{"ob_id":7800,"uuid":"b0decc428d6329dfc618cbe2cb569559","title":"ESA Synthetic Aperture Radar (SAR) and Advanced-SAR (ASAR) radar backscatter measurements","abstract":"The European Space Agency's (ESA) Synthetic Aperture Radar (SAR) instruments have been flown on board ERS-1, ERS-2 and the Advanced SAR (ASAR) on board Envisat satellite. The ERS-1, ERS-2 and Envisat satellites, launched in 1991, 1995 and 2002 respectively, are ESA multi-payload, Earth observation satellites. \r\n\r\nThis dataset collection contains Synthetic Aperture Radar (SAR) data from the European Remote Sensing (ERS) satellites ERS-1 and ERS-2, and Advanced SAR data from Envisat.  The ERS-1 mission began in 1991 and ended in 2000, and ERS-2 and Envisat are still ongoing.  SAR provides high resolution images, ocean wave spectra data and wind direction vector data.  They are available through the NEODC to UK based students only.","keywords":"ESA, SAR, ASAR, satellite","discoveryKeywords":[1138],"publicationState":"published","dataPublishedTime":"2007-12-10T02:41:38","doiPublishedTime":null,"member":["https://catalogue.ceda.ac.uk/api/v2/observations/7801/?format=json","https://catalogue.ceda.ac.uk/api/v2/observations/7810/?format=json","https://catalogue.ceda.ac.uk/api/v2/observations/7817/?format=json"],"identifier_set":["https://catalogue.ceda.ac.uk/api/v2/identifiers/5060/?format=json","https://catalogue.ceda.ac.uk/api/v2/identifiers/5061/?format=json"],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/32279/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/32281/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/32282/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/32283/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/32285/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/43349/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/43350/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/32280/?format=json"]}