermodynamic barriers, are
created and maintained is based on the principle that two (2) opposing sources of heat create
a layer of equivalent heat energy that forms into a thermodynamic barrier. The barrier
prevents the movement of heat between adjacent layers creating a closed system environment
within each layer. Entropy within each of the layers disperses the heat into the layer as the
heat content of the closed system works towards a state of equilibrium. While in the closed
system the heat content of a layer is prevented from transferring to the open system of the
universe unless the heat content of one or the other layers changes.
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Figure 4.17 indicates three (3) reference locations about the earth and that each location has
different layers, boundaries (separation layers) and a different flow of heat during the day
phase of the 24 hour cycle.
The matters that determine how the layers are formed and maintained are:
The sequence of transfer of heat between one layer and another.
The density of the matter in the layer.
The heat capture capacity of the matter in the layer.
Each layer’s heat content.
Equilibrium heat values between layers that form separation barriers.
Entropy that maintains the heat content in the distinct separation barriers.
Variable apertures pertinent to the layers and the separation barriers where they apply.
The epipelagic and thermocline layer that maintains a persistent separation of the heat
energy delivered by the sun and by the earth.
The principle difference between the layers is their mass, content of water and, in the case of
the Polar Regions, the issues of insolation whilst being subjected to the earth’s obliquity.
The previous discussion explained how the movement of the sun’s irradiation and the earth’s
geothermal heat created the ocean separation barrier that, in turn, directed geothermal heat to
be distributed into the layers of water below the thermocline. Also discussed was that the
absence of an epipelagic and thermocline layer at the Polar Regions allowed for heat
deposited into the ocean to be dissipated into space.
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The importance of the previous discussion is that the sun and the earth represent opposing
energy sources that eventually meet at layer junctions such as the thermocline and the
Tropopause. There is no escaping the fact that the Laws of Thermodynamics, together with
the Law of Conservation of Matter and Energy, dictate the conditions that persist on earth
while the two (2) opposing forces (heat sources) are active.
In each of the categories of Figure 4.17 (day phase) there are black and orange “+” and “–”
signs. The black signs relate to geothermal heat and the orange signs to the sun’s irradiation.
A “+” means that the heat content at the layer nearest to the sign is relatively higher than at
the “–” sign. This allows for the transmission of heat from “+” to “–” for both sources of
heat.
Again, in the example of the Troposphere, the temperature at the junction of the earth’s
surface and the Troposphere is greater relative to the Tropopause but incoming solar
irradiation would see the layer as warmer at the junction of the Stratosphere than at the
surface of the earth that it is travelling to. The geothermal heat dissipating into space would
see the Tropopause as cooler than the surface of the earth. Each heat source applies its
particular relativity to the passage it takes unless it meets an obstacle, like a separation layer,
that causes the heat transfer to stop.
Figure 4.18 shows the heat flow through the layers during the night phase of the 24 hour
cycle.
In the night phase there is no irradiation that can counter the flow of heat escaping into space.
The atmosphere’s separation barriers cease to exist until the sun’s irradiation returns and
supplies heat to reform them.
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The heat content of the epipelagic zone and thermocline is not totally released during the
night phase.
The loss of heat to space may cause an alteration from the surface to the depth of the
thermocline but the epipelagic/thermocline entity remains and their action as a separation
barrier remains to stop the bulk of the geothermal heat delivered into the ocean from
dissipating into space. Any loss or gain of heat will cause the continual readjustment of the
depth of the epipelagic zone and the thermocline.
Land behaves differently to ocean areas. Land has a great variability in the amount of water
that it contains. Deserts, for example, contain very little water and the geothermal heat that
reaches the surface, together with the heat accumulated by the land during the day, would be
dissipated into the atmosphere once the sun ceases to shine onto the land.
Plant cover also impacts on the manner in which land absorbs insolation and hence the
amount of heat energy available for dissipation.
