Landsat was used to identify areas of forest conservation in the Democratic Republic of the Congo. thumbnail: http://svs.gsfc.nasa.gov/vis/a010000/a011000/a011004/G2012-057_DRC_Landsat_final_youtube_hq_gal.png

Above the Earth, Below the Surface: Landsat’s Role in Monitoring Water Quality
Safeguarding freshwater resources is crucial, and while scientists use a variety of ground-based techniques to gauge water quality, the Landsat program has provided water quality data from orbit for decades.