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Earth Surface Dynamics An interactive open-access journal of the European Geosciences Union

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Earth Surf. Dynam., 5, 211-237, 2017
https://doi.org/10.5194/esurf-5-211-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
13 Apr 2017
Validation of digital elevation models (DEMs) and comparison of geomorphic metrics on the southern Central Andean Plateau
Benjamin Purinton and Bodo Bookhagen
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Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
 
RC1: 'Review: Validation of digital elevation models (DEMs) and comparison of geomorphic metrics on the southern Central Andean Plateau', Stuart Grieve, 07 Feb 2017 Printer-friendly Version 
AC1: 'Response to RC1 by S. Grieve', Benjamin Purinton, 24 Feb 2017 Printer-friendly Version Supplement 
 
RC2: 'Review of "Validation of digital elevation models (DEMs) and comparison of geomorphic metrics on the southern Central Andean Plateau” by Benjamin Purinton and Bodo Bookhagen', Anonymous Referee #2, 10 Feb 2017 Printer-friendly Version 
AC2: 'Response to RC2 by Anon', Benjamin Purinton, 24 Feb 2017 Printer-friendly Version Supplement 
 
EC1: 'AE comment', Simon Mudd, 13 Mar 2017 Printer-friendly Version 
AC3: 'Response to Final Editor Comment', Benjamin Purinton, 19 Mar 2017 Printer-friendly Version 
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
AR by Benjamin Purinton on behalf of the Authors (19 Mar 2017)  Author's response  Manuscript
ED: Publish subject to minor revisions (review by Editor) (23 Mar 2017) by Simon Mudd  
AR by Benjamin Purinton on behalf of the Authors (28 Mar 2017)  Author's response  Manuscript
ED: Publish as is (28 Mar 2017) by Simon Mudd  
ED: Publish as is (28 Mar 2017) by Tom Coulthard (Editor)  
CC BY 4.0
Publications Copernicus
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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...
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