4.4.5 - The geothermal heat escape route
The release of geothermal heat into the ocean’s sea floor, even at its lowest point, will never
allow the deep ocean water to turn to ice while the internal workings of the earth generates
heat and that heat is either convected or released directly into the oceans water mass. The
geothermal heat accumulates in the deep ocean waters below the thermocline unless there is
an opportunity for it to escape and be dissipated into space.
In the situation we are in today, the intensity of the heat stored in the epipelagic layer will
prevent most of the heat captured in the mass of water below the thermocline from escaping
into the atmosphere except at the Polar Regions.
There is no separation layer at the Polar Regions. The Polar Oceans have a surface
temperature that permits sea ice to form (at about -2°C). Both Polar Regions still have vast
permanent sea ice shelfs that are melting rapidly.
This property of the Polar Regions performs as a thermal exhaust opening. It allows
geothermal heat and heat delivered to the Polar Regions to be dissipated into space day and
night throughout the year with only a small change in intensity in dissipation as shown on
Figure 4.15 (C).
4.4.6 - Heat dissipation from the Polar Ocean
The Polar Regions differ in the manner in which heat delivered to them is managed as the
epipelagic and thermocline layers (the separation layer) are absent. Accumulated heat is able
to escape into the atmosphere from the Polar Oceans if they are free of sea ice and at a
temperature above that which will allow sea ice to form but of insufficient warmth to allow
the epipelagic and thermocline layers to form.
In the case where there is a sea ice shelf, the rising geothermal heat acts on the colder ice and
causes it to melt from below. Similarly, geothermal heat rising on land on which glacial ice is
deposited causes the melting of the ice layer supported by the land. At the current rate of
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geothermal heat release it will accelerate the melting of the sea ice and the warming of the
Polar Regions at a rate greater than the remainder of the earth is experiencing. The separation
layer is not of a consistent thickness and thins from the equator to the upper latitudes and
merges into the colder ocean water at latitudes close to the Polar Regions.
Figure 4.19 shows that the epipelagic and thermocline layers are not evident in the Polar
Regions. The
Antarctic, the colder
of the Polar Regions,
has a greater distance
between the South
Pole and the edge of
where the separation
layer ends (distance
“A” in Figure 4.19)
than the North Pole
(distance “B” in
Figure 4.19).
The absence of a
separation layer near
the Polar Regions
provides an
opportunity for the
heat to escape into
the atmosphere and dissipate into space through a cooler channel - shown as the “geothermal
heat escape route” on Figure 4.20.
The geothermal heat escape routes are also
utilised by warm ocean currents that deliver heat
to the Polar Regions. The heat content of the
warm ocean currents mix with the rising
geothermal heat as the warm ocean currents lose
their heat content to the colder ocean and
atmosphere.
However, the warm ocean currents will be a
barrier to the rising geothermal heat until they
lose their heat content by its dispersion into the
colder Polar Ocean water, the melting of the sea
ice shelf and, in the case of land in the Arctic and
Antarctic, warming the adjacent land.
The combined content of the warm ocean
currents and geothermal heat will first disperse
itself amongst the colder water but will
consequently escape into the atmosphere if the
atmosphere becomes relatively colder than the water. The Polar winter is a time that the
release of heat from the Polar Oceans would be maximised.
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What heat escapes into space will add to the outgoing radiation from insolation and other heat
energy sources measured by CERES as LW and SW radiation. However, the bulk of the
geothermal heat is stored in the mass of water below the thermocline, where the thermocline
exists.
The heat that makes its way to the atmosphere and into space through the geothermal heat
escape routes is the sum of geothermal heat and heat captured by the oceans directly (from
insolation) or deposited into them (by the hydrologic cycle) and transported to the Polar
Regions by warm ocean currents when relative heat conditions between the warm ocean
currents and the heat stored in the deep ocean waters allow the two sources of heat to
combine.
