Pub Date : 2023-09-20DOI: 10.22389/0016-7126-2023-998-8-57-64
V.F. Kovyazin, T.A. Nguyen, T.T. Nguyen
In recent years, cloud computing technology has become increasingly useful and practical in many fields, including forestry. Monitoring forest dynamics throughout a relatively large area requires collecting a large amount of input data, and processing it is very complex and time-consuming. In this study, we demonstrated the potential of applying cloud computing technology in the Google Earth Engine platform, in conjunction with remote sensing data to monitor forest land changes in Kon Tum province, Vietnam. The use of the javascript editor on Google Earth Engine (GEE) automated the process of collecting and processing remote sensing data to meet the specified criteria, while saving time, effort, and computer resources. Computing the normalized difference vegetation index and classifying land cover types using the Random Forest machine learning method on the GEE platform also showed accuracy in representing the distribution of vegetation cover and evaluating the status and changes in forest areas in Kon Tum province. The study showed that the policies of Kon Tum province administration in recent years have had a positive impact on restoring natural forest areas and reducing resource losses. So, the application of remote sensing data on the cloud computing platform of Google Earth Engine is a promising method for conserving and managing forest resources in Kon Tum province and throughout Vietnam
{"title":"Monitoring the forest fund lands of Kon Tum province, Vietnam using remote sensing data of Earth","authors":"V.F. Kovyazin, T.A. Nguyen, T.T. Nguyen","doi":"10.22389/0016-7126-2023-998-8-57-64","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-998-8-57-64","url":null,"abstract":"In recent years, cloud computing technology has become increasingly useful and practical in many fields, including forestry. Monitoring forest dynamics throughout a relatively large area requires collecting a large amount of input data, and processing it is very complex and time-consuming. In this study, we demonstrated the potential of applying cloud computing technology in the Google Earth Engine platform, in conjunction with remote sensing data to monitor forest land changes in Kon Tum province, Vietnam. The use of the javascript editor on Google Earth Engine (GEE) automated the process of collecting and processing remote sensing data to meet the specified criteria, while saving time, effort, and computer resources. Computing the normalized difference vegetation index and classifying land cover types using the Random Forest machine learning method on the GEE platform also showed accuracy in representing the distribution of vegetation cover and evaluating the status and changes in forest areas in Kon Tum province. The study showed that the policies of Kon Tum province administration in recent years have had a positive impact on restoring natural forest areas and reducing resource losses. So, the application of remote sensing data on the cloud computing platform of Google Earth Engine is a promising method for conserving and managing forest resources in Kon Tum province and throughout Vietnam","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136375034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-20DOI: 10.22389/0016-7126-2023-997-7-24-37
T. Vereschaka, A. A. Ivanova
The type of specialized topographical map for environmental protection, developed on the example of wetlands’ image, is substantiated. Such areas are protected by a number of international organizations and conventions. The requirements for them from a number of related areas of the economy, scientific research, for arrangement of rational environmental management, using specialized maps and protection of natural resources are determined. The concept of the map is formulated, in accordance with which the sections of its content are developed; they characterize the natural, disturbed state, and environmental protection of wetlands. The program of geographical characteristics is presented as an addition to the original map. Samples of images of bog complexes are proposed, showing the physiognomic varieties of swamps in various latitudinal zones. The general system and structure of the map content, conventional signs, samples of bog complexes are illustrated
{"title":"Specialized topographic map of environmental protection: concept and content system","authors":"T. Vereschaka, A. A. Ivanova","doi":"10.22389/0016-7126-2023-997-7-24-37","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-997-7-24-37","url":null,"abstract":"\u0000The type of specialized topographical map for environmental protection, developed on the example of wetlands’ image, is substantiated. Such areas are protected by a number of international organizations and conventions. The requirements for them from a number of related areas of the economy, scientific research, for arrangement of rational environmental management, using specialized maps and protection of natural resources are determined. The concept of the map is formulated, in accordance with which the sections of its content are developed; they characterize the natural, disturbed state, and environmental protection of wetlands. The program of geographical characteristics is presented as an addition to the original map. Samples of images of bog complexes are proposed, showing the physiognomic varieties of swamps in various latitudinal zones. The general system and structure of the map content, conventional signs, samples of bog complexes are illustrated\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48537326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-20DOI: 10.22389/0016-7126-2023-997-7-55-64
A. Rybkina, P. Demidova, O. Kolesnik
