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Carlos López-Vázquez and Francisco Javier Ariza-López
From an extensive search of papers related to the comparison of Global Digital Elevation Models (hereinafter GDEMs), an analysis is carried out that aims to answer several questions such as: Which GDEMs have been compared? Where have the comparisons been...
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Vassilios N. Grigoriadis, Vassilios D. Andritsanos and Dimitrios A. Natsiopoulos
Recent Digital Surface, Elevation, and Bathymetric Models (DSM/DEM/DBM) aim to provide high-resolution and accurate height and depth information needed for a variety of surveying, geodetic, geophysical, and other applications. In this study, first we aim...
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Shangmin Zhao, Jiao Liu, Weiming Cheng and Chenghu Zhou
Multi-source data fusion can help to weaken the original data?s shortcomings while improving data accuracy. The experimental area in this research is Taiyuan City in Shanxi Province, China. Using SRTM1 DEM, ASTER GDEM V3, and AW3D30 DEM, the optimal reso...
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Mohammed El Bastawesy, Omnia El Saadawy, Abotalib Z. Abotalib, Abdullah Othman, Maysa Taha and Ahmed Gaber
Digital elevation models (DEMs) are the cornerstone for hydrological and geomorphological modeling. Herein, two Nile-tributary catchments (Wadi Al Rishrash and Wadi Atfeh) in Egypt are selected to examine the contribution of different DEMs to the accurac...
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Antonios Mouratidis and Dimitrios Ampatzidis
Digital elevation models (DEMs) are a widely used form of topographic information, with some of the most popular being the Shuttle Radar Topography Mission (SRTM) DEM and the Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital E...
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Laura Keys and Jussi Baade
Nine digital elevation model (DEM) datasets were used for separate delineations of the Nam Co, Tibet catchment and its subcatchments, and these delineated areas were compared using the highest resolution dataset, TanDEM-X 12 m, as a baseline. The mean de...
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Sansar Raj Meena and Thimmaiah Gudiyangada Nachappa
Landslides are one of the most damaging geological hazards in mountainous regions such as the Himalayas. The Himalayan region is, tectonically, the most active region in the world that is highly vulnerable to landslides and associated hazards. Landslide ...
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Zbigniew Walczak, Mariusz Sojka, Rafal Wrózynski, Ireneusz Laks
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This study compares four digital elevation models (DEMs), based on various data sources, to define polder retention capacities. Two commercial and two publically available, free of charge data sources were used. Commercial sources are DEMs based on aeria...
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Yashon O. Ouma
This study presents the estimation of reservoir storage capacity using multiresolution Real-Time Kinematic Global Positioning System (RTK-GPS) DEM, in comparison with ASTER and contour-derived DEM. Through RMSE comparisons of the elevation point uncertai...
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Ping Lu and Yu Shang
The Puqu Fault is situated in Southern Tibet. It is influenced by the eastward extrusion of Northern Tibet and carries the clockwise rotation followed by the southward extrusion. Thus, the Puqu Fault is bounded by the principal dynamic zones and the tect...
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