During a warming trend the distances between each of the Poles to the edge of their
respective thermocline decreases progressively as OHC increases. This reduces the surface
area available for heat in the oceans to escape into the atmosphere and into space. The area of
warm water maintained by the thermocline and the epipelagic zone increases. Evaporation
from the oceans increases. This action increases the turnover volume of atmospheric water
and reduces the hydrologic cycle time; two (2) aspects of the hydrologic cycle that alter
rainfall patterns and precipitation volumes.
4.4.7 - The Polar Regions’ hydrologic cycle
The Polar Regions have environmental peculiarities that set them apart from the remainder of
the earth. The eight (8) numbered steps in the energy transfer and absorption process
particular to the Polar Regions are noted on Figure 4.21.
The hydrologic cycle
that operates at the
Polar Regions
moderates the
acceleration of the
warming phase by
absorbing some of the
energy injected into
the earth’s
environmental system,
both from natural and
anthropogenic sources.
The absorbed energy warms the Polar Oceans and the land, and melts ice deposits on land
and sea.
Note: A study titled; Direct observations of submarine melt and subsurface geometry at a
tidewater glacier (R4.22), (Sutherland D. A., et al, 2019), confirmed that the process of Polar
ice melting and ocean warming was proceeding at a rate much faster than expected.
The eight (8) steps particular to the Polar Regions are described as follows:
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Step 1. Ocean currents from the equatorial and sub-equatorial regions deliver a layer of warm
water to the Polar Region. The layer of ocean water in warm currents can be up to
1,000 metres thick.
Step 2. Geothermal heat rises from the mantle.
Step 3. The warm ocean current and the geothermal heat combine. Where there is no sea ice
shelf stopping the heat it rises into the atmosphere eventually dissipating into space.
The combined heat warms the sea ice shelf and melts the ice. The sea ice shelfs are
not as thick as the layer of warm ocean water. The warm water contacts the edges of
the sea ice shelf and causes them to melt. The warm water also travels below the sea
ice shelf to melt the ice from below. The energy in the warmer water is absorbed as it
melts the ice. The area and the thickness of the sea ice shelf reduces.
Step 4. The warm ocean current reaches land below the sea ice surface. It warms the land in
conjunction with the geothermal heat that rises through the earth’s crust (R4.23). The
force of the ocean mass and current drives the warmer water between the junction of
the sea ice shelf and the continental shelf at or below sea level.
Step 5. The warm ocean water makes its way to the junction of the land and glacial ice on the
continental plate. The transfer of heat to the junction of the land and glacial ice
promotes ice melt and the acceleration of glacial ice flow. An aspect of ocean
warming and sea shelf ice melt confirmed in the April 2021 article: “Pathways and
modification of warm water flowing beneath Thwaites Ice Shelf, West Antarctica” by
K. Wåhlin and co- authors (R4.24). There is a strong probability that the rising
geothermal heat will also melt the base of the ice deposited on the land of the
Antarctic continent.
Step 6. As the ocean water warms it increases the amount of evaporation at the Polar
Regions. The extent of the volume of evaporation is dependent on the temperature of
the warm current and the extent the cooler Polar Oceans and sea ice can absorb
energy and reduce the temperature of the mixed ocean waters. The warmer the mixed
Polar Ocean water becomes the greater is the volume of evaporation resulting from its
surface. The warmth of the evaporation elevates the temperature of the Polar Region.
Step 7. The prevailing wind mixes with the warm wind currents. The prevailing winds drive
the evaporation onto the area of glacial ice that is deposited on the continental plate.
The winds exchange energy with the colder environment and warm the atmosphere.
Step 8. The evaporation precipitates in a volume proportional to the extent of evaporation. If
the atmospheric temperature becomes warm enough then the precipitation will fall as
rain and help to melt the surface of the glacial ice.
The continuation of the warming Polar Hydrologic Cycle causes a transitional change to the
climate of the Polar Region.
4.5 –The Earth Energy System (EES)
There are many models of the earth’s energy budget that show the imbalance of the
input/output radiation based on measurements taken by orbiting monitoring satellites.