The authors discuss the features of the gas stations cadastral state registration as structures. The inaccuracy of information on the description of contours and main characteristics of real estate objects in the data of the Unified State Register of Real Estate, caused by the lack of a unified methodology, was revealed. In order to reduce the influence of the subjective component and avoid inconsistencies, it is necessary to adopt a single model standard for cadastral works on gas stations. We propose their specification as cadastral registration units, which means uniform immovable complexes, whose practical application will enable preserving information on the characteristics of real estate objects as part of the whole construction, as well as taking most correctly into account their design features by determining the coordinates of all characteristic points of contours of different types. This will contribute to improving the safety level of the gas station complex operating and implementing technology unity principle for maintaining a Unified State Register of Real Estate throughout the territory of the Russian Federation
{"title":"Specification of a gas station as an object of cadastral registration","authors":"A. Rybkina, P. Demidova, O. Kolesnik","doi":"10.22389/0016-7126-2023-997-7-55-64","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-997-7-55-64","url":null,"abstract":"\u0000The authors discuss the features of the gas stations cadastral state registration as structures. The inaccuracy of information on the description of contours and main characteristics of real estate objects in the data of the Unified State Register of Real Estate, caused by the lack of a unified methodology, was revealed. In order to reduce the influence of the subjective component and avoid inconsistencies, it is necessary to adopt a single model standard for cadastral works on gas stations. We propose their specification as cadastral registration units, which means uniform immovable complexes, whose practical application will enable preserving information on the characteristics of real estate objects as part of the whole construction, as well as taking most correctly into account their design features by determining the coordinates of all characteristic points of contours of different types. This will contribute to improving the safety level of the gas station complex operating and implementing technology unity principle for maintaining a Unified State Register of Real Estate throughout the territory of the Russian Federation\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44676905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-20DOI: 10.22389/0016-7126-2023-997-7-2-13
N. Bovshin
In this paper we continue to study the statistical properties of adjusted station coordinates in permanent geodetic networks. Analytical constructing the variance-covariance matrix of the measured vectors redundant set’s coordinates taking into account the covariances between vectors with common stations, is performed. The main attributes of this matrix are shown.Analytical modeling the adjustment of the measured vectors’ redundant set, which has such attributes, is performed. The variance-covariance matrix of the vector network’s adjusted coordinates is obtained and its properties are analyzed. It is shown that at using a simplified method for constructing such network, which neglects correlations between the errors of the measured baselines, the accuracy of its solution is overestimated, but the structure of the covariance matrix does not change. Analytical modeling of the network’s behavior in time is done, taking into account its possible internal dynamics, i.e. temporal changes of the geodetic stations’ relative positions that form it. It is shown that a dynamic vector solution has the same properties as the individual ones which make it, if they use redundant sets of measured vectors of the same type
{"title":"Analysis of regional geodetic GNSS networks properties built through the relative method. Complete case","authors":"N. Bovshin","doi":"10.22389/0016-7126-2023-997-7-2-13","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-997-7-2-13","url":null,"abstract":"\u0000In this paper we continue to study the statistical properties of adjusted station coordinates in permanent geodetic networks. Analytical constructing the variance-covariance matrix of the measured vectors redundant set’s coordinates taking into account the covariances between vectors with common stations, is performed. The main attributes of this matrix are shown.Analytical modeling the adjustment of the measured vectors’ redundant set, which has such attributes, is performed. The variance-covariance matrix of the vector network’s adjusted coordinates is obtained and its properties are analyzed. It is shown that at using a simplified method for constructing such network, which neglects correlations between the errors of the measured baselines, the accuracy of its solution is overestimated, but the structure of the covariance matrix does not change. Analytical modeling of the network’s behavior in time is done, taking into account its possible internal dynamics, i.e. temporal changes of the geodetic stations’ relative positions that form it. It is shown that a dynamic vector solution has the same properties as the individual ones which make it, if they use redundant sets of measured vectors of the same type\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45710004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-20DOI: 10.22389/0016-7126-2023-997-7-14-23
A. Mareev
For transition from the coordinate system CS-42 to the Earth-centered, Earth-fixed SCS-2011, correct transformation models are required. Such a model is a non-linear transformation of coordinate systems via the grid shift method. The Data Grid of transformation parameters from CS-42, CS-95 to SCS-2011 were developed in 2016 at the Federal Scientific and Technical Center of Geodesy, Cartography and Spatial Data Infrastructure and are called deformation matrices of CS-95 (CS-42). The accuracy of coordinate transformation is declared as 10 cm for areas with a high density of state geodetic network points. The author presents the results of the deformation matrix analysis for the Republic of Bashkortostan. Evaluation of errors in it due to violation of the mesh irregularity is presented. Recommendations for improving the model are given
