QA
Quality Assessment (QA) bands provide, for Landsat Collection 2, useful information to users regarding conditions of each pixel observation. A more detailed description of this band can be found on https://www.usgs.gov/landsat-missions/landsat-collection-2-quality-assessment-bands.
Science Products which are used by BDC, use the following Cloud Mask:
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Figure 1 - Source (page 13)