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NASA Physical Oceanography Distributed Active Archive Center (PO.DAAC)

NASA Earthdata archive operated at JPL that openly distributes OPERA land-surface products, including DSWx-HLS, through Earthdata catalogue, cloud, and file services.

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NASA OPERA Dynamic Surface Water Extent from HLS (DSWx-HLS)

Open Level-3 scene product generated from Harmonized Landsat-8 and Sentinel-2 surface reflectance. Each MGRS/UTM tile is distributed as ten 30 m Cloud Optimized GeoTIFF layers, including interpreted water and binary-water classifications plus exact sensing, processing, product-version, and software-version metadata. This is observed surface-water classification, not a flood anomaly or water-depth product: class 1 is open water and class 2 is partial surface water (at least 20% and less than 100% open water).

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