The Copernicus Sentinel-3 SLSTR RBT products provide global brightness temperatures and radiances with a spatial resolution of 500 meters for reflectance bands and 1 kilometer for thermal infrared bands, useful for environmental monitoring and climate studies.
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Sentinel-3 SLSTR Radiance and Brightness Temperature (NRT)
ESA/ESRIN
EARTH SCIENCE>OCEANS>OCEAN OPTICS>RADIANCE