A digital elevation model (DEM) is a three dimensional representation of the Earth’s surface. The image parallax associated with images taken from two different angles is used as a basis to generate this DEM. In this study a Radarsat stereo pair have been used within a photogrammetric workstation to build a DEM of the region.

The density was set at 30 m. The output DEM format is a regular raster grid, a two dimensional array of elevation data points rectified to a standard Universal Transverse Mercator Sector 32. Click here for a simple 3D model of the region.