The European Commission (EC) originally proposed ideas for a European Galileo satellite navigation system in 1999. A four-phase development is planned, involving investment from both the public and commercial sectors. Galileo is intended for both public and government use; the system is administered and operated by civil administration. Galileo will consist of a constellation of 30 satellites, a number of globally situated ground stations, and a ground control and monitoring system – all of which are quite similar to the structure, format, and layout of GPS. This document discusses an experiment at the project site that used the static approach to integrate GPS, GLONASS, GALILEO, Beidou, and QZSS signals. This research analyses the possible precision of GPS-only and GPS/GLONASS/GALILEO/Beidou/QZSS. These results suggest that combining a GPS system with GALILEO, GLONASS Beidou, and QZSS is preferable for surveying purposes. Integrating GPS/GLONASS/GALILEO/Beidou/QZSS static measurements in the study region with 0–120 millimetre accuracy looks to be possible in three days.
{"title":"TESTING THE CONTRIBUTION, ACCURACY AND PERFORMANCE OF MGEX (GNSS (GPS+GLONASS+GALILEO+BEIDOU+QZSS)) POSITIONING IN THE STUDY REGION","authors":"A. Pırtı","doi":"10.3846/gac.2023.17707","DOIUrl":"https://doi.org/10.3846/gac.2023.17707","url":null,"abstract":"The European Commission (EC) originally proposed ideas for a European Galileo satellite navigation system in 1999. A four-phase development is planned, involving investment from both the public and commercial sectors. Galileo is intended for both public and government use; the system is administered and operated by civil administration. Galileo will consist of a constellation of 30 satellites, a number of globally situated ground stations, and a ground control and monitoring system – all of which are quite similar to the structure, format, and layout of GPS. This document discusses an experiment at the project site that used the static approach to integrate GPS, GLONASS, GALILEO, Beidou, and QZSS signals. This research analyses the possible precision of GPS-only and GPS/GLONASS/GALILEO/Beidou/QZSS. These results suggest that combining a GPS system with GALILEO, GLONASS Beidou, and QZSS is preferable for surveying purposes. Integrating GPS/GLONASS/GALILEO/Beidou/QZSS static measurements in the study region with 0–120 millimetre accuracy looks to be possible in three days.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"50 19","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138948578","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}
DEM can be used optimally when it has good accuracy. Thus, assessing DEM data quality is mandatory before use it for specific thematic applications. Recently, there are open-source DEM data that can be downloaded and used freely by users, such as SRTM and ASTER GDEM. However, Indonesia tried to develop their own national seamless DEM, called DEMNAS. This study aims to evaluate the open-source DEMs that are popular in Indonesia: DEMNAS, SRTM-1, and ASTER GDEM. Accuracy assessment was conducted by comparing the DEMs to GPS measurements. The results showed that SRTM-1 had the best accuracy with 5.529 meters, followed by DEMNAS and ASTER GDEM with 8.172 meters and 13.632 meters, respectively. We also analyzed the linear relation between DEMs and GPS elevation data using the coefficient of determination, and all DEMs showed good R2 values. Lastly, the correlation between the error and the height of DEMs was also examined. The results were SRTM-1 had correlation between the height and accuracy, as well as ASTER GDEM. In contrast, the errors in DEMNAS were relatively uniform in all range of elevation.
