Results 21 to 30 of about 124,228 (379)
Several global digital elevation models (DEMs) have been developed in the last two decades. The most recent addition to the family of global DEMs is the TanDEM-X DEM.
Jana Marešová+7 more
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The paper discusses the impact that the quality of the digital elevation model (DEM) has on the final result of landslide susceptibility modeling (LSM).
Mirosław Kamiński
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Shaping the Global High-Resolution TanDEM-X Digital Elevation Model
The global digital elevation model (DEM) produced by the TanDEM-X (TerraSAR-X add-on for digital elevation measurements) mission is an interferometric elevation model with unprecedented quality, accuracy, and coverage.
Martin Huber+6 more
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SENSITIVITY ANALYSIS OF UAV-PHOTOGRAMMETRY FOR CREATING DIGITAL ELEVATION MODELS (DEM) [PDF]
Abstract. This study evaluates the potential that lies in the photogrammetric processing of aerial images captured by unmanned aerial vehicles. UAV-Systems have gained increasing attraction during the last years. Miniaturization of electronic components often results in a reduction of quality.
Johannes B. Ries+2 more
openaire +4 more sources
TerraSAR-X add-on for Digital Elevation Measurements (TanDEM-X) mission is designed to generate 3-D images of the Earth as the first bistatic synthetic aperture radar (SAR).
Peng Li+5 more
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Digital elevation models of TanDEM-X mission [PDF]
Started in 2010 TanDEM-X mission (TerraSAR-X add-on for Digital Elevation Measurement) is the first spaceborne radar interferometer mission that acquires interferometric data in bistatic InSAR stripmap mode with two spacecrafts TerraSAR-X (TSTSX) and ...
Małgorzata Woroszkiewicz
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Comparis of digital elevation model (DEM) and aerial photographs for drainage [PDF]
Currently, elevation data are available from several major sources and at different spatial resolutions. This paper shows the quality and accuracy of drainage network analysis resulted from ASTER DEMs and aerial photographs. Hydrology toolsets in the when we used the vector datasets for analyzing in separate land features.
Marzieh Mokarram, Majid Hojati
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Efficiency of Using GNSS-PPP for Digital Elevation Model (DEM) Production [PDF]
Abstract In the developing countries, cost-effective observation techniques are very important for earthwork estimation, map production, geographic information systems, and hydrographic surveying. One of the most cost-effective techniques is Precise Point Positioning (PPP); it is a Global Navigation Satellite Systems (GNSS) positioning ...
Abdelhamid Abomariam+3 more
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Control quality of open source Digital Elevation Models (DEMs) in Tunisia [PDF]
Digital Elevation Models (DEMs) are an invaluable source of information in large area studies. Some of the DEMs such as Advanced Spaceborne Thermal Emission Radiometer-Global Digital Elevation Model (ASTER GDEM), shuttle radar topography mission (SRTM), and Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) are freely available for the ...
Hammadi Achour, Noamen Rebai
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InSAR Elevation Inversion Method Based on Backprojection Model with External DEM
When Interferometric Synthetic Aperture Radar (InSAR) is used to obtain the Digital Elevation Model (DEM), highly sloped terrains will make interferometric fringes dense and increase the difficulty of phase unwrapping, which will affect the accuracy of ...
Xiaoning HU+3 more
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