Radar Images

GRAS is an official distributor of the most common radar data such as the ERS, ENVISAT, Radarsat, TerraSAR, COSMO-SkyMed data. Please contact GRAS for further information on prices and processing levels.

TerraSAR-X provides uniquely flexible radar imaging that has been tailored to suited the requirements of commercial users around the globe. One of the key features is the very high resolution available in SpotLight mode, where a scene of up to 10km x 5km can be mapped at 1 m ground resolution. Advanced products, such as Surface Movement Monitoring and digital elevation mapping are also available.
COSMO-SkyMed is a constellation of four radar satellites that together provide unparralleled radar coverage. The catalog goes back to 2007 and contains a large number of scenes providing the possibility having multiple coverages of varying ground resolutions. The imaging modes ranges from 200 x 200km at 100m resolution to 10 x 10 km at 1m resolution.
RADARSAT was the first operationally oriented radar satellite in the world. Thanks to its single frequency and its different beam modes and positions, RADARSAT is able to meet all the requirements for a continuous and complete Earth monitoring and management. The RADARSAT antenna operates in the microwave frequency known as the C band which is able to penetrate clouds and precipitation.
Envisat ASAR
ENVISAT features enhanced capability in terms of coverage, range of incidence angles, polarisation, and modes of operation relative to the ERS satellites. Improvements in image and wave mode beam elevation steerage allow the selection of different swaths, providing a swath coverage of over 400-km wide using ScanSAR techniques. ENVISAT archive imagery is available in the period from March 2002 to April 2012.
Launched and operated by the European Space Agency, the ERS satellites are the first missions acquiring commercially available microwave radar data, offering new opportunities for all-weather remote sensing applications. The radar images are independent of lighting or weather conditions, while other instruments measure wave height and frequency, wind speed and direction. ERS 1 operated until 2000 and ERS 2 until 2011.