The earth energy budget (EEB) models prominent in many publications take into account the
incoming solar irradiation, cloud cover, reflections and absorption of the incoming irradiation
and various factors of earth’s heat emissions, such as thermals and evaporation, balanced by
back radiation from greenhouse gases (radiative forcing).
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Figure 4.22 is an example of an EEB by L. Chambers in the article; “Energy Budget: Earth’s
most important and least appreciated planetary
attribute” (R4.25).
The diagram is representative of all
components that affect the earth’s surface in
accordance to the EEB model but it does not
take into account all the sources of energy that
the earth is subjected to as noted in Table 4.2.
The article implies that a standard EEB model
requires an additional source of energy in
order to balance the CERES satellite based
measurements of incoming and outgoing
energy.
The earth energy system (EES) model is proposed as an alternative to the earth energy budget
model. The EES model encompasses all known energy sources and drains that apply to the
earth and describes the earth as a unique satellite of the solar system with a hot internal core
and mantle, magnetic field protection and biospheric properties that promote carbon based
life.
The proposed EES model is based on the concept that the CERES monitoring satellite
measures the incoming (the suns intercepted irradiation) and outgoing long wave (LW) and
short wave (SW) radiation during a prescribed interval of time and that the net difference in
the measurements states that either a greater or lesser amount of energy is dissipated than is
received from the sun.
Figure 4.23 shows the five (5) principle components of the earth energy system are associated
with the biosphere. Each has the
potential to impact the total
energy in the EES and alter
earth’s environmental and
weather conditions.
The earth’s heat energy
associated activities, also noted
on Figure 4.23, are associated
with the biosphere, atmosphere,
land and oceans.
They are the elements that
manage the total heat content
uptake and storage from
insolation and other sources that
results in the residual heat energy
that is dissipated to space in the
forms of LW and SW radiation.
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In the EES model global warming and climate change are consequent to the intercepted level
of the sun’s insolation and the added energy of associated heat energy producing and
consuming activities directly related to the earth.
4.5.1 – The five (5) biospheric components of the EES
Each of the categories listed in the energy associated activities block contribute to the total of
the energy that has a direct impact on the earth’s environmental conditions in accordance to
the 5 biospheric components as follows:
1. Heat energy interception.
There are two (2) major sources of heat that are intercepted by the biosphere; the sun
and the earth’s geothermal energy as described earlier. Both are constant sources of
heat but have a variability in the heat intensity that affects the earth based on:
- The changing physical properties of the sun and its irradiation output.
- The rotation of the earth on its axis.
- The constant minimum level release of the internally generated geothermal heat
and additional irregular releases of internal heat (by volcanos, fissure openings
etc.) as the continental and oceanic plates move about the earth.
- Cloud cover, aerosols and dust that can prevent the sun’s heat from reaching the
earth’s surface.
- The dynamic and orbital properties of the earth, known as the Milankovitch
cycles, which alter the earth’s relationship with the sun.
2. Heat energy generation.
- Heat energy is generated in the biosphere by natural events such as forest fires,
life, naturally occurring chemical reactions and intercepted cosmic impact events.
- There are also anthropogenic events such as the combustion of fossil fuels, the
reaction of nuclear materials and the application of exothermic chemical reactions.
3. Heat energy consumption.
- Life has a cycle. Life is born, grows and dies. It consumes the sun’s energy as it
creates biomass.
- Death subjects the life to decomposition which releases the stored energy back to
the environment.
- A comparison between the biomass from one period to the next gauges whether
energy has been consumed or released.
- Ice melt also consumes energy as the heat is absorbed and converts the ice to
water although this will cease once all ice deposits are melted.
4. Heat energy storage.
- Heat is stored in the atmosphere, the land and the ocean.
- The ocean is the principle heat store.
- The land and the atmosphere radiate their heat into cooler areas towards space.
- Evaporation from the ocean releases heat from the ocean into the cooler
atmosphere.
