20260407 14210200 1.0 TRUE Watermap Extent products generated by ASF from Sentinel-1 SAR imagery using the HydroSAR Hydro30 workflow. Pixel values of 1 indicate surface water, 0 is used for non-water pixels. These products have been validated in the Hindu Kush Himalayan region, but not elsewhere. Use caution when viewing these products in unvalidated areas. Refer to https://ntrs.nasa.gov/citations/20210020271 for more information. Watermap Extent products generated by ASF from Sentinel-1 SAR imagery using the HydroSAR Hydro30 workflow. Watermap Extent products processed by ASF DAAC HyP3 using GAMMA software. Contains modified Copernicus Sentinel data, processed by ESA. ASF S1 WM