Celebrating this anniversary, this video is a “greatest hits” montage of Landsat data. Throughout the decades, Landsat satellites have given us a detailed view of the changes to Earth’s land surface. By collecting data in multiple wavelength regions, including thermal infrared wavelengths, the Landsat fleet has allowed us to study natural disasters, urban change, water quality and water usage, agriculture development, glaciers and ice sheets, and forest health.
NASA and the U.S. Department of the Interior through the U.S. Geological Survey (USGS) jointly manage Landsat, and the USGS preserves a more than 40-year archive of Landsat data that is freely available over the Internet.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11615
Satellites offer a wealth of information pertinent for water and food security. Landsat has long been a foundational piece of the “Space for Ag” initiative.