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Global daily snow status data is derived from the NOAA-20 VIIRS instrument at a 30 arc-second (1,000 meter) resolution. The product uses a 16-day temporal composite weighted to the ninth day and is formatted on a Climate Modeling Grid (CMG). It classifies each pixel as either 'Snow-free Albedo Retrieved' or 'Snow Albedo Retrieved'.
Data files are large, with each VJ143D product containing only one data layer. License is listed as 'other-license-specified'.