Assessing the accuracy of global digital elevation models for the territory of the Russian Federation

Geodesy
UDC: 
528.06:528.2/.3
DOI: 
10.22389/0016-7126-2025-1024-10-2-11
1 Karpik A.P.
2 Ganagina I.G.
3 Opritova O.A.
Year: 
2025
№: 
10
1024
Pages: 
2-11

Siberian State University of Geosystems and Technologies

1, 
2, 
3, 
Abstract:
A comparative assessment of the publicly available digital elevation models accuracy (DEMs) is provided: ALOS Global Digital Surface Model (AW3D30), ASTER Global Digital Elevation Model (GDEM) Version 3 (ASTGTM), Digital Elevation - Shuttle Radar Topography Mission (SRTM) 1 Arc-Second Global, Earth Topography 2022 (ETOPO 2022) Global DEM dataset on 19 test areas of the Russian Federation, located from 44 to 800 in latitude and from 35 to 1800 in longitude. The elevation difference in the test areas ranged from 90,7 to 1745,5 meters. The height values of objects in digital topographic maps at a scale of 1 : 100,000 are used as a standard. The authors describe a proposed method for assessing the accuracy of global DEMs using the GIS "Panorama", which allows comparing the height values of the DEM with the reference values and obtaining a matrix of differences. The results of the height determination accuracy assessing using DEM at characteristic points with reference values are presented. It was established that the smallest value of the root mean square error in determining the height in the territory of the Russian Federation is provided by the DEM ALOS (AW3D30)
The study was carried out within the framework of the "GEOTECH-KVANT-2" research project to improve the accuracy of coordinate-time definitions in the territory of the Russian Federation
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Citation:
Karpik A.P., 
Ganagina I.G., 
Opritova O.A., 
(2025) Assessing the accuracy of global digital elevation models for the territory of the Russian Federation. Geodesy and cartography = Geodeziya i Kartografiya, 86(10), pp. 2-11. (In Russian). DOI: 10.22389/0016-7126-2025-1024-10-2-11
Publication History
Received: 19.11.2024
Accepted: 23.09.2025
Published: 20.11.2025

Content

2025 October DOI:
10.22389/0016-7126-2025-1024-10