Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-3/W2, 253-259, 2015
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-3-W2/253/2015/
doi:10.5194/isprsarchives-XL-3-W2-253-2015
© Author(s) 2015. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
10 Mar 2015
THE 0.4 ARC-SEC TANDEM-X INTERMEDIATE DEM WITH RESPECT TO THE SRTM AND ASTER GLOBAL DEMS
D. I. Vassilaki and A. A. Stamos National Technical University of Athens, 9 Iroon Polytechniou Str, 15780 Zografos, Athens, Greece
Keywords: Global, DEM, Satellite, SAR, TerraSAR-X, TanDEM-X Abstract. Recently a preliminary version of the new global DEM collected by the TanDEM-X mission became available to the scientific community: the TanDEM-X Intermediate DEM (IDEM) version. It is available over selected areas of the globe with a pixel spacing of 0.4, 1 and 3 arc-seconds. This paper presents the TanDEM-X IDEM with respect to global and local elevation data over Aegean Islands with mountainous terrain: the SRTM and ASTER global DEMs, and the national network of triangulation pillars (trig-points) and national archive Digital Terrain Model. Possible systematic 3D translations between global DEMs and local data are also determined and the relative gain in accuracy is assessed. TanDEM-X IDEM is shown to be dramatically enhanced with respect to the other global DEMs although a few jitters exist.
Conference paper (PDF, 3556 KB)


Citation: Vassilaki, D. I. and Stamos, A. A.: THE 0.4 ARC-SEC TANDEM-X INTERMEDIATE DEM WITH RESPECT TO THE SRTM AND ASTER GLOBAL DEMS, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-3/W2, 253-259, doi:10.5194/isprsarchives-XL-3-W2-253-2015, 2015.

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