{ "extent": { "spatial": {"bbox": [[ -80, 60, -10, 90 ]]}, "temporal": {"interval": [[ "1992-01-27T00:00:00.000Z", "2010-06-13T23:59:59.999Z" ]]} }, "stac_version": "1.0.0", "keywords": [ "DIF10", "Greenland", "Ice sheet", "CCI", "ESA", "orthoimagery", "EARTH SCIENCE>CRYOSPHERE>GLACIERS/ICE SHEETS>ICE SHEETS", "ENVISAT", "ERS-1", "ERS-2", "AMI", "ASAR", "ice sheets", "Envisat", "AMI-SAR", "AMI/SAR" ], "description": "This dataset contains time series of ice velocities for the Jakobshavn Glacier in Greenland, which have been derived from intensity-tracking of ERS-1, ERS-2 and Envisat data acquired between between 1992 and 2010. It provides components of the ice velocity and the magnitude of the ice velocity and has been produced as part of the ESA Greenland Ice Sheet Climate Change Initiative (CCI) project.The dataset contains two time series: 'Greenland_Jakobshavn_TimeSeries_2002_2010' contains an older version of the time series kept for completeness and also to ensure the best temporal coverage. It is based on data from the ASAR instrument on ENVISAT, acquired between 10/11/2002 and 23/09/2010 and contains 47 maps of ice velocity. The second time series 'greenland_jakobshavn_timeseries_1992_2010' contains the latest version of the time serives based on ERS-1, ERS-2 and Envisat data acquired between 27/01/1992 and 13/06/2010 and contains 120 maps.The data is provided on a polar stereographic grid (EPSG3413: Latitude of true scale 70N, Reference Longitude 45E) with 500m grid spacing. 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