如果 DEM 具有良好的精度，就能得到最佳利用。因此，在将 DEM 数据用于特定专题应用之前，必须对其质量进行评估。最近，有一些开放源码的 DEM 数据可供用户免费下载和使用，如 SRTM 和 ASTER GDEM。不过，印度尼西亚试图开发自己的国家无缝 DEM，即 DEMNAS。本研究旨在评估印尼流行的开放源码 DEM：DEMNAS、SRTM-1 和 ASTER GDEM。通过将 DEM 与 GPS 测量结果进行比较，对精度进行了评估。结果显示，SRTM-1 的精度最高，为 5.529 米，其次是 DEMNAS 和 ASTER GDEM，分别为 8.172 米和 13.632 米。我们还利用判定系数分析了 DEM 与 GPS 高程数据之间的线性关系，所有 DEM 都显示出良好的 R2 值。最后，我们还研究了 DEM 误差与高度之间的相关性。结果表明，SRTM-1 和 ASTER GDEM 的高度与精度之间具有相关性。相比之下，DEMNAS 的误差在所有高度范围内都相对均匀。
{"title":"VERTICAL ACCURACY ASSESSMENT OF VARIOUS OPEN-SOURCE DEM DATA: DEMNAS, SRTM-1, AND ASTER GDEM","authors":"D. B. Susetyo","doi":"10.3846/gac.2023.18168","DOIUrl":"https://doi.org/10.3846/gac.2023.18168","url":null,"abstract":"DEM can be used optimally when it has good accuracy. Thus, assessing DEM data quality is mandatory before use it for specific thematic applications. Recently, there are open-source DEM data that can be downloaded and used freely by users, such as SRTM and ASTER GDEM. However, Indonesia tried to develop their own national seamless DEM, called DEMNAS. This study aims to evaluate the open-source DEMs that are popular in Indonesia: DEMNAS, SRTM-1, and ASTER GDEM. Accuracy assessment was conducted by comparing the DEMs to GPS measurements. The results showed that SRTM-1 had the best accuracy with 5.529 meters, followed by DEMNAS and ASTER GDEM with 8.172 meters and 13.632 meters, respectively. We also analyzed the linear relation between DEMs and GPS elevation data using the coefficient of determination, and all DEMs showed good R2 values. Lastly, the correlation between the error and the height of DEMs was also examined. The results were SRTM-1 had correlation between the height and accuracy, as well as ASTER GDEM. In contrast, the errors in DEMNAS were relatively uniform in all range of elevation.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"33 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138955863","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}
J. Odumosu, V. C. Nnam, O. Kemiki, Abdulkadir Abubarkar, Michael A. Oyebanji, Sunday O. Babalola
The need for the adoption of systematic land titling (SLT) in Nigeria cannot be overemphasised. Nonetheless, the problems of speed and cost of geospatial data acquisition, as well as identification of non-surveyed boundaries, remain unresolved, impeding the effectiveness of SLT for non-surveyed boundaries. The integration of language into Artificial Intelligence (AI) has allowed Natural Language Parsing (NLP) to effectively serve as a tool for communication between humans and computer systems. This study presents preliminary results of testing a prototype application that utilises NLP to convert textual descriptions into graphic sketches as a tool towards the production of a-priori sketches that can aid SLT in non-surveyed boundaries. The study determines that NLP alone cannot be used to achieve the required accuracy in geospatial data for SLT; however, the study concludes that NLP can be integrated alongside other ancillary information to enhance SLT in peri-urban regions.
{"title":"APPLICATION OF NATURAL LANGUAGE PARSING FOR IDENTIFYING NON-SURVEYED BOUNDARIES TOWARDS ENHANCED SYSTEMATIC LAND TITLING: RESULTS FROM PRELIMINARY EXPERIMENT","authors":"J. Odumosu, V. C. Nnam, O. Kemiki, Abdulkadir Abubarkar, Michael A. Oyebanji, Sunday O. Babalola","doi":"10.3846/gac.2023.18111","DOIUrl":"https://doi.org/10.3846/gac.2023.18111","url":null,"abstract":"The need for the adoption of systematic land titling (SLT) in Nigeria cannot be overemphasised. Nonetheless, the problems of speed and cost of geospatial data acquisition, as well as identification of non-surveyed boundaries, remain unresolved, impeding the effectiveness of SLT for non-surveyed boundaries. The integration of language into Artificial Intelligence (AI) has allowed Natural Language Parsing (NLP) to effectively serve as a tool for communication between humans and computer systems. This study presents preliminary results of testing a prototype application that utilises NLP to convert textual descriptions into graphic sketches as a tool towards the production of a-priori sketches that can aid SLT in non-surveyed boundaries. The study determines that NLP alone cannot be used to achieve the required accuracy in geospatial data for SLT; however, the study concludes that NLP can be integrated alongside other ancillary information to enhance SLT in peri-urban regions.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"6 18","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138994405","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}
D. Pratomo, Rizka Amelia Dwi Safira, Olivia Stefani
