L7 Irish Cloud Validation Masks

The scenes in this dataset were originally selected by Richard Irish, NASA-GSFC, and were derived manually from Landsat Enhanced Thematic Mapper Plus (ETM+) Level 1G scenes by Pat Scaramuzza and Michelle Bouchard at the USGS EROS Center. Its purpose is train and validate cloud masking algorithms. Each product is provided as a thematic raster, and includes the classes of “cloud”, “thin cloud”, “clear”, and “fill”. While these validation images were subjectively digitized by a single analyst, they provide useful information for quantifying the accuracy of clouds flagged by various cloud masking algorithms. Each mask is provided in GeoTIFF format, and includes all bands from the original Landsat Level-1 data (GeoTIFF), and its associated Level-1 metadata (MTL.txt file).