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Abstract. Since 2017, the TanDEM-X mission aims to acquire data globally to generate another (updated) DEM. This new set of acquisitions, which will be complete in 2020, has a clear temporal separation from those used for the TanDEM-X global DEM. It will therefore allow the creation of a temporally independent DEM, the so-called "TanDEM-X Change DEM" enabling the characterization of terrain changes. Since only one global coverage is being acquired, improvements in e.g. the interferometric datadoi:10.5194/isprs-annals-iv-3-w2-2020-143-2020 fatcat:mhz7njzg5zaero2p25k6njy6qy