Abstract
Global digital elevation model play an important role in solving large-scale scientific and engineering problems. However, the global digital elevation model generally has low accuracy and contains systematic errors. In order to meet the demand of using the global elevation digital model in specialized tasks, this journal presents a method to assess the global elevation digital model SRTM1 based on the DEM digital elevation model scale 1/25.000 developed by the Defence mapping agency of VietNam. Results of the accuracy assessment show that the mean square error of deviation between these two digital elevation models is at 3,225m and completely meets the requirements for use in Geodetic and Mapping work.
PDF (Tiếng Việt)
| Download: 358
Downloads
Download data is not yet available.