{"title":"Investigation results of deformation matrixes for the CS-42 coordinate system","authors":"A. Mareev","doi":"10.22389/0016-7126-2023-997-7-14-23","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-997-7-14-23","url":null,"abstract":"\u0000For transition from the coordinate system CS-42 to the Earth-centered, Earth-fixed SCS-2011, correct transformation models are required. Such a model is a non-linear transformation of coordinate systems via the grid shift method. The Data Grid of transformation parameters from CS-42, CS-95 to SCS-2011 were developed in 2016 at the Federal Scientific and Technical Center of Geodesy, Cartography and Spatial Data Infrastructure and are called deformation matrices of CS-95 (CS-42). The accuracy of coordinate transformation is declared as 10 cm for areas with a high density of state geodetic network points. The author presents the results of the deformation matrix analysis for the Republic of Bashkortostan. Evaluation of errors in it due to violation of the mesh irregularity is presented. Recommendations for improving the model are given\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46563515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-20DOI: 10.22389/0016-7126-2023-997-7-47-54
A. Astapovich, K.K. Zhbanov
The method of combining digital terrain models based on the results of photogrammetric processing optoelectronic stereo photographs and interferometric one of radar images developed in the view of the least squares principle is substantiated in the article. The necessary formulas for assessing the impact of systematic errors in jointly handled data sets are given. As a result of analyzing the systematic errors influence in setting the beginning of the height calculation in alternative models on the values of the combined relief model parameters, it is shown that it is impossible to estimate and completely exclude systematic errors of the desired characteristics of the combined relief model without involving additional measurement information. The methodology of the approach to the suppression of the mentioned mistakes in determining the required data is theoretically justified with the necessary mathematical expressions for the implementation of the stages of the proposed techniques based on a comparison of the height matrices obtained through the least squares method and the materials of space laser altimeters
{"title":"Construction of digital terrain models based on remote sensing data of inaccessible continental areas","authors":"A. Astapovich, K.K. Zhbanov","doi":"10.22389/0016-7126-2023-997-7-47-54","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-997-7-47-54","url":null,"abstract":"\u0000The method of combining digital terrain models based on the results of photogrammetric processing optoelectronic stereo photographs and interferometric one of radar images developed in the view of the least squares principle is substantiated in the article. The necessary formulas for assessing the impact of systematic errors in jointly handled data sets are given. As a result of analyzing the systematic errors influence in setting the beginning of the height calculation in alternative models on the values of the combined relief model parameters, it is shown that it is impossible to estimate and completely exclude systematic errors of the desired characteristics of the combined relief model without involving additional measurement information. The methodology of the approach to the suppression of the mentioned mistakes in determining the required data is theoretically justified with the necessary mathematical expressions for the implementation of the stages of the proposed techniques based on a comparison of the height matrices obtained through the least squares method and the materials of space laser altimeters\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46816554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-20DOI: 10.22389/0016-7126-2023-997-7-38-46
I. N. Penshin
In this paper, we consider the Unified Camera Model and its properties, as well as investigate and apply the improved Double-Spherical one (DS-model) in the task of restoring exterior and interior orientation elements for a set of images with ultra-wide-angle fisheye lens. The use of panoramic cameras in photogrammetry issues is a new trend, while the spherical model fully inherits the properties of the classical central-projection sample. The mathematical concept of using it is presented, as well as the solution of the optimization problem of calculating the elements of the internal and external orientation of the camera through the Gauss-Newton method, which is relevant for the tasks of reconstructing a three-dimensional scene and developing an optical SLAM based on a multi-camera system with ultra-wide-angle lenses, is implemented. In this work, epipolar geometry methods, digital image processing methods, statistical, numerical, and optimization ones were used. The results obtained enable evaluating the applicability of the DS-model for three-dimensional reconstruction of scenes during external and internal monitoring of buildings and structures, restoration of the motion trajectory and position in space for mobile systems with an installed camera, solving matters such as Perspective-n-Point for restoring the relative orientation between different active and passive sensors
