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Amazing GRACE: A Satellite Mission Helps Us Measure and Track Water Underground
Pages 1-4

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From page 1...
... . Indeed, in a 2014 piece in Nature Climate Change, hydrologist Jay Famiglietti, executive director of the Global Institute for Water Security at the University of Saskatchewan, cautioned that "further declines in groundwater availability may well trigger more civil uprising and violent conflict in the already water-stressed regions of the world, and new conflict in others." Fresh water includes the surface water in rivers, lakes, streams, and reservoirs as well as groundwater -- water reserves found underground.
From page 2...
... In the United States, state managers have often relied on limited measurements of how much water they have pumped out of an aquifer to estimate what might remain -- if they measured groundwater at all. In some developing countries, groundwater monitoring has been simply out of reach.
From page 3...
... largest component of Matthew Rodell, chief of the Hydrological Sciences Laboratory at the NASA Goddard Space Flight Center in Greenbelt, Maryland, was a graduate month-to-month student at UT Austin at the time the GRACE mission was in development. He and Famiglietti, who was then Rodell's Ph.D.
From page 4...
... ; GRACE satellites in orbit: NASA/JPL-Caltech; Map of gravitational anomalies: NASA/JPL/University of Texas Center for Space Research; Groundwater depletion in India: NASA's Goddard Space Flight Center Scientific Visualization Studio. © 2020 by the National Academy of Sciences.

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