Collection-1 Landsat Level-3 Fractional Snow Covered Area (FSCA) Science Product

The U.S. Geological Survey (USGS) has developed and implemented an algorithm that identifies the spatial and temporal distribution of snow covered area in U.S. Landsat Analysis Ready Data (ARD) tiles to produce Landsat fractional Snow Covered Area (fSCA) Science Products. The fSCA packages include per-pixel percentages of snow cover (SNOW) as well as a revised cloud mask (REVCM) which flags various surficial and atmospheric conditions. Fractional Snow Covered Area products were generated for individual U.S. Landsat ARD tiles acquired over the western conterminous U.S. (CONUS) for 1984 - 2017.