{"title":"Application of a spherical camera model for solving photogrammetric tasks","authors":"I. N. Penshin","doi":"10.22389/0016-7126-2023-997-7-38-46","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-997-7-38-46","url":null,"abstract":"\u0000In this paper, we consider the Unified Camera Model and its properties, as well as investigate and apply the improved Double-Spherical one (DS-model) in the task of restoring exterior and interior orientation elements for a set of images with ultra-wide-angle fisheye lens. The use of panoramic cameras in photogrammetry issues is a new trend, while the spherical model fully inherits the properties of the classical central-projection sample. The mathematical concept of using it is presented, as well as the solution of the optimization problem of calculating the elements of the internal and external orientation of the camera through the Gauss-Newton method, which is relevant for the tasks of reconstructing a three-dimensional scene and developing an optical SLAM based on a multi-camera system with ultra-wide-angle lenses, is implemented. In this work, epipolar geometry methods, digital image processing methods, statistical, numerical, and optimization ones were used. The results obtained enable evaluating the applicability of the DS-model for three-dimensional reconstruction of scenes during external and internal monitoring of buildings and structures, restoration of the motion trajectory and position in space for mobile systems with an installed camera, solving matters such as Perspective-n-Point for restoring the relative orientation between different active and passive sensors\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44237441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-20DOI: 10.22389/0016-7126-2023-996-6-42-49
A. Verkhoturov
Areas of active volcanism are characterized by significant transformation of many environmental components and are potentially dangerous at economic development. The purpose of the work is to assess spatial and temporal transformation of Matua Island territory caused by activity of Sarychev Peak volcano. The author analyzes a series of Landsat satellites photos from 1972 to 2022. The spatial dynamics of the coastline was studied based on synthesized images (NIR-SWIR-RED). In the research of vegetation transformation, a time series of normalized relative index (NDVI) was used. The time course analysis of changing Matua Island area, maximum and average values of NDVI within its limits, and a sketch map of spatial and temporal transformation of the research territory were made. Relatively rare and strong eruptions of Sarychev Peak volcano lead to significant changes of Matua Island, which mainly affects the state of the vegetation cover and restructuring of the relief. There is a relatively rapid succession, especially in the areas where thickness of volcanic deposits has not exceeded for several tens of centimeters. Accumulation of pyroclastic material caused an increase in the space of the island by 0,87 km2, but 0,52 km2 was blurred by the sea during 13 years. The research shows the nature of the danger and transformation of the territories in zones of active volcanism, which must be taken into account at solving issues related to economic development, cadastral assessment and arranging these lands monitoring.
{"title":"Assessing spatial and temporal transformation of Matua Island territory caused by the activity of Sarychev Peak volcano","authors":"A. Verkhoturov","doi":"10.22389/0016-7126-2023-996-6-42-49","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-996-6-42-49","url":null,"abstract":"\u0000Areas of active volcanism are characterized by significant transformation of many environmental components and are potentially dangerous at economic development. The purpose of the work is to assess spatial and temporal transformation of Matua Island territory caused by activity of Sarychev Peak volcano. The author analyzes a series of Landsat satellites photos from 1972 to 2022. The spatial dynamics of the coastline was studied based on synthesized images (NIR-SWIR-RED). In the research of vegetation transformation, a time series of normalized relative index (NDVI) was used. The time course analysis of changing Matua Island area, maximum and average values of NDVI within its limits, and a sketch map of spatial and temporal transformation of the research territory were made. Relatively rare and strong eruptions of Sarychev Peak volcano lead to significant changes of Matua Island, which mainly affects the state of the vegetation cover and restructuring of the relief. There is a relatively rapid succession, especially in the areas where thickness of volcanic deposits has not exceeded for several tens of centimeters. Accumulation of pyroclastic material caused an increase in the space of the island by 0,87 km2, but 0,52 km2 was blurred by the sea during 13 years. The research shows the nature of the danger and transformation of the territories in zones of active volcanism, which must be taken into account at solving issues related to economic development, cadastral assessment and arranging these lands monitoring.\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47061197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-20DOI: 10.22389/0016-7126-2023-996-6-19-29
G. Titov, P. Kargashin
The authors describe an approach to modeling large volumes of heterogeneous spatial data in the form of a hypercube based on discrete global grid systems. Bibliometric analysis and literature review of academic publications, mapping and explanation of the scientific landscape on the subject of big data and data cubes in Earth sciences are carried out. The mentioned phenomenon is interpreted in Earth sciences in the view of the spatial data life cycle. The results show that its transformative impact on cartography and geoinformatics is mutual, and the resulting methodological problem is their heterogeneity, not volume. To model them, it is proposed to use a data cube in which the spatial dimension is represented using discrete global grid systems with advantages over raster and vector models in application to that phenomenon. The content of the data cube is analysis-ready information.