The bottom surface’s portrayal is crucial in many different practices. Therefore, accurate bathymetry data is required. The interpolation method is one element that influences the accuracy of a Single Beam Echosounder’s depth data. IDW, Kriging, and TIN are three standard interpolation techniques. This study compares these three methods with two scenarios utilizing the spatial analysis to establish the most effective technique for producing the digital elevation model of the seafloor beneath Bawean Island. The IDW exhibits the strongest R-squared (0.9998779 in Scenario-1 and 0.9999875 in Scenario-2) and correlation (0.9998796 in Scenario-1 and 0.9999595 in Scenario-2). It indicates that IDW and bathymetric data have the closest relationships. IDW has the lowest error, as measured by the MAE value (0.02 in Scenario-1 and 0.009 in Scenario-2), followed in both cases by Kriging and TIN. Additionally, the RMSE for IDW shows the same outcome (0.045 in Scenario 1 and 0.016 in Scenario 2). In the meantime, comparing the first and second scenarios reveals that the second, which has fewer data, is preferable to the first. Since the MAE and RMSE in the first scenario are greater than those in the second, we may infer that more data leads to more significant errors.
底面的描绘在许多不同的实践中都至关重要。因此，需要精确的测深数据。插值方法是影响单波束回声测深仪深度数据准确性的因素之一。IDW、Kriging 和 TIN 是三种标准的插值技术。本研究将这三种方法与利用空间分析的两种方案进行比较，以确定制作巴威恩岛海底数字高程模型的最有效技术。IDW 显示出最强的 R 平方（方案 1 为 0.9998779，方案 2 为 0.9999875）和相关性（方案 1 为 0.9998796，方案 2 为 0.9999595）。这表明 IDW 和测深数据的关系最为密切。从 MAE 值来看，IDW 的误差最小（方案 1 为 0.02，方案 2 为 0.009），其次是克里金法和 TIN 法。此外，IDW 的 RMSE 也显示了相同的结果（方案 1 中为 0.045，方案 2 中为 0.016）。同时，比较第一种和第二种方案可以发现，数据较少的第二种方案优于第一种方案。由于第一种方案的 MAE 和 RMSE 大于第二种方案，我们可以推断数据越多，误差越大。
{"title":"A COMPARISON OF DIFFERENT GIS-BASED INTERPOLATION METHODS FOR BATHYMETRIC DATA: CASE STUDY OF BAWEAN ISLAND, EAST JAVA","authors":"D. Pratomo, Rizka Amelia Dwi Safira, Olivia Stefani","doi":"10.3846/gac.2023.18250","DOIUrl":"https://doi.org/10.3846/gac.2023.18250","url":null,"abstract":"The bottom surface’s portrayal is crucial in many different practices. Therefore, accurate bathymetry data is required. The interpolation method is one element that influences the accuracy of a Single Beam Echosounder’s depth data. IDW, Kriging, and TIN are three standard interpolation techniques. This study compares these three methods with two scenarios utilizing the spatial analysis to establish the most effective technique for producing the digital elevation model of the seafloor beneath Bawean Island. The IDW exhibits the strongest R-squared (0.9998779 in Scenario-1 and 0.9999875 in Scenario-2) and correlation (0.9998796 in Scenario-1 and 0.9999595 in Scenario-2). It indicates that IDW and bathymetric data have the closest relationships. IDW has the lowest error, as measured by the MAE value (0.02 in Scenario-1 and 0.009 in Scenario-2), followed in both cases by Kriging and TIN. Additionally, the RMSE for IDW shows the same outcome (0.045 in Scenario 1 and 0.016 in Scenario 2). In the meantime, comparing the first and second scenarios reveals that the second, which has fewer data, is preferable to the first. Since the MAE and RMSE in the first scenario are greater than those in the second, we may infer that more data leads to more significant errors.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"7 24","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959808","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}
Turbidity is an important water quality parameter and an indicator of water pollution. Marine remote sensing techniques has become a useful tool for mapping of turbidity at coastal waters. The advantage of using remote sensing for water quality analysis is its ability to obtain synoptic data from the entire study area to produce continuous surface data, can shows detailed spatial variability and periodically. The empirical modeling has been applied in this study to formulate the mathematical relationship between coastal waters turbidity with Sentinel-2 reflectance. This study integrated field survey and image processing. Measurement of in-situ turbidity was done in accordance with imagery acquisition time. Imageries used for this study were Sentinel-2 level-2A. The mathematical relationship was obtained by multiple linear regression model between turbidity and Sentinel-2 reflectance. A mathematical model has been developed in Sentinel-2 imagery and successfully applied to obtain surface turbidity. Estimated turbidity derived from Sentinel-2 imagery is very close to observed turbidity so the proposed model can be used to retrieve turbidity of coastal waters.
