The data is a high resolution Digital Elevation Model (DEM) for Maasai Mara Catchment in Narok County as well as Talek Basin. The 20 meter DEM is processed through an interferometric process. This is achieved using two Single look complex images from ERS1 and ERS 2 Synthetic Aperture Radar (SAR) satellites. These images have phase information and since they are taken at different time at different incidence angles, the two can mathematically be used to generate phase differences. This is then converted mathematically to height to generate elevations. The images should be opened using ArcGIS.
Images used:
SAR_IMS_1PPDSI20081020_075427_00000018A141_00092_70587_0001
SAR_IMS_1PPDSI20080324_075420_00000017A135_00092_67581_0001
Processing tool used:
Sentinel 1 toolbox – SNAP
Spatial Reference System:
Geographic Co-ordinate System – GCS WGS 84
