Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over ... more Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over time freshets, thus floods constituted and constitute a particularly important issue that requires attention. In many cases, flood damages are extensive to the environment, to the economy and also socially. The purpose of this paper is to identify flood-prone areas between Caransebes and Lugoj, land that is part of the Timis river basin. This paper is based on a theoretical model in which we considered the building elements of the flood produced on the Timis river in April 2005 (levels and flows). to represent the zones flood – prone, we used the numerical model of the terrain, created for the abovementioned area. On this model , according to levels measured at hydrometric stations, were defined those flood prone areas. The Timis river hydrographic basin includes a varied terrain (mountains, hills and plains), with pronounced differences in altitude and massiveness, resulting from tectonic movements that have affected the region, this fact has affected water flow processes, both directly through fragmentation and slope, and indirectly, by creating the vertical climate, vegetation and soils zones. Using GIS technology to study hydrological phenomena and their impact on the geographic area are of particular importance due to the complexity of these techniques, which enables detailed analysis and analytical precision as well as an increased speed of the analysis. Creating theoretical models that give scale to the hydrological phenomena, in this case representing the flood areas, is of great practical importance because based on these models the areas can be defined and viewed, having the possibility of taking measures to prevent environmental effects on the natural and / or anthropogenic environment. In the studied area review of the flood of 2005, were represented flood areas, therefore, according with the researches, several villages, located in Timis valley or in the low lands, where the landscape decreases in altitude, were partially affected, also transport infrastructure (roads and railways) was covered by water in some areas, resulting in the isolation of villages; agricultural land located near or within the localities were flooded, situation that had negative consequences on their productivity. The data presented in this study support the importance and opportunity of using GIS techniques in the evaluation of the hydrological risk assessment, techniques through which tackling the problems that address the geographic area is of a global importance, thus giving clear indications to prevent and protect against destructive phenomena.
Remote sensing is of great interest for the study and characterization of the vegetation and of t... more Remote sensing is of great interest for the study and characterization of the vegetation and of the agricultural crops, in order to monitor them and to develop predictable patterns regarding the evolution of the crops and also for the purpose of the decision making process in real time. The main purpose of this research was the study of the sunflower crops dynamics based on spectral information obtained from satellite images. Vegetation dynamics was differently expressed by the indexes NDVI, NDBR and NDMI determined based on spectral information. NDVI has registered an ascending slope since the beginning of the vegetation period until the flowering (65 BBCH code) when the maximum value was recorded (NDVI GS6 = 0.4074). Later the distribution of this indicator recorded a descending slope until the physiological maturity. NDVI in correlation with the NIR band had lower values in the stages 12-14 BBCH code (p<0.01; R 2 = 0.642) and 80-81 BBCH code (p<0.01; R 2 = 0.605) and higher values at flowering stage, 65 BBCH code (p<0.01; R 2 = 0.966), and physiological maturity, 92-97 BBCH code (p<0.01; R 2 = 0.993; F = 3148.2). NDVI index has most closely correlated with vegetation phenophases and it highlighted, by the different level of correlation with the spectral information, the dynamics and variability in the sunflower crop.
Prin elipsoid de referinţă se înţelege elipsoidul terestru general, adoptat convenţional, care ap... more Prin elipsoid de referinţă se înţelege elipsoidul terestru general, adoptat convenţional, care aproximează cel mai bine geoidul. Suprafaţa acestui elipsoid este o suprafaţă pur geometrică şi convenţională, faţă de care se defineşte poziţia geoidului şi faţă de care se determină poziţia unor puncte de pe teren prin coordonate geografice.