{"title":"ESTIMATION OF COASTAL WATERS TURBIDITY USING SENTINEL-2 IMAGERY","authors":"Muhammad Anshar Amran, W. Daming","doi":"10.3846/gac.2023.18132","DOIUrl":"https://doi.org/10.3846/gac.2023.18132","url":null,"abstract":"Turbidity is an important water quality parameter and an indicator of water pollution. Marine remote sensing techniques has become a useful tool for mapping of turbidity at coastal waters. The advantage of using remote sensing for water quality analysis is its ability to obtain synoptic data from the entire study area to produce continuous surface data, can shows detailed spatial variability and periodically. The empirical modeling has been applied in this study to formulate the mathematical relationship between coastal waters turbidity with Sentinel-2 reflectance. This study integrated field survey and image processing. Measurement of in-situ turbidity was done in accordance with imagery acquisition time. Imageries used for this study were Sentinel-2 level-2A. The mathematical relationship was obtained by multiple linear regression model between turbidity and Sentinel-2 reflectance. A mathematical model has been developed in Sentinel-2 imagery and successfully applied to obtain surface turbidity. Estimated turbidity derived from Sentinel-2 imagery is very close to observed turbidity so the proposed model can be used to retrieve turbidity of coastal waters.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":" 1180","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960159","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}
The 2014 North Aegean Sea earthquake was a strong (Mw 6.9) event that caused significant crustal deformations. In the present study we investigate the long-term impact of the earthquake on the kinematics of the North Aegean Trough (NAT). For this purpose, we analyzed GPS observations collected from May 2010 to April 2022 at five permanent GPS reference stations. Two of these stations are located close to the epicenter(s) on the Islands of Lemnos and Samothrace. We processed the data using the Precise Point Positioning (PPP) technique. The analysis of the obtained coordinate time-series revealed a post-seismic deformation (PSD) period lasting for more than two years leading to cumulative 2D post-seismic displacement of 22 mm and 27 mm for Samothrace and Lemnos, respectively. The magnitudes of these post-seismic slip vectors correspond to 23% and 49% of the co-seismic vectors at Samothrace and Lemnos, respectively. The long-term analysis showed that after the end of the PSD period the stations are characterized by stable velocities that are noticeably different compared to the velocities prior to the event. We observed a change in the velocity in the order of 2 mm/yr for both Samothrace and Lemnos. It is the first time that PSD and velocity changes have been reported for the 2014 North Aegean Sea earthquake shedding light on the characteristics and the impact of this important earthquake on the kinematics of NAT.