{"title":"Big spatial data modeling using data cube based on discrete global grid system","authors":"G. Titov, P. Kargashin","doi":"10.22389/0016-7126-2023-996-6-19-29","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-996-6-19-29","url":null,"abstract":"\u0000The authors describe an approach to modeling large volumes of heterogeneous spatial data in the form of a hypercube based on discrete global grid systems. Bibliometric analysis and literature review of academic publications, mapping and explanation of the scientific landscape on the subject of big data and data cubes in Earth sciences are carried out. The mentioned phenomenon is interpreted in Earth sciences in the view of the spatial data life cycle. The results show that its transformative impact on cartography and geoinformatics is mutual, and the resulting methodological problem is their heterogeneity, not volume. To model them, it is proposed to use a data cube in which the spatial dimension is represented using discrete global grid systems with advantages over raster and vector models in application to that phenomenon. The content of the data cube is analysis-ready information.\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47749841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-20DOI: 10.22389/0016-7126-2023-996-6-12-18
O. Byamba
The author considers creating a relief model for a digital tourist sketch of the territory of Khentii aimag, Mongolia, as the first stage of creating an electronic map. The initial materials used in drawing up its geographical basis are listed, the main technical solutions for making the relief map of the geographical basis for the territory of Khentii Aimag, Mongolia, are considered. To perform the construction of a digital terrain model (DTM), Spatial Analyst and ArcMap modules were used; they are part of Esri`s ArcGIS10 software, the most widely used one in our country. The proposed method of displaying the relief will enable not only visualizing it in two-dimensional form or as three-dimensional surfaces, but also calculating various morphometric parameters there, such as the slope of the surface, exposure and curvature of slopes, and many more. On the basis of the DTM, visibility zones are constructed (territories visible from the selected observation point taking into account the actual landscape), the volumes of embankments and recesses are calculated; water flow paths along the surface are determined and catchment basins are allocated. After constructing the DEM, a hydrography model is superimposed on it and then the thematic content of the tourist map, namely, unique natural and historical monuments of Mongolia, located in the database of maps created for the first time. The proposed basic solution in the method of terrain mapping can be used to improve and create a geoportal “Tourism of Mongolia”.
{"title":"Using a digital terrain model to create a geographical basis for a tourist map of the Aimag Khentii (Mongolia)","authors":"O. Byamba","doi":"10.22389/0016-7126-2023-996-6-12-18","DOIUrl":"https://doi.org/10.22389/0016-7126-2023-996-6-12-18","url":null,"abstract":"\u0000The author considers creating a relief model for a digital tourist sketch of the territory of Khentii aimag, Mongolia, as the first stage of creating an electronic map. The initial materials used in drawing up its geographical basis are listed, the main technical solutions for making the relief map of the geographical basis for the territory of Khentii Aimag, Mongolia, are considered. To perform the construction of a digital terrain model (DTM), Spatial Analyst and ArcMap modules were used; they are part of Esri`s ArcGIS10 software, the most widely used one in our country. The proposed method of displaying the relief will enable not only visualizing it in two-dimensional form or as three-dimensional surfaces, but also calculating various morphometric parameters there, such as the slope of the surface, exposure and curvature of slopes, and many more. On the basis of the DTM, visibility zones are constructed (territories visible from the selected observation point taking into account the actual landscape), the volumes of embankments and recesses are calculated; water flow paths along the surface are determined and catchment basins are allocated. After constructing the DEM, a hydrography model is superimposed on it and then the thematic content of the tourist map, namely, unique natural and historical monuments of Mongolia, located in the database of maps created for the first time. The proposed basic solution in the method of terrain mapping can be used to improve and create a geoportal “Tourism of Mongolia”.\u0000","PeriodicalId":35691,"journal":{"name":"Geodeziya i Kartografiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42938347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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