NW India Groundwater Depletion, 2002-2008. The water table in NW India is declining at an average rate of 17.7 km3 per year. NASA

GRACE measures groundwater level variations, including groundwater depletion in northwest India. Since 2002, groundwater has been lost from that region at a rate of 17.7 km3 per year, largely due to pumping for irrigation.

GRACE Can Monitor Human-induced Groundwater Depletion