Sistemul reprezintă un ansamblu de elemente interconectate care acţionează împreună în scopul rea... more Sistemul reprezintă un ansamblu de elemente interconectate care acţionează împreună în scopul realizării unui anumit obiectiv. SISTEM SISTEM INFORMAŢIONAL -SISTEM INFORMATIC • Sistemul Informaţional constituie ansamblul: informaţiilor surselor nivelelor consumatoare canalelor de circulaţie procedurilor • Sistemele informatice reprezintă partea automatizată cu ajutorul calculatorului în cadrul unui sistem informaţional Detalii topografice • Reprezintă anumite detalii "naturale" de pe suprafaţa terestră (ex: oceane, râuri, continente etc.) sau anumite detalii "construite" de către om (ex: judeţe, parcele, uat-uri etc.) • Un GIS este un ansamblu de persoane, echipamente, programe, metode şi norme (reguli) având ca scop culegerea, validarea, stocarea, analiza şi vizualizarea datelor geografice. Modul de realizare a unui G.I.S.
The complex environmental process of soil erosion is crucial to sustainable land management and c... more The complex environmental process of soil erosion is crucial to sustainable land management and conservation. This study uses the Universal Soil Loss Equation (USLE) model to understand the intricate interactions that cause soil erosion in Cluj County, Romania, a region susceptible to complex erosion and landslide phenomenon. The established analysis depicts erosion patterns from localised hotspots to regions of relative stability, providing valuable insights into this critical issue. Spatial distribution maps with color-coded gradients show soil erosion risk and identify vulnerable regions, with temporal investigations depicting how environmental changes affect soil erosion, making it relevant to soil conservation and land management. A careful analysis of the USLE model's parameters (Ls, Cs, C, S, K) shows their soil erosion contributions. The erosion rates were graded in five classes in accordance to general practices of USLE modelling, which range from very-low, low, moderate, high and very-high susceptibility to soil erosion. While a significant majority of the county's surface is represented by very-low and low erosion risk, several hotspots were identified with intense erosion processes that highlights the critical need to implement soil conservation measures in the area.
Rationale: Water loss by evaporation is a normal physiological process, in order to regulate plan... more Rationale: Water loss by evaporation is a normal physiological process, in order to regulate plant temperature. Under conditions of thermal and water stress, water loss is accelerated compared to normal conditions, and the response of plants is variable. In extreme cases, it can lead to wilting and death of plants. It was found that the phenomenon of water loss behaved as a pattern in different plant species, given by two functions, logistics (first part of water loss) and hyperbola (second part of water loss) in relation to a moment m, at which the rate of water loss (RWL) has reached its maximum value. Method: We studied the water loss process for a series of plant samples on different plant species (Picea abies L., H. Karst; Juniperus communis L.; Pinus silvestris L.; Thuja occidentalis L.; Lamium purpureum L.; Veronica hederifolia L.), measuring the rate of weight loss (RWL) in controlled conditions. The drying of the samples was done in identical conditions (thermo-balance, 100...
DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 2012
Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over ... more Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over time freshets, thus floods constituted and constitute a particularly important issue that requires attention. In many cases, flood damages are extensive to the environment, to the economy and also socially. The purpose of this paper is to identify flood-prone areas between Caransebes and Lugoj, land that is part of the Timis river basin. This paper is based on a theoretical model in which we considered the building elements of the flood produced on the Timis river in April 2005 (levels and flows). to represent the zones flood – prone, we used the numerical model of the terrain, created for the abovementioned area. On this model , according to levels measured at hydrometric stations, were defined those flood prone areas. The Timis river hydrographic basin includes a varied terrain (mountains, hills and plains), with pronounced differences in altitude and massiveness, resulting from tectonic movements that have affected the region, this fact has affected water flow processes, both directly through fragmentation and slope, and indirectly, by creating the vertical climate, vegetation and soils zones. Using GIS technology to study hydrological phenomena and their impact on the geographic area are of particular importance due to the complexity of these techniques, which enables detailed analysis and analytical precision as well as an increased speed of the analysis. Creating theoretical models that give scale to the hydrological phenomena, in this case representing the flood areas, is of great practical importance because based on these models the areas can be defined and viewed, having the possibility of taking measures to prevent environmental effects on the natural and / or anthropogenic environment. In the studied area review of the flood of 2005, were represented flood areas, therefore, according with the researches, several villages, located in Timis valley or in the low lands, where the landscape decreases in altitude, were partially affected, also transport infrastructure (roads and railways) was covered by water in some areas, resulting in the isolation of villages; agricultural land located near or within the localities were flooded, situation that had negative consequences on their productivity. The data presented in this study support the importance and opportunity of using GIS techniques in the evaluation of the hydrological risk assessment, techniques through which tackling the problems that address the geographic area is of a global importance, thus giving clear indications to prevent and protect against destructive phenomena.
