Topic: Tuolumne River Basin
Written by Alan Buis
NASA’s Jet Propulsion Laboratory
Pasadena, CA – New NASA data find the snowpack in the Tuolumne River Basin in California’s Sierra Nevada — a major source of water for millions of Californians — currently contains just 40 percent as much water as it did near this time at its highest level of 2014, one of the two driest years in California’s recorded history.
The data was acquired through a partnership with the California Department of Water Resources, the San Francisco Public Utilities Commission and the Turlock and Modesto irrigation districts.
Spatial distribution of the total volume of water in the snowpack across the Tuolumne River Basin on March 25, 2015 (left) and April 7, 2014 (right) as measured by NASA’s Airborne Snow Observatory. (NASA/JPL-Caltech)
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