- Evaporation volumes increase the warmer the earth becomes.
- Evaporation heat losses radiate into cooler areas towards space.
- Ocean currents transfer heat from a warm source to a cooler receptor.
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-
The hydrologic cycle assists insolation to add heat energy to the oceans heat store
by gathering heat in the atmosphere and land.
5. Heat energy dissipation.
- The atmosphere, land and the ocean each release heat that is dissipated into space
both day and night.
- A greater intensity of the rate of heat dissipation into space occurs during the night
phase of the earth’s day/night cycle.
- Cloud cover reduces the rate of heat dissipation into space.
4.5.2 – Differences between the EEB and the EES models
The most significant difference between the EEB model and the EES model is that the latter
does not include radiative forcing. Radiative forcing would imbalance the EES model.
The EES model encompasses all the energy sources that affect the earth and meets all the
criteria that defines the earth and its heat management mechanism as abiding by the Laws of
Thermodynamics and the Law of Conservation of Matter and Energy.
The action of heat absorption by greenhouse gases (and other gases in the atmosphere) is an
aspect of earth’s total energy complement and internal environmental cycles and controls.
The dissipation of energy is representative of all activities. The measurement of the earth’s
land and ocean surface temperature records the heat content of the atmosphere at the time the
measurement is taken at the location that it is taken at.
The EES model consolidates all the energy additions and subtractions that would cause the
earth to experience a growing or reducing retained heating content that can be identified as
causing global warming or global cooling. It could also be that two (2) or more energy
associated activities are contributors to a warming or cooling trend or could influence the
direction a trend the earth was following.
The sun remains the prime contributor to the earth’s energy system. The level of irradiation
intercepted by the earth would initiate a warming or cooling trend during a 150MY Solar
Cycle.
Note that when the CERES data is taken into consideration:
A Total Solar Irradiance of 1361W/m² represents the solar energy delivered by the
sun at a trend turn point as per the article; “Variability of the Total Solar
Irradiance” (R4.20). At this level of irradiation the sun maintains a steady level of heat
without causing either a warming or cooling trend on earth.
The Solar Constant, of about 1367W/m² (represented by the PMOD Composite TSI
Time Series (Daily Means), is a value slightly higher than what it was measured to be
by CERES (represented by the ACRIM Composite TSI Time Series (Daily Means) as
reported in the article: ACRIM total solar irradiance satellite composite validation
versus TSI proxy models by N. Scafetta and R. Willson (R4.26).
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4.6 –Tectonic events that increased the earth’s AGT
This section hypothesises that tectonic activity has the potential to cause an elevated release
of the earth’s geothermal heat that then increases the earth’s average global temperature. The
conceptual method of operation is described in the example associated with the South
American Altoplano uplift event.
4.6.1 – Earth’s dynamics
Tectonic activity is a persistent component of the earth’s dynamics. The continental plates
move constantly at a slow pace that, over millions of years, changes the layout of the land
masses and the oceans.
The motion of the plates of land that “float” on the fluid magma below them, some with
oceans above them, results in the creation of pressure that moves and alters the topography of
the solid matter that is the basis of the earth’s crust. The water in the oceans moves about to
fill depressions created by the three (3) dimensional movement of the solid matter. Fault lines
delineate one plate from another where they join.
The movement of the plates result in subduction and collision events that have the potential
to cause rifts and cracks in the fault lines between them. The fault lines can manifest as
earthquakes, volcanoes or as sea floor vents that release the earth’s internal heat into the
biosphere.
Note: In the context of this discussion the biosphere is considered to extend from the lowest
point on the sea floor to the top of the Troposphere as all major events that impact the earth’s
surface occur in this space.
The heat that escapes from crustal openings into the mantle is one component of the earth’s
total energy management system that adds to the heat delivered by the sun.
