Articles | Volume 5, issue 2
https://doi.org/10.5194/esurf-5-211-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esurf-5-211-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Validation of digital elevation models (DEMs) and comparison of geomorphic metrics on the southern Central Andean Plateau
Benjamin Purinton
CORRESPONDING AUTHOR
Institute of Earth and Environmental Science, Universität Potsdam, Potsdam, Germany
Bodo Bookhagen
Institute of Earth and Environmental Science, Universität Potsdam, Potsdam, Germany
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Latest update: 23 Nov 2024
Short summary
We evaluate the 12 m TanDEM-X DEM for geomorphometry and compare elevation accuracy (using over 300 000 dGPS measurements) and geomorphic metrics (e.g., slope and curvature) to other modern satellite-derived DEMs. The optically generated 5 m ALOS World 3D is less useful due to high-frequency noise. Despite improvements in radar-derived satellite DEMs, which are useful for elevation differencing and catchment analysis, lidar data are still necessary for fine-scale analysis of hillslope processes.
We evaluate the 12 m TanDEM-X DEM for geomorphometry and compare elevation accuracy (using over...