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Since 1972, the joint U.S. Geological Survey / NASA Landsat series of Earth Observation satellites have continuously acquired images of the Earth’s land surface, providing uninterrupted data to help land managers and policymakers make informed decisions about natural resources and the environment.
Landsat is a part of the USGS National Land Imaging (NLI) Program.
Landsat Level-2 and Level-3 Science Products, along with U.S. Analysis Ready Data (ARD), contain higher-level data to allow scientists to better document changes to Earth's terrestrial environment.
Landsat Collections are tiered management structures that ensure all Landsat Level-1 products are produced to create a consistent archive of known data quality
