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Data Description

Synthetic Aperture Radar (restricted data) (SAR)
The CLASS inventory of Synthetic Aperture Radar data includes imagery of global and repetitive observations of the environment. Imagery is obtained by the ERS-1, ERS-2 and RADARSAT-1 satellites, which are flown in sun-synchronous, polar orbits. Imaging is acquired irrespective of weather conditions. The SAR radar sensor is a microwave instrument that sends pulsed signals to the Earth and processes the received reflected pulses. Data are processed at one of four sites: Fairbanks, USA; Gatineau, Canada; Tromso, Norway; or West Freugh, UK. Data are in a variety of Beam Mode/Positions and product types (geo-coded or geo-referenced) on various dates.