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EVALUATION OF ASTER GDEM VER2 USING GPS MEASUREMENTS AND SRTM VER4.1 IN CHINA
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The freely available ASTER GDEM ver2 was released by NASA and METI on October 17, 2011. As one of the most complete high resolution digital topographic data sets of the world to date, the ASTER GDEM covers land surfaces between 83°N and 83°S at a spatial resolution of 1 arc-second and will be a useful product for many applications, such as relief analysis, hydrological studies and radar interferometry. The stated improvements in the second version of ASTER GDEM benefit from finer horizontaldoi:10.5194/isprsannals-i-4-181-2012 fatcat:54bkx7pr3fbsxkyenqi7b2lrq4