France: With frequent observations from the year-old Sentinel-1A radar satellite scientists are improving the remote sensing technique to map ground deformation, for monitoring of earthquakes and volcanoes. By comparing data from past satellite radar missions – ERS and Envisat – with those obtained from the current Sentinel-1A, researchers of Italy’s Institute for Electromagnetic Sensing of the Environment (IREA-CNR) have shown the drastic improvement in mapping surface deformation.