This study aimed at characterising and analysing the geometry of bark in the species Fraxinus ang... more This study aimed at characterising and analysing the geometry of bark in the species Fraxinus angustifolia Vahl. (ash) through fractal analysis. Binarised images of the ash bark captured from a caption distance between 10 and 50 cm every 5 cm were analysed through box-counting. Depending on the pixels analysed (black and white-BW, black + black and white-B+BW, and white + black and white-W+BW) we obtained fractal dimensions DBW, DB+BW, and DW+BW, respectively. There was a high positive correlation between fractal dimensions and image caption distance: r = 0.895 for DBW, r = 0.787 for DB+BW, and r = 0.820 for DW+BW, respectively. The relationship of interdependence between fractal dimensions and image caption distance was described by second degree polynomial equations with statistic safety,
Adequate management of agricultural crops requires, among other things, accessible and sufficient... more Adequate management of agricultural crops requires, among other things, accessible and sufficiently accurate methods for assessing plant nutrition and crop vegetation status and for agricultural production estimation. Sustainable technologies are based on correct decisions, prompt interventions and appropriate works, and correct information in real time, and the obtaining information methods can be simple, accessible, and appropriate in relation to different user categories (e.g., farmers, researchers, decision makers). This study used mineral fertilization (NPK), with 11 experimental variants, to ensure a controlled differentiated nutrition of the wheat plants, “Alex” cultivar. Regression analysis was used to obtain models in estimating wheat production, by methods based on: (a) NPK fertilizers applied (F) in the 11 experimental variants; (b) physiological indices (PI), represented by the chlorophyll content (Chl), and plant nutrition status on the experimental variants, in terms o...
The aim of the study was to evaluate the phenomenon of land tilting and the tilting distance as a... more The aim of the study was to evaluate the phenomenon of land tilting and the tilting distance as a secondary effect of surface coal mining in the Jiu Valley area, Romania. To evaluate the tilting phenomenon, through the two considered elements (inclination – Lt, tilting distance – Td) 16 control points (CP1 to CP16) were used whose coordinates were measured in the Stereographic 1970 projection system, the 1975 Black Sea elevation system at an initial moment (t0) and at the current moment (t1). The static method was used by GPS technology to measure the elevations of the control points. Through descriptive statistical analysis, a general characterization of the set of recorded values was obtained, and the ANOVA test confirmed the safety of the data and the presence of variance in the data set. From the analysis of the recorded values, a Spline type model was obtained that described the variation of Lt in relation to Td, under conditions of statistical safety ( ɛ¯ = 0.137302). Regressi...
Jupa village belongs to the municipality of Caransebes. In 1795, the Capra Mansion was built in J... more Jupa village belongs to the municipality of Caransebes. In 1795, the Capra Mansion was built in Jupa village, an imposing building around which Jupa Park was created. Both the mansion and the surrounding park have undergone dramatic changes in the last century. A general landscape analysis was performed based on the GIS and GNSS technologies. An inventory of the wood vegetation was also made and its ornamental value and vitality were assessed. The remnant 11 taxa were identified as follows: 10 tree species (5 native and 5 exotic broadleave trees) and 1 fruit tree. The present-day park landscape is the result of the long-term interaction of the park species with anthropic activities in a rural context. In order to restore a functional green space for the local community of Jupa village, a plan of rearrangement was conceived in compliance with the landscape architecture principles.