{"title":"GEODETIC EVIDENCE FOR POST-SEISMIC DEFORMATIONS FOLLOWING THE 2014 NORTH AEGEAN MW 6.9 EARTHQUAKE","authors":"M. Gianniou, P. Argyrakis, Tatiani Prasinou","doi":"10.3846/gac.2023.19369","DOIUrl":"https://doi.org/10.3846/gac.2023.19369","url":null,"abstract":"The 2014 North Aegean Sea earthquake was a strong (Mw 6.9) event that caused significant crustal deformations. In the present study we investigate the long-term impact of the earthquake on the kinematics of the North Aegean Trough (NAT). For this purpose, we analyzed GPS observations collected from May 2010 to April 2022 at five permanent GPS reference stations. Two of these stations are located close to the epicenter(s) on the Islands of Lemnos and Samothrace. We processed the data using the Precise Point Positioning (PPP) technique. The analysis of the obtained coordinate time-series revealed a post-seismic deformation (PSD) period lasting for more than two years leading to cumulative 2D post-seismic displacement of 22 mm and 27 mm for Samothrace and Lemnos, respectively. The magnitudes of these post-seismic slip vectors correspond to 23% and 49% of the co-seismic vectors at Samothrace and Lemnos, respectively. The long-term analysis showed that after the end of the PSD period the stations are characterized by stable velocities that are noticeably different compared to the velocities prior to the event. We observed a change in the velocity in the order of 2 mm/yr for both Samothrace and Lemnos. It is the first time that PSD and velocity changes have been reported for the 2014 North Aegean Sea earthquake shedding light on the characteristics and the impact of this important earthquake on the kinematics of NAT.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":" December","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960589","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}
: This article applies radar interferometry technologies implemented in the ENVI SARscape and SNAP software environment provided by the processing of data from the Sentinel-1 satellite. The study was carried out based on six radar images of Sentinel-1A and Sentinel -1B taken from September 2017 until February 2018 with an interval of one month and on the radar-module of the already mentioned SNAP software. The main input data for solving the considered problem are radar images received from the satellite Sentinel-1B on the territory of Stebnyk-Truskavets for six months with an interval of one month. Monitoring of the Earth’s surface using radar data of the Sentinel-1A with a synthesized aperture is implemented with the application of interferometric methods of Persistent Scatterers and Small baselines interferometry for estimating small displacements of the Earth’s surface and structures. The obtained quantitative and qualitative indicators of monitoring do not answer the processes that take place and lead to vertical displacements the six months but do provide an opportunity to assess the extent and trends of their development. The specification in each case can be accomplished by ground methods, which greatly simplify the search for sites with critical parameters of vertical displacements which can have negative consequences and lead to an emergency.
{"title":"Monitoring of displacements and deformations of the earth’s surface near the Stebnyk city using radar images of Sentinel-1","authors":"Ihor Trevoho, Borys Chetverikov, Lubov Babiy, Mariia Malanchuk","doi":"10.24425/gac.2020.131079","DOIUrl":"https://doi.org/10.24425/gac.2020.131079","url":null,"abstract":": This article applies radar interferometry technologies implemented in the ENVI SARscape and SNAP software environment provided by the processing of data from the Sentinel-1 satellite. The study was carried out based on six radar images of Sentinel-1A and Sentinel -1B taken from September 2017 until February 2018 with an interval of one month and on the radar-module of the already mentioned SNAP software. The main input data for solving the considered problem are radar images received from the satellite Sentinel-1B on the territory of Stebnyk-Truskavets for six months with an interval of one month. Monitoring of the Earth’s surface using radar data of the Sentinel-1A with a synthesized aperture is implemented with the application of interferometric methods of Persistent Scatterers and Small baselines interferometry for estimating small displacements of the Earth’s surface and structures. The obtained quantitative and qualitative indicators of monitoring do not answer the processes that take place and lead to vertical displacements the six months but do provide an opportunity to assess the extent and trends of their development. The specification in each case can be accomplished by ground methods, which greatly simplify the search for sites with critical parameters of vertical displacements which can have negative consequences and lead to an emergency.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"23 36","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135545538","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 : 2023-11-06DOI: 10.24425/gac.2020.131083
Ireneusz Winnicki
Fig. 1. Prof. Wojciech Pachelski Professor Wojciech Pachelski was born in April 1939 in Warsaw. He graduated the Warsaw Geodesic Secondary School and then the Faculty of Geodesy and Cartography of the Warsaw University of Technology in 1961. He worked as an assistant at the Institute of Geodesy and Cartography in 1961–1962, then (1962–1972) as an assistant professor at the Computing Center of the Polish Academy of Sciences in Warsaw. He defended his doctoral dissertation Some Solutions for Processing Observational and Orbital Numerical Data of Artificial Earth Satellites (Figure 2) at the Faculty of Geodesy and Cartography of the Warsaw University of Technology in 1966. Professor Tadeusz Trajdos, an outstanding Polish mathematician, a longtime employee of our University, was his thesis supervisor. Wojciech Pachelski, Ph.D. was employed at the Institute of Mathematical Machines in Warsaw (as an assistant professor – Head of Department) in 1972–1977. His work subjects included: applications of digital machines to the processing of satellite surveying and space experiments data; development of the sequential alignment method and its application to the experimental satellite triangulation network. In the following years (1977–2008) he worked as an assistant professor and professor (from 1994) at the Space Research Center of the Polish Academy of Sciences, where he continued research in the above fields. During this period, Professor Wojciech Pachelski’s textbooks for learning programming in Fortran – known all over Poland – were published. From these books, older MUT employees (including the author of this biography) learned Fortran IV programming for ODRA 1300 machines and Fortran 77.
