Property talk:P2927

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water as percent of area
which percentage of the territory of this item inside coast line and international bounderies is water. Use "percent" (Q11229) as unit

Represents	surface water (Q752112)
Data type	Quantity
Template parameter	|Процент воды= in ru:Шаблон:Государство
Domain	According to this template: country (Q6256) According to statements in the property: country (Q6256), administrative territorial entity (Q56061), artificial geographic entity (Q27096235) or human-geographic territorial entity (Q15642541) When possible, data should only be stored as statements
Allowed values	0 ≤ 𝓧 ≤ 100
Allowed units	percent (Q11229)
Example	Singapore (Q334) → 1.444 percent Uganda (Q1036) → 18.2 percent Nevada (Q1227) → 0.72 percent Currituck County (Q511761) → 50 percent
Tracking: usage	Category:Pages using Wikidata property P2927 (Q28648935)
See also	area (P2046), water area (P8887)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P2927 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 30,742 Main statement 30,737 >99.9% of uses Qualifier 4 <0.1% of uses Reference 1 <0.1% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Type “country (Q6256), administrative territorial entity (Q56061), artificial geographic entity (Q27096235), human-geographic territorial entity (Q15642541)”: item must contain property “instance of (P31)” with classes “country (Q6256), administrative territorial entity (Q56061), artificial geographic entity (Q27096235), human-geographic territorial entity (Q15642541)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: ocean planet (Q1045138)
List of violations of this constraint: Database reports/Constraint violations/P2927#Type Q6256, Q56061, Q27096235, Q15642541, SPARQL

Units: “percent (Q11229)”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2927#Units

Range from “0” to “100”: values should be in the range from “0” to “100”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2927#Range, hourly updated report

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2927#Scope, hourly updated report, SPARQL

Citation needed: the property must have at least one reference (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: ocean planet (Q1045138)
List of violations of this constraint: Database reports/Constraint violations/P2927#citation needed

This property is being used by: hu:Sablon:USA megye infobox, hu:Sablon:Tájegység infobox hyw:Կաղապար:Տեղեկաքարտ Բնակավայր eu:Txantiloi:Herrialde infotaula, eu:Txantiloi:Herrialde infotaula/berria ab:Ашаблон:Акарточка Аҳәынҭқарра vo:Samafomot:Topam in Fransän, vo:Samafomot:Topam in Deutän, vo:Samafomot:Topam in Litaliyän Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Possible sources

I found this page at worldstat.info and this page of CIA factbook as a possible sources. Lymantria (talk) 08:03, 22 June 2016 (UTC)

Qualifier only?

Without the area, I'm not sure how this should be of use.
--- Jura 06:49, 22 June 2016 (UTC)

Even without area it gives the relative amount of (surface) water. Lymantria (talk) 07:15, 22 June 2016 (UTC)

Which sea area? --- Jura 07:31, 22 June 2016 (UTC)

None (see e.g. https://www.cia.gov/library/publications/the-world-factbook/fields/2147.html). Lymantria (talk) 08:00, 22 June 2016 (UTC)

Can we add this to the description? -- Jura 08:04, 22 June 2016 (UTC)

 Done in English. Lymantria (talk) 09:50, 22 June 2016 (UTC)

Can I remove the "international borders" part? It could be misunderstood as sea borders? --- Jura 09:54, 22 June 2016 (UTC)

Hmm, I prefer to stay close to the quoted definition. Used bounderies instead. Lymantria (talk) 10:02, 22 June 2016 (UTC)

We could add "excludes sea area such as territorial waters". --- Jura 10:06, 22 June 2016 (UTC)

I think that would add more to confusion than it solves. Lymantria (talk) 10:41, 22 June 2016 (UTC)

"sea area" or "territorial waters"?
--- Jura 09:45, 23 June 2016 (UTC)

The description now states "inside the coast line", if you add more about seas it would imply that perhaps some sea is still included. Often, saying "no" yields thinking "yes" (ask someone not to turn around, and see what happens :) ). Lymantria (talk) 15:30, 23 June 2016 (UTC)

Negligible

Some enwiki infoboxes use this, while the list at w:List of countries and dependencies by area has 0. I went with 0% for negligible.
--- Jura 15:41, 6 May 2018 (UTC)

% forest

See Wikidata:Property_proposal/forest_cover.
--- Jura 15:41, 6 May 2018 (UTC)

US counties map

• Properties used: water as percent of area (P2927)   , FIPS 6-4 (P882)   , coordinate location (P625)   

• Features used: map (Q24515275)   

#defaultView:Map
SELECT ?item ?itemLabel ?water_as_percentage_of_area ?layer ?coor
{
         ?item wdt:P2927 ?water_as_percentage_of_area ; wdt:P882 [] .
         BIND(
                  if ( ?water_as_percentage_of_area < 1  , " 0% to <1 %",
                  if ( ?water_as_percentage_of_area < 5  , " 1% to <5 %",
                  if ( ?water_as_percentage_of_area < 10 , " 5% to <10 %",
                  if ( ?water_as_percentage_of_area < 20 , "10% to <20 %",
                  if ( ?water_as_percentage_of_area < 30 , "20% to <30 %", "30% and more"
         ))))) as ?layer) 
         ?item wdt:P625 ?coor .
         SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY ?layer

Try it!