SWOT measures more than 95% of Earth's lakes larger than 15 acres and rivers wider than 330 feet, the first global survey of fresh water.
Image: NASA/JPL-Caltech.
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NASA and the French space agency CNES (a U.S.-European mission).
Source: NASA JPL, SWOT freshwater survey
A radar interferometer satellite that measures the height of water on land and at sea.
Source: NASA JPL, SWOT freshwater survey
Operating now; it covers the whole planet every 21 days.
Orbiting 554 miles (891 km) up, scanning between 78° North and 78° South.
Fresh water is unevenly measured on the ground; SWOT gives every country the same view of its rivers and lakes.
Source: NASA JPL, SWOT freshwater survey
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SWOT (Surface Water and Ocean Topography) is the first global survey of Earth's fresh water. It measures more than 95% of lakes larger than 15 acres and rivers wider than 330 feet, tracking how much water flows through rivers and is stored in lakes and reservoirs.
Source: NASA JPL, SWOT freshwater survey
Source: NASA Earthdata, SWOT data release
Value to Earth: water managers can see droughts and floods building. Value to the atmosphere and climate: SWOT sees ocean eddies smaller than 60 miles across, which move heat and carbon between the ocean and the air. Value to space: it shows what a radar satellite in The curved path an object takes as it travels around a planet, moon or star, like a satellite circling Earth. Glossary can measure that no ground network can reach.
Source: NASA JPL, SWOT freshwater survey
For Further Information: NASA JPL, SWOT freshwater survey
NASA–CNES SWOT keeps watch on the water levels of more than a million lakes larger than 15 acres.
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APA
Saving Planets. (n.d.). SWOT (NASA–CNES). https://www.savingplanets.com/SWOT.html
MLA
"SWOT (NASA–CNES)." Saving Planets, https://www.savingplanets.com/SWOT.html.