| Summary: | This dataset consists of true-like sea ice concentration (SIC) data records over the Arctic Ocean, which was derived from the 30 m resolution imagery from the Operational Land Imager (OLI) onboard Landsat-8. Each SIC map are given in a 6.25 km polar stereographic grid, and are catalogued into one of the twelve sub-regions (Baffin Bay and Labarador Seas, Barents Sea, Beaufort Sea, Bering Sea, Canadian Archipelago, Central Arctic, Chukchi Sea, East Greenland Sea, East Siberian Sea, Hudson Bay, Kara Sea, Laptev Sea) of the Arctic Ocean. This dataset also contains the number of Landsat-8 pixels used in the calculation of each SIC values, the land-sea-coastal mask, and the sub-region mask. The naming convention for the files are "sic_landsat08_YYYYMMDD_PPPRRR.nc" following: YYYYMMDD: Date of Landsat-8 scene PPPRRR: Landsat-8 orbit location in reference to the Worldwide Reference System-2 The dataset is in netCDF format and is compliant with the CF 1.8 and ACDD 1.3 convention for netCDF files.The description of the variables along with some key global attributes of the data are provide below. Global Attribute Meaning Attributes title Title of the dataset sub_region Name of the sub-region for each dataset cloud_contamination_category Assessed cloud contamination category of the dataset C1: underestimated cloud cover C2: overestimated cloud cover C3: correctly estimated cloud cover for cloudy sky C4: correctly estimated cloud cover for clear sky source_name Original name of the Landsat-8 level 1 collection 2 dataset Variable Name Meaning Attributes time Reference time of satellite image seconds since 1981-01-01 00:00:00Z lon Longitude _FillValue : -999 lat Latitude _FillValue : -999 X x coordinate of projection Y y coordinate of projection sea_ice_concentration Estimated fractional sea ice area from Landsat-8 measurements _FillValue : -999 sample_size Number of Landsat-8 pixels used to estimate the sea ice concentration _FillValue : -999 land_sea_coastal_mask Land/Sea/Coastal Flag [Sea, Coast, Land] = [0, 1, 2] ...
|
|---|