In the paper, “Variability of the Total Solar Irradiance”, W. Fiori, March 2021(R4.20), reference
was made to the work of C. R. Scotese, N. J. Shaviv and J. Veizer, that identified the
existence of the 150 Million Year Solar Cycle, with defined “hot” and “cold” periods. The
graph (Figure 2 in the article noted) represents the highly smoothed average global
temperature variations in the cycle as per C. R. Scotese’s graph (Figure 1 in the article noted)
converted to a linear form. The graph (Figure 2 in the article noted) shows that the earth
intercepts a quantity of heat from the sun that varies in intensity during the cycle time. The
graph, although representing a highly smoothed movement of the average global temperature,
also shows that the cycle is not smooth as there is evidence of interruptions and deviations in
both the cooling and warming trends that act on the trend for a period of time and then the
trend settles back to the cycle path.
4.6.2 - The South American Altoplano uplift event
The interruptions and deviations to the 150MY Solar Cycle trend evident in the mid to lateCenozoic Era were investigated in terms of the timing and events related to the uplift of the
South American Altoplano. At this time the Pacific and Nazca Plates, largely responsible for
the western North American and South American mountain ranges’ orogenies in the late
Cretaceous, continued to apply subduction pressure against both the American continental
plates altering the topography of the two continents.
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This “recent” time frame was used as an example of a tectonic period that caused an increase
in the average global temperature during a cooling trend induced by the 150MY Solar Cycle.
The enormity of the earth’s capacity to cause significant topographic and environmental
changes is shown during the period of time it took to uplift the Altoplano, situated in the
Andes Mountains of Bolivia and Peru, to 4000m beginning in the late Miocene. This
significant event was part of the subduction event that affected both the North and South
American continents’ western coastlines. It resulted in several changes to the topography of
the land to the western coastline of the North American and South American continents
mountain ranges and coastlines.
The Altoplano, today a plateau that has an area of about 103,600 km² (40,000 miles²), is more
than 3,962m (13,000 feet) above sea level in places, as noted in several references (R4.27). The
area of the Altoplano is second only to the area of the Tibetan Plateau, as noted by C. Wang
(R4.28)
(2,500,000km² in area) and would have required a corresponding relative magnitude of
force to cause the uplift.
The events particular to the uplifting of the Altoplano occurred in two (2) steps and is
summarised as follows:
1. The first uplift to 2,000m above sea level began about 24 MYA. The Altoplano
reached that height in a time of about 8MYs and stabilised for about 4MY.
2. A second uplift of the Altoplano took it to 4,000m above sea level in the following
5Mys.
Figure 4.24 indicates the timing and the changes in the average global temperature as the
Altoplano uplifted. It shows the two (2) characteristics that are related to the measurement of
39
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/ 7/ 2022
global warming during the Miocene; the concentration of atmospheric carbon dioxide (in
blue) and the average global temperature (in red).
The following discussion commences with the earth pursuing a cooling trend during the
Eocene that terminated as the Quaternary Ice Age reached its low point in the Pleistocene,
2.1MYA.
Note: When proceeding through the discussion below it is important to note that a
subduction event was occurring between the Pacific plate and the North American plate, with
significant changes to the land topography of North America, at the same time as the tectonic
activity in South American continent uplifted the Altoplano. The two events created a fault
line, and an area of subduction pressure, that extended for more than 12,000 km from the top
of the western edge of the North American plate to the bottom of the western edge of the
South American plate. Subduction pressure was intermittently applied about this fault line for
about 18Mys as the land about the western perimeter of the two continents, some of which
was submerged below the sea, was uplifted to various heights above sea level; the highest
uplift being the Altoplano. The tectonic forces applied to both continents contributed to the
movements of the average global temperature and the atmospheric concentration of carbon
dioxide.
Subduction forces were intensifying on the western border of the Americas and, in particular,
between the Nazca Plate and the South American Plate during the early to mid-Oligocene
resulting in a period of increasing tectonic activity that began to release internal (geothermal)
heat into the ocean and land surrounding the fault line. As the heat spread about the oceans it
caused a reduction in the rate of cooling the earth was following.
