Improving a digital elevation model of Antarctica using radar remote sensing data and GIS techniques1

Abstract

The paper discusses various improvements to the authors’ Antarctic Digital Elevation Model (DEM) published in 1999. Those improvements include error corrections based on anomalies discovered through applications of the DEM, incorporation of new topographic data, and the use of grounding lines and a coastline newly extracted from a SAR image mosaic to constrain the surface interpolation. The authors also illustrate how radar remote sensing data and GIS tools can be effectively and efficiently used to refine the DEM.