{"title":"Obituary for Prof. Dr. Hab. Wojciech Pachelski. Two years death anniversary","authors":"Ireneusz Winnicki","doi":"10.24425/gac.2020.131083","DOIUrl":"https://doi.org/10.24425/gac.2020.131083","url":null,"abstract":"Fig. 1. Prof. Wojciech Pachelski Professor Wojciech Pachelski was born in April 1939 in Warsaw. He graduated the Warsaw Geodesic Secondary School and then the Faculty of Geodesy and Cartography of the Warsaw University of Technology in 1961. He worked as an assistant at the Institute of Geodesy and Cartography in 1961–1962, then (1962–1972) as an assistant professor at the Computing Center of the Polish Academy of Sciences in Warsaw. He defended his doctoral dissertation Some Solutions for Processing Observational and Orbital Numerical Data of Artificial Earth Satellites (Figure 2) at the Faculty of Geodesy and Cartography of the Warsaw University of Technology in 1966. Professor Tadeusz Trajdos, an outstanding Polish mathematician, a longtime employee of our University, was his thesis supervisor. Wojciech Pachelski, Ph.D. was employed at the Institute of Mathematical Machines in Warsaw (as an assistant professor – Head of Department) in 1972–1977. His work subjects included: applications of digital machines to the processing of satellite surveying and space experiments data; development of the sequential alignment method and its application to the experimental satellite triangulation network. In the following years (1977–2008) he worked as an assistant professor and professor (from 1994) at the Space Research Center of the Polish Academy of Sciences, where he continued research in the above fields. During this period, Professor Wojciech Pachelski’s textbooks for learning programming in Fortran – known all over Poland – were published. From these books, older MUT employees (including the author of this biography) learned Fortran IV programming for ODRA 1300 machines and Fortran 77.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"25 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135545849","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 : 2023-11-06DOI: 10.24425/gac.2021.136679
Nurlan Mammadli, Magsad Gojamanov
: Soil Erodibility Factor (K-factor) is a crucial component of a widely used equation for soil erosion assessment known as the USLE (Universal Soil Loss Equation) or its revised version – RUSLE. It reflects the potential of the soil of being detached due to rain-falls or runoffs. So far, an extensive number of researches provide different approaches and techniques in the evaluation of K-factor. This study applies soil erodibility estimation in the soils of the South Caucasian region using soil data prepared by the International Soil Reference and Information Centre (ISRIC) with 250 m resolution, whereas the recent K-factor estimation implemented in the EU scale was with 500 m resolution. Soil erodibility was assessed using an equation involving soil pH levels. The study utilises Trapesoidal equation of soil data processing and preparation, as suggested by ISRIC, for various layers of surface soil data with up to 0-30 cm depth. Both usage of SoilGrids data and its processing as well as estimation of K-factor applying soil pH levels have demonstrated sufficient capacity and accuracy in soil erodibility assessment. The final output result has revealed the K-factor values varying from 0.037 and more than 0.060 t ha h/MJ mm within the study area.
