Tri-Decadal Global Landsat Orthorectified ETM+ Systematically Corrected: 1999-2003
'The U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center archive holds data collected by the Landsat suite of satellites, beginning with Landsat 1 in 1972. All Landsat data held in the USGS EROS archive are available for download at no charge. 
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