The Landsat Data Continuity Mission is the 8th satellite in the 40-year successful Landsat program. thumbnail: http://svs.gsfc.nasa.gov/vis/a010000/a011100/a011166/Screen_Shot_2013-01-10_at_10.14.41_AM_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.