Articles | Volume 6, issue 4
https://doi.org/10.5194/esurf-6-971-2018
https://doi.org/10.5194/esurf-6-971-2018
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

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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.