The purpose of this paper is to present a modern approach used to establish the Local Registry of... more The purpose of this paper is to present a modern approach used to establish the Local Registry of Green Cadastre of the public administrative territory of Caransebeş Municipality. Topographic measurements of green areas and the tree inventory database have been performed with the latest generation GIS and GNSS instruments. More than 7,000 trees were identified taxonomically and their geographical coordinates and biometric data were determined. All the field data was loaded into an updatable database and processed using the ArcGIS v.10.3 software. A GIS map with all the Green Cadastre information was realized as a useful instrument for the Municipality in order to easily monitor and permanently have an actual image of their green areas situation. Additionally, 48 hectares of green areas have been identified and measured as future potential objects for new projects to be financed in order to improve their citizen’s welfare
Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over ... more Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over time freshets, thus floods constituted and constitute a particularly important issue that requires attention. In many cases, flood damages are extensive to the environment, to the economy and also socially. The purpose of this paper is to identify flood-prone areas between Caransebes and Lugoj, land that is part of the Timis river basin. This paper is based on a theoretical model in which we considered the building elements of the flood produced on the Timis river in April 2005 (levels and flows). to represent the zones flood – prone, we used the numerical model of the terrain, created for the abovementioned area. On this model , according to levels measured at hydrometric stations, were defined those flood prone areas. The Timis river hydrographic basin includes a varied terrain (mountains, hills and plains), with pronounced differences in altitude and massiveness, resulting from tectonic movements that have affected the region, this fact has affected water flow processes, both directly through fragmentation and slope, and indirectly, by creating the vertical climate, vegetation and soils zones. Using GIS technology to study hydrological phenomena and their impact on the geographic area are of particular importance due to the complexity of these techniques, which enables detailed analysis and analytical precision as well as an increased speed of the analysis. Creating theoretical models that give scale to the hydrological phenomena, in this case representing the flood areas, is of great practical importance because based on these models the areas can be defined and viewed, having the possibility of taking measures to prevent environmental effects on the natural and / or anthropogenic environment. In the studied area review of the flood of 2005, were represented flood areas, therefore, according with the researches, several villages, located in Timis valley or in the low lands, where the landscape decreases in altitude, were partially affected, also transport infrastructure (roads and railways) was covered by water in some areas, resulting in the isolation of villages; agricultural land located near or within the localities were flooded, situation that had negative consequences on their productivity. The data presented in this study support the importance and opportunity of using GIS techniques in the evaluation of the hydrological risk assessment, techniques through which tackling the problems that address the geographic area is of a global importance, thus giving clear indications to prevent and protect against destructive phenomena.
Remote sensing is of great interest for the study and characterization of the vegetation and of t... more Remote sensing is of great interest for the study and characterization of the vegetation and of the agricultural crops, in order to monitor them and to develop predictable patterns regarding the evolution of the crops and also for the purpose of the decision making process in real time. The main purpose of this research was the study of the sunflower crops dynamics based on spectral information obtained from satellite images. Vegetation dynamics was differently expressed by the indexes NDVI, NDBR and NDMI determined based on spectral information. NDVI has registered an ascending slope since the beginning of the vegetation period until the flowering (65 BBCH code) when the maximum value was recorded (NDVI GS6 = 0.4074). Later the distribution of this indicator recorded a descending slope until the physiological maturity. NDVI in correlation with the NIR band had lower values in the stages 12-14 BBCH code (p<0.01; R 2 = 0.642) and 80-81 BBCH code (p<0.01; R 2 = 0.605) and higher values at flowering stage, 65 BBCH code (p<0.01; R 2 = 0.966), and physiological maturity, 92-97 BBCH code (p<0.01; R 2 = 0.993; F = 3148.2). NDVI index has most closely correlated with vegetation phenophases and it highlighted, by the different level of correlation with the spectral information, the dynamics and variability in the sunflower crop.