About 24MYA tectonic activity strengthened. The increased release of geothermal heat at
subduction fault lines warmed the oceans further and they released more carbon dioxide into
the atmosphere. The sun induced cooling trend was continuing but the geothermal heat was
able to slow the rate of cooling that was taking the earth to the low point of the ice age.
Note: The earth had been following a cooling trend that began in the late Cretaceous. The
release of the geothermal heat by the subduction event caused an interruption of the trend.
At a point in the late Oligocene, early Miocene, about 23MYA, the land mass that represents
the present Bolivian and Peruvian shoreline and the Altoplano began to rise. It elevated a
great mass of seawater with the Altoplano, contained in its natural depressions, on its journey
to the first stage of the uplift to 2,000m. The tectonic pressure increased the rate of release of
the earth’s internal heat. The average global temperature began to rise as the heat dispersed
about the oceans. The oceans warmed and released more carbon dioxide captive in the ocean.
The pressure abated about 14MYA but the release of geothermal heat continued. The rate of
cooling caused by the reduction in irradiation from the sun was lessened by the tectonic and
volcanic activity. The average global temperature remained steady for about 5 million years
before the volcanic activity subsided, stabilised and the average global temperature once
again began to decline in accordance to the reduced irradiation from the sun.
The average global temperature increased by about 1.3°C in the 9MYs of elevated tectonic
and volcanic activity. However, when taking into account the potential decline in the average
global temperature(about -1°C), had the cooling trend not been interrupted by the tectonic
40
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/ 7/ 2022
events, then the tectonic activity of that time would have increased the average global
temperature by about 2.25°C, as shown in the portion of the graph coloured in orange, in
Figure 4.25.
The increase in the average global temperature represents a rate of change of about
0.25°C/MYs.
However, there is no surety that the average global temperature trend that began just before
the beginning of the uplift would have continued.
Two (2) alternative possibilities of cooling trends that could have been influenced by the
tectonic activity of that time have also been shown on Figure 4.25. The two (2) possible
cooling trends (coloured in peach and blue on the graph) had the potential to decrease the
average global temperature by about 1.25°C.
Hence, the potential for the tectonic activity of that period to have interrupted the cooling
trend was in the order of adding about 3.8°C to the average global temperature in a time of
about 9MYs; a rate of change of about 0.42°C/MYs.
This is a minor rise in average global temperature when compared to the last 100 years that
has seen the average global temperature increase by 1°C (representing a rate of warming
equal to about 10,000°C/MYs).
A second bout of subduction pressure started about 12MYA. It released the earth’s internal
heat for the next 7 million years. It slowed down the rate of cooling but could not prevent the
average global temperature from steadily decreasing even though the Altoplano was raised a
further 2,000m.
The land stability was maintained from 5MYA to today. Evidence of the tectonic activity that
raised the Altoplano from sea level to 4,000m is strewn about the Altoplano. Lakes have
41
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/ 7/ 2022
dried and their sea salt content remains in the depressions in which the water originally laid.
The eastern and western cordilleras of the Andes about the Altoplano show many
extinguished volcanos as evidence of its geologically turbulent recent past.
All in all the uplifting of the Altoplano to its final 4,000m above sea level repose hampered
the rapid decline the average global temperature was following. However, it could not stop it
from bottoming to an intense ice age that peaked 2.1MYA.
A point to note is that the atmospheric concentration of carbon dioxide did not correlate
consistently with the changes in the average global temperature throughout the Oligocene,
Miocene and Pleistocene Epochs. The 140ppmv increase in the atmospheric concentration of
carbon dioxide happened in a time of about 9MYs (23MYA to 14MYA), at a rate of
15.56ppmv/MYs and about 125ppmv in 5MYs (10MYA to 5MYA), at a rate of
25ppmv/MYs. The increase in the atmospheric concentration of carbon dioxide from 10 to
5MYA corresponds to a drop in the average global temperature of about 1.5°C. The rates of
change in the two (2) occurrences of increases in the atmospheric concentration of carbon
dioxide during the Miocene are negligible when compared to the rate measured in the last 50
years.
