The USGS ECCOE Test Sites Catalog contains a collection of prime radiometric, geometric, and spatial sites that are used to characterize and calibrate space-based optical #ImagingSensors, including #Landsat. Learn more here: https://t.co/skRanWc7ss
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#CalVal #DataQuality https://t.co/PNvViUDYGe

USGS Landsat

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