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

Data sets


SRTM-TanDEM-dh Github Repository B. Purinton

Model code and software

Correction and Differencing Scripts (Python) B. Purinton

Video supplement

Iterative-Shifting-Video B. Purinton

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.