The study, to be published Friday in Water Resources Research, a journal of the American Geophysical Union, examined data over seven years from 2003 from a pair of gravity-measuring satellites which is part of NASA’s Gravity Recovery and Climate Experiment or GRACE. Researchers found freshwater reserves in parts of Turkey, Syria, Iraq and Iran along the Tigris and Euphrates river basins had lost 117 million acre feet (144 cubic kilometers) of its total stored freshwater, the second fastest loss of groundwater storage loss after India.
About 60 percent of the loss resulted from pumping underground reservoirs for ground water, including 1,000 wells in Iraq, and another fifth was due to impacts of the drought including declining snow packs and soil drying up. Loss of surface water from lakes and reservoirs accounted for about another fifth of the decline, the study found. Continue reading