Prin elipsoid de referinţă se înţelege elipsoidul terestru general, adoptat convenţional, care ap... more Prin elipsoid de referinţă se înţelege elipsoidul terestru general, adoptat convenţional, care aproximează cel mai bine geoidul. Suprafaţa acestui elipsoid este o suprafaţă pur geometrică şi convenţională, faţă de care se defineşte poziţia geoidului şi faţă de care se determină poziţia unor puncte de pe teren prin coordonate geografice.
Sistemul reprezintă un ansamblu de elemente interconectate care acţionează împreună în scopul rea... more Sistemul reprezintă un ansamblu de elemente interconectate care acţionează împreună în scopul realizării unui anumit obiectiv. SISTEM SISTEM INFORMAŢIONAL -SISTEM INFORMATIC • Sistemul Informaţional constituie ansamblul: informaţiilor surselor nivelelor consumatoare canalelor de circulaţie procedurilor • Sistemele informatice reprezintă partea automatizată cu ajutorul calculatorului în cadrul unui sistem informaţional Detalii topografice • Reprezintă anumite detalii "naturale" de pe suprafaţa terestră (ex: oceane, râuri, continente etc.) sau anumite detalii "construite" de către om (ex: judeţe, parcele, uat-uri etc.) • Un GIS este un ansamblu de persoane, echipamente, programe, metode şi norme (reguli) având ca scop culegerea, validarea, stocarea, analiza şi vizualizarea datelor geografice. Modul de realizare a unui G.I.S.
The complex environmental process of soil erosion is crucial to sustainable land management and c... more The complex environmental process of soil erosion is crucial to sustainable land management and conservation. This study uses the Universal Soil Loss Equation (USLE) model to understand the intricate interactions that cause soil erosion in Cluj County, Romania, a region susceptible to complex erosion and landslide phenomenon. The established analysis depicts erosion patterns from localised hotspots to regions of relative stability, providing valuable insights into this critical issue. Spatial distribution maps with color-coded gradients show soil erosion risk and identify vulnerable regions, with temporal investigations depicting how environmental changes affect soil erosion, making it relevant to soil conservation and land management. A careful analysis of the USLE model's parameters (Ls, Cs, C, S, K) shows their soil erosion contributions. The erosion rates were graded in five classes in accordance to general practices of USLE modelling, which range from very-low, low, moderate, high and very-high susceptibility to soil erosion. While a significant majority of the county's surface is represented by very-low and low erosion risk, several hotspots were identified with intense erosion processes that highlights the critical need to implement soil conservation measures in the area.
Rationale: Water loss by evaporation is a normal physiological process, in order to regulate plan... more Rationale: Water loss by evaporation is a normal physiological process, in order to regulate plant temperature. Under conditions of thermal and water stress, water loss is accelerated compared to normal conditions, and the response of plants is variable. In extreme cases, it can lead to wilting and death of plants. It was found that the phenomenon of water loss behaved as a pattern in different plant species, given by two functions, logistics (first part of water loss) and hyperbola (second part of water loss) in relation to a moment m, at which the rate of water loss (RWL) has reached its maximum value. Method: We studied the water loss process for a series of plant samples on different plant species (Picea abies L., H. Karst; Juniperus communis L.; Pinus silvestris L.; Thuja occidentalis L.; Lamium purpureum L.; Veronica hederifolia L.), measuring the rate of weight loss (RWL) in controlled conditions. The drying of the samples was done in identical conditions (thermo-balance, 100...
