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NASA/NOAA's Suomi NPP VIIRS Land Surface Temperature and Emissivity (LST&E) Version 2 swath product (VNP21) provides daily, 6-minute snapshots of land surface temperature and emissivity at a 750-meter spatial resolution. The dataset is generated using a physics-based algorithm that simultaneously retrieves LST and emissivity for three thermal infrared bands, employing the ASTER Temperature Emissivity Separation technique with an improved Water Vapor Scaling atmospheric correction. It is designed for continuity with MODIS Terra and Aqua products and includes layers for quality control, emissivity, errors, view angle, precipitable water vapor, and geolocation.
License is listed as 'other-license-specified'; users should verify terms. Known issue: unfiltered data may contain more extreme high-temperature outliers than previous MODIS LST products.