At no time were the intrusive sources of geothermal and volcanic energy of such an intensity
that the rate of warming was more than in the possible range of about 0.25° to 0.42°C/MYs.
This was despite the influence of aggressive subduction forces that acted to create mountain
ranges on the western coastline of two (2) continents over a distance of about 12,000km.
4.6.3 – Temperature changes of the Arctic Ocean
Reference to the temperature of the Arctic Ocean in Figure 4.24 indicates the amount of
geothermal energy that was released during this period. In the article, “Evidence for ice-free
summers in the late Miocene central Arctic Ocean”, by R. Stein et al, 2016 (R4.29), the
researchers did not relate the northern Polar Oceans to a particular timing other than in the
late Miocene. The arrow pointing backwards towards the early Miocene and into the
Oligocene in Figure 4.24 relates the increase in the ocean temperature to the timing of the
beginning of the second uplift to 4,000m and the precursor tectonic activities that initiated the
uplift, including the first uplift that took the Altoplano to 2,000m. These events support the
cause for the temperature measurements the researchers identified.
A significant amount of the earth’s geothermal heat must have been injected into the earth
energy system at that time. The rate of decline to the Quaternary Ice Age low point 2.1MYA
did not accelerate until the end of the Pliocene. Had the sun’s intercepted irradiation not
declined to a level that took it to the ice age low point, the second uplift would have added
considerable heat content to the oceans and the average global temperature would have
climbed substantially by perhaps an amount equivalent to the first uplift.
At all times in the discussion above the average global temperature was directly related to the
earth energy system’s volatile energy sources and responded to the content of energy in the
biosphere in accordance to the intensity of the sun’s insolation and the intensity of energy
other intrusive sources could deliver. The only energy source missing in the Miocene, when
compared to today, was the heat energy and water vapour generated from potential energy
42
Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/ 7/ 2022
sources (fossil fuels, nuclear materials and human induced exothermic chemical reactions)
exhausted into the earth energy system in several different ways, principally in the biosphere,
and predominantly above sea level.
4.6.4 – Other events of collision and uplift
The intensity of heat released from the earth’s mantle can be related to two (2) other events of
significant collision and uplift of the earth’s tectonic plates that have occurred in the last 250
million years:
The Permian Mass Extinction Event.
The Paleocene-Eocene Thermal Maximum.
Figure 4.26 indicates the timing of these events and their impact on the average global
temperature.
Both events share similarities to
the South American Altoplano
Uplift event:
They are events where
land masses merged.
The uplift associated with
the subduction and the collision
was extreme in force and of a
relatively short geologic time
duration.
The movement of the
tectonic plates and the uplift
forces created:
o A plateau in Asia when it collided with India (the Tibetan Plateau).
o The final stage of the consolidation of all continental plates into one (1)
landmass, Pangaea.
Volcanic activity resulted from the subduction and uplift of the continental plates.
Considerable sea floor activity occurred at the juncture of the moving tectonic plates
with potentially high releases of the mantle’s heat directly into the oceans.
The oceans’ additional heat content increased the earth’s average global temperature
above the rate of irradiation received from the sun.
The event, particular to the time of the Permian Mass Extinction, added about 2°C to
the sun’s induced peak average global temperature prior to the turn point to a cooling
trend.
It was only during the time-frames of these two major collision events that the Arctic Region
was found to have both land mass and a warm temperate climate in the last 600 million years
according to the paleoclimate maps provided by C. R. Scotese (R4.30).
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Earth’s EB, heat sources, GW and Thermodynamic properties, W. Fiori, Rev 1: 16/ 7/ 2022
It suggests that, at those times, the Polar Ocean water temperature would have been well
above 0°C as occurs at warm temperate regions today throughout the seasons.
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47