An overview of the Landsat Program and active missions, Landsat data products and data access, and available tools and services. Since 1972, the joint U.S. Geological Survey (USGS)/National Aeronautics and Space Administration (NASA) Landsat series of Earth Observation satellites have continuously acquired images of the Earth’s land surface. Eight satellites have added more than 11 million Level-1 scenes to the USGS EROS Archive.
Landsat products are used to monitor, assess and project how changes in land use, land cover, and land condition affect people and nature. Current products available include, Level-1 (scaled calibrated radiance), Level-2 (atmospherically corrected global surface reflectance and surface temperature), Level-3 Science Products (Dynamic Surface Water Extent, Factional Snow-Covered Area, Burned Area) and U.S. Analysis Ready Data (ARD).