DOAJ (DOAJ: Directory of Open Access Journals), Nov 1, 2012
Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over ... more Flood risk assessment in Timis River basin-the Caransebes-Lugoj sector-using GIS technique. Over time freshets, thus floods constituted and constitute a particularly important issue that requires attention. In many cases, flood damages are extensive to the environment, to the economy and also socially. The purpose of this paper is to identify flood-prone areas between Caransebes and Lugoj, land that is part of the Timis river basin. This paper is based on a theoretical model in which we considered the building elements of the flood produced on the Timis river in April 2005 (levels and flows). to represent the zones flood – prone, we used the numerical model of the terrain, created for the abovementioned area. On this model , according to levels measured at hydrometric stations, were defined those flood prone areas. The Timis river hydrographic basin includes a varied terrain (mountains, hills and plains), with pronounced differences in altitude and massiveness, resulting from tectonic movements that have affected the region, this fact has affected water flow processes, both directly through fragmentation and slope, and indirectly, by creating the vertical climate, vegetation and soils zones. Using GIS technology to study hydrological phenomena and their impact on the geographic area are of particular importance due to the complexity of these techniques, which enables detailed analysis and analytical precision as well as an increased speed of the analysis. Creating theoretical models that give scale to the hydrological phenomena, in this case representing the flood areas, is of great practical importance because based on these models the areas can be defined and viewed, having the possibility of taking measures to prevent environmental effects on the natural and / or anthropogenic environment. In the studied area review of the flood of 2005, were represented flood areas, therefore, according with the researches, several villages, located in Timis valley or in the low lands, where the landscape decreases in altitude, were partially affected, also transport infrastructure (roads and railways) was covered by water in some areas, resulting in the isolation of villages; agricultural land located near or within the localities were flooded, situation that had negative consequences on their productivity. The data presented in this study support the importance and opportunity of using GIS techniques in the evaluation of the hydrological risk assessment, techniques through which tackling the problems that address the geographic area is of a global importance, thus giving clear indications to prevent and protect against destructive phenomena.
This study aimed at characterising and analysing the geometry of bark in the species Fraxinus ang... more This study aimed at characterising and analysing the geometry of bark in the species Fraxinus angustifolia Vahl. (ash) through fractal analysis. Binarised images of the ash bark captured from a caption distance between 10 and 50 cm every 5 cm were analysed through box-counting. Depending on the pixels analysed (black and white-BW, black + black and white-B+BW, and white + black and white-W+BW) we obtained fractal dimensions DBW, DB+BW, and DW+BW, respectively. There was a high positive correlation between fractal dimensions and image caption distance: r = 0.895 for DBW, r = 0.787 for DB+BW, and r = 0.820 for DW+BW, respectively. The relationship of interdependence between fractal dimensions and image caption distance was described by second degree polynomial equations with statistic safety,
Adequate management of agricultural crops requires, among other things, accessible and sufficient... more Adequate management of agricultural crops requires, among other things, accessible and sufficiently accurate methods for assessing plant nutrition and crop vegetation status and for agricultural production estimation. Sustainable technologies are based on correct decisions, prompt interventions and appropriate works, and correct information in real time, and the obtaining information methods can be simple, accessible, and appropriate in relation to different user categories (e.g., farmers, researchers, decision makers). This study used mineral fertilization (NPK), with 11 experimental variants, to ensure a controlled differentiated nutrition of the wheat plants, “Alex” cultivar. Regression analysis was used to obtain models in estimating wheat production, by methods based on: (a) NPK fertilizers applied (F) in the 11 experimental variants; (b) physiological indices (PI), represented by the chlorophyll content (Chl), and plant nutrition status on the experimental variants, in terms o...
The aim of the study was to evaluate the phenomenon of land tilting and the tilting distance as a... more The aim of the study was to evaluate the phenomenon of land tilting and the tilting distance as a secondary effect of surface coal mining in the Jiu Valley area, Romania. To evaluate the tilting phenomenon, through the two considered elements (inclination – Lt, tilting distance – Td) 16 control points (CP1 to CP16) were used whose coordinates were measured in the Stereographic 1970 projection system, the 1975 Black Sea elevation system at an initial moment (t0) and at the current moment (t1). The static method was used by GPS technology to measure the elevations of the control points. Through descriptive statistical analysis, a general characterization of the set of recorded values was obtained, and the ANOVA test confirmed the safety of the data and the presence of variance in the data set. From the analysis of the recorded values, a Spline type model was obtained that described the variation of Lt in relation to Td, under conditions of statistical safety ( ɛ¯ = 0.137302). Regressi...