{"title":"High-resolution soil erodibility K-factor estimation using machine learning generated soil dataset and soil pH levels","authors":"Nurlan Mammadli, Magsad Gojamanov","doi":"10.24425/gac.2021.136679","DOIUrl":"https://doi.org/10.24425/gac.2021.136679","url":null,"abstract":": Soil Erodibility Factor (K-factor) is a crucial component of a widely used equation for soil erosion assessment known as the USLE (Universal Soil Loss Equation) or its revised version – RUSLE. It reflects the potential of the soil of being detached due to rain-falls or runoffs. So far, an extensive number of researches provide different approaches and techniques in the evaluation of K-factor. This study applies soil erodibility estimation in the soils of the South Caucasian region using soil data prepared by the International Soil Reference and Information Centre (ISRIC) with 250 m resolution, whereas the recent K-factor estimation implemented in the EU scale was with 500 m resolution. Soil erodibility was assessed using an equation involving soil pH levels. The study utilises Trapesoidal equation of soil data processing and preparation, as suggested by ISRIC, for various layers of surface soil data with up to 0-30 cm depth. Both usage of SoilGrids data and its processing as well as estimation of K-factor applying soil pH levels have demonstrated sufficient capacity and accuracy in soil erodibility assessment. The final output result has revealed the K-factor values varying from 0.037 and more than 0.060 t ha h/MJ mm within the study area.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"15 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135584692","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 : 2023-11-06DOI: 10.24425/gac.2021.136681
Kostiantyn Mamonov, Iurii Sklyar, Maryna Pilicheva, Vladimir Kasyanov, Eduard Shyshkin
: It is proved that the regional land-use territorial development is influenced by many factors, so the study of the assessment of territorial development is an urgent task. As a result of generalization of theoretical and methodological provisions, the definition of regional land-use territorial development is given, which is characterized as a system category that defines permanent transformational changes and considers spatial, urban, environmental and investment factors and improves land-use efficiency. It is established that the existing methodological approaches to the assessment of territorial development of land-use do not have a comprehensive approach and consider only certain factors. For a comprehensive and comprehensive assessment of the level of territorial development of land-use, a model is proposed, which is based on the definition of an integrated indicator. The formation of the model includes the following main stages: geofactor analysis, formation of a multilevel system of indicators, assessment and establishment of the level of impact of the indicator, determination of integrated indicators for each factor, formation of a general integrated indicator of land-use, interpretation of results. The technological feasibility of the model is determined by the formation of a set of spatial, urban, investment and environmental factors, the construction of a multilevel diagnostic system of indicators, their evaluation based on modern methods and the development of mathematical models. To obtain actual spatial and cadastral data to assess the territorial development of land-use, it is advisable to use forms of administrative cadastral reporting and space images.
{"title":"A model for assessing the regional land-use territorial development","authors":"Kostiantyn Mamonov, Iurii Sklyar, Maryna Pilicheva, Vladimir Kasyanov, Eduard Shyshkin","doi":"10.24425/gac.2021.136681","DOIUrl":"https://doi.org/10.24425/gac.2021.136681","url":null,"abstract":": It is proved that the regional land-use territorial development is influenced by many factors, so the study of the assessment of territorial development is an urgent task. As a result of generalization of theoretical and methodological provisions, the definition of regional land-use territorial development is given, which is characterized as a system category that defines permanent transformational changes and considers spatial, urban, environmental and investment factors and improves land-use efficiency. It is established that the existing methodological approaches to the assessment of territorial development of land-use do not have a comprehensive approach and consider only certain factors. For a comprehensive and comprehensive assessment of the level of territorial development of land-use, a model is proposed, which is based on the definition of an integrated indicator. The formation of the model includes the following main stages: geofactor analysis, formation of a multilevel system of indicators, assessment and establishment of the level of impact of the indicator, determination of integrated indicators for each factor, formation of a general integrated indicator of land-use, interpretation of results. The technological feasibility of the model is determined by the formation of a set of spatial, urban, investment and environmental factors, the construction of a multilevel diagnostic system of indicators, their evaluation based on modern methods and the development of mathematical models. To obtain actual spatial and cadastral data to assess the territorial development of land-use, it is advisable to use forms of administrative cadastral reporting and space images.","PeriodicalId":44129,"journal":{"name":"Geodesy and Cartography","volume":"11 20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135584614","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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