Ground‐Based Radar

Ground‐based radar defined in this entry specifically refers to a ground‐based synthetic aperture radar (GBSAR). It is an effective remote sensing tool to measure topography and deformation of natural and artificial surfaces by using interferometric techniques. GBSAR interferometry has several unique advantages over other terrestrial remote sensing techniques, highlighted by (i) high acquisition frequency of a few minutes, (ii) large monitoring extent up to a few square kilometers, (iii) high measurement accuracy (metric level for DEM generation and submillimeter level for deformation monitoring), and (iv) independent of almost any weather and light conditions. In the last decade, more than ten GBSAR systems have been developed with different radar types and scanning models. These GBSAR systems have been widely used in various environmental and geological applications, mainly including early monitoring warning of slope stability and landslide, monitoring of human‐made structure deformation, mapping of glacier dynamics, and snow depth.

Deformation (meteorology) · Deformation monitoring · Geomorphology · Ground-Penetrating Radar · Interferometric synthetic aperture radar · Interferometry · Landslide · Optics · Radar · Remote sensing · Seismology · Snow · Synthetic aperture radar · Computer Science · Cryospheric studies and observations · Geology · Landslides and related hazards · Synthetic Aperture Radar (SAR) Applications and Techniques