ACCURACY ASSESSMENT OF DIFFERENT DIGITAL ELEVATION MODELS AVAILABLE FOR FILDES PENINSULA

Nowadays there are many Digital Elevation Models (DEM) available. Some of them are commercial while others can be accessed free of charge. Therefore the purpose of this study is to compare some of them, which cover a very particular region namely Fildes Peninsula in the south-western end of King George Island - Antarctica. In comparison to field measurements, carried out earlier, our results reveal that a World DEM has significantly much higher horizontal and vertical accuracy than for example the RAMP DEM. Nevertheless, the vertical and horizontal precision of the freely available ASTER GDEM V2 is only two times lower compared to the precision of World DEM DEM. SCAR ADD does almost show the same vertical accuracy as the World DEM.