Assessing the Accuracy of SRTM Dem and Aster Gdem Datasets for the Coastal Zone of Shandong Province, Eastern China
This study assessed the performance of recently released 3 arc second SRTM DEM version 4.1 by CSI-CGIAR chervo jacke herren and 1 arc second ASTER GDEM version 1 and version 2 by METI-NASA in comparison with ground control points from 1:50000 digital line graphs for the coastal zone of Shandong Province, Easter China.The vertical accuracy of SRTM D