THC Science

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Summary

Description	English: Variations in total water storage from normal, in millimeters, in the Tigris and Euphrates river basins, as measured by NASA's Gravity Recovery and Climate Experiment (GRACE) satellites, from January 2003 through December 2009. Reds represent drier conditions, while blues represent wetter conditions. The majority of the water lost was due to reductions in groundwater caused by human activities. By periodically measuring gravity regionally, GRACE tells scientists how much water storage changes over time.
Date	1 April 2013, 22:10:01
Source	http://www.nasa.gov/mission_pages/Grace/multimedia/grace20130212i.html
Author	NASA/UC Irvine/NCAR

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:10, 1 April 2013		1,280 × 720 (168 KB)	Stas1995	User created page with UploadWizard

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