ESRIN


GIS Data

Detecting Surface Change and Avalanche Mapping

Detecting Surface Change and Avalanche Mapping

Interferometric Synthetic Aperture Radar (also known as InSAR) uses remote sensing techniques to compare  two or more synthetic aperture radar (SAR) images in order to detect changes in the earth’s surface over time as small as a few millimeters.  The combined image analysis is represented by a color ramping indicating the differences […]