Jupa village belongs to the municipality of Caransebes. In 1795, the Capra Mansion was built in J... more Jupa village belongs to the municipality of Caransebes. In 1795, the Capra Mansion was built in Jupa village, an imposing building around which Jupa Park was created. Both the mansion and the surrounding park have undergone dramatic changes in the last century. A general landscape analysis was performed based on the GIS and GNSS technologies. An inventory of the wood vegetation was also made and its ornamental value and vitality were assessed. The remnant 11 taxa were identified as follows: 10 tree species (5 native and 5 exotic broadleave trees) and 1 fruit tree. The present-day park landscape is the result of the long-term interaction of the park species with anthropic activities in a rural context. In order to restore a functional green space for the local community of Jupa village, a plan of rearrangement was conceived in compliance with the landscape architecture principles.
The purpose of this paper is to present a modern approach used to establish the Local Registry of... more The purpose of this paper is to present a modern approach used to establish the Local Registry of Green Cadastre of the public administrative territory of Caransebeş Municipality. Topographic measurements of green areas and the tree inventory database have been performed with the latest generation GIS and GNSS instruments. More than 7,000 trees were identified taxonomically and their geographical coordinates and biometric data were determined. All the field data was loaded into an updatable database and processed using the ArcGIS v.10.3 software. A GIS map with all the Green Cadastre information was realized as a useful instrument for the Municipality in order to easily monitor and permanently have an actual image of their green areas situation. Additionally, 48 hectares of green areas have been identified and measured as future potential objects for new projects to be financed in order to improve their citizen’s welfare
In order to achieve or complete the 1: 1.000 scale situation plan and the digital terrain model f... more In order to achieve or complete the 1: 1.000 scale situation plan and the digital terrain model for the Timişoara-Sibiu highway section, and given the difficult access conditions in the project area, it was decided to use photogrammetric techniques for extraction of spatial information needed for mapping. In order to achieve the mapping requirements at a scale of 1: 1.000, the following activities were performed: Realization of the geodetic support network; Realization of the aerial photography project; Making pre-marking points in areas without clear details or other location possibilities; Simultaneous aerial photography of sub-blocks at different flight heights to ensure a 12 cm pixel and simultaneous laser scanning with LiDAR system; Identification of marking and pre-marking points on the subblock frames; Performing GPS measurements to determine the coordinates of landmarks and photogrammetric pre-marking; LIDAR data processing using permanent GPS stations to obtain coordinates in the ETRS89 system and transform them into the STEREO70 system and Black Sea reference plan 75; Calibration of LIDAR data; Filtering LIDAR data; Realization of aerotriangulation on subblocks or bands; Stereo restitution of planimetric and altimetric details for 1: 1.000 scale (3D mode); Transforming 3D plans into 2D plans; Editing and elaborating topographic plans.
Remote sensing is of great interest for the study and characterization of the vegetation and of t... more Remote sensing is of great interest for the study and characterization of the vegetation and of the agricultural crops, in order to monitor them and to develop predictable patterns regarding the evolution of the crops and also for the purpose of the decision making process in real time. The main purpose of this research was the study of the sunflower crops dynamics based on spectral information obtained from satellite images. Vegetation dynamics was differently expressed by the indexes NDVI, NDBR and NDMI determined based on spectral information. NDVI has registered an ascending slope since the beginning of the vegetation period until the flowering (65 BBCH code) when the maximum value was recorded (NDVI GS6 = 0.4074). Later the distribution of this indicator recorded a descending slope until the physiological maturity. NDVI in correlation with the NIR band had lower values in the stages 12-14 BBCH code (p<0.01; R 2 = 0.642) and 80-81 BBCH code (p<0.01; R 2 = 0.605) and higher...
