Articles | Volume 6, issue 4
Research article
30 Oct 2018
Research article |  | 30 Oct 2018

Measuring decadal vertical land-level changes from SRTM-C (2000) and TanDEM-X ( ∼ 2015) in the south-central Andes

Benjamin Purinton and Bodo Bookhagen


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Benjamin Purinton on behalf of the Authors (17 Sep 2018)  Author's response   Manuscript 
ED: Publish as is (17 Oct 2018) by Simon Mudd
ED: Publish as is (22 Oct 2018) by Tom Coulthard (Editor)
AR by Benjamin Purinton on behalf of the Authors (22 Oct 2018)
Short summary
We show a new use for the SRTM-C digital elevation model from February 2000 and the newer TanDEM-X dataset from ~ 2015. We difference the datasets over hillslopes and gravel-bed channels to extract vertical land-level changes. These signals are associated with incision, aggradation, and landsliding. This requires careful correction of the SRTM-C biases using the TanDEM-X and propagation of significant uncertainties. The method can be applied to moderate relief areas with SRTM-C coverage.