The rate at which groundwater reservoirs are being depleted is increasing

In what parts of the world and to what degree have groundwater reservoirs been depleted over the past 50 years? The Frankfurt hydrologist Prof. Petra Döll has been researching this using the global water model WaterGAP. She has arrived at the most reliable estimate to date by taking into consideration processes which are important in dry regions of the world. The values calculated were compared with monitoring data from many different wells and data from the GRACE satellites. These satellites measure changes in the Earth's gravity field. Döll has come to the conclusion that the rate at
which groundwater reservoirs are being depleted is increasing, but that the rate is not as high as previously estimated.

Read the whole article on Physorg

More from Physorg