The analyzed projections from this paper are cartographical projections of great importance in pr... more The analyzed projections from this paper are cartographical projections of great importance in practice, solving cartographical problems regarding map drawing based on practical needs. These are the ones referring to terrain surfaces that will be represented, to the accuracy that must be obtained, as well as the ways to accomplish favorable and precise links with other kinds of cartographical projections. Cylindrical Projection (Mercator): is based on a cylinder tangent to the equator. Good for equatorial regions but greatly distorted at high latitudes. This one of the oldest and most common projectionsThe maps in Mercator projection have a great importance in maritime and air navigation, due to the fact that it is a conform projection and the cartographic network formed in perpendicular lines, the loxodrome will be a straight line. The same line makes with each projection of the meridians the same azimuth. The UTM system that uses the Mercator projection can be used all over the wo...
The areas affected by the mining exploitations are mono-industrial and the appearance of potentia... more The areas affected by the mining exploitations are mono-industrial and the appearance of potential directions for developing them are very linked to the results of the influence of these mining exploitations over the environment. The effects of the underground mining exploitations are the displacement and deformation of the terrain around the exploitation. To study the influence of this underground exploitation over the area is necessary for putting into evidence the phenomenon of displacement and taking the measures for protecting the objectives executed on the surface and the surface itself. So, the development of the infrastructure, the tourism, services, the implementation of different projects in order to have a sustainable development of Petrosani town must be made by analyzing very carefully the phenomenon of displacement and deformation of the terrestrial area under the influence of the underground exploitation.
The main purpose of this research is to study the dynamics of an agricultural parcel based on spe... more The main purpose of this research is to study the dynamics of an agricultural parcel based on spectral information obtained from Rapid Eye satellite images between May to September 2016. The dynamics of vegetation was differently expressed by the NDVI, SAVI and MSAVI2 indices determined based on spectral information. Starting from the Rapid Eye satellite imagessomespectral information characterizing the studied areas were extracted, based on spectral bands. R, G, B, Red Edge, NIR. Three vegetation indices (NDVI, SAVI and MSAVI2) have been computed and interpreted.
Fractal analysis was used to evaluate the degree of agricultural lands fragmentation. An area in ... more Fractal analysis was used to evaluate the degree of agricultural lands fragmentation. An area in the Western Plain, Romania was studied. The image was taken with the RapidEye satellite system. From the basic image, 10 polygons with equal resolution of 735 x 840 pixels were selected. For each studied polygon, the total surface (TS), the number of plots (PN), the average plot area (APA), and the fractal dimension (D) were determined. Fractal analysis was performed using the box counting method. The correlation analysis revealed a moderate, negative, correlation between PN and APA (r=-0.776), strong negative correlation between D and PN (r=-0.871), respectively a very strong, positive, correlation between D and APA (r=0.935). APA variation according to PN was most faithfully described by a smoothing spline model. Variation of fractal dimension D according to PN was described by a polynomial equation of degree 2, in conditions of R=0.946, p<< 0.01, and the variation of D according...
Many images of agricultural crops are made at different times of the day, images with different s... more Many images of agricultural crops are made at different times of the day, images with different spectral information about the same crop in relation to conditions when the picture was taken. A set of 30 digital images of a wheat crop in the BBCH 3-Stem elongation code 32–33 stage was captured between 9 am and 14 (UTC+3), in the 0°–180° variation range of the image acquisition angle on the E-W axis (cardinal directions). A high variation of the spectral data given by the combination of the hour (h) and angle (a) at which the images were captured was found. The interdependence relationship between the analyzed parameters (r, g, and b), and the time (t) and the angle (a) of image acquisition was assessed with the linear correlation coefficient. By calculating the roots of the mathematical expressions of the correlation coefficients dependence on the angles (a) or times of day (t), the optimal angle and time were determined as a combination of the two variables for capturing images and ...
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