Caption by Mike Carlowicz, including reporting from Holli Riebeek20 September 2012 A deep and persistent drought struck vast portions of the continental United States in 2012. Though there has been some relief in the late summer, a pair of satellites operated by NASA shows that the drought lingers in the underground water supplies that are […]
Aquifers are major groundwater basins with recharge of >2 mm yr−1 in the global inventory of groundwater resources20 (see Supplementary Information). At the bottom of this figure, the areas of the six aquifers (Western Mexico, High Plains, North Arabian, Persian, Upper Ganges and North China plain) are shown at the same scale as the global map; the […]
Outlet glacier categories and rates of velocity change (percentage change from beginning of 5-year period). Black-outlined images show 2000 to 2005 results, and red-outlined images are 2005 to 2010 results. The background velocity map for both periods is a 2007 to 2010 composite, with the five ice-sheet regions indicated: north (N), northwest (NW), southwest (SW), […]
GRAND COULEE DAM, Washington, June 2 (Associated Press) — The giant concrete dams of the Pacific Northwest are overflowing with water. Wyoming has deployed National Guard troops to pile up sandbags. A federal official compares the impending situation to a bucking bull ready to storm out of his chute. States across the West are bracing […]
ScienceDaily (Mar. 8, 2011) — The Greenland and Antarctic ice sheets are losing mass at an accelerating pace, according to a new NASA-funded satellite study. The findings of the study — the longest to date of changes in polar ice sheet mass — suggest these ice sheets are overtaking ice loss from Earth’s mountain glaciers […]
Anomaly map of Greenland melting days for 2010 derived from passive microwave data. Hatched regions indicate where MAR-simulated meltwater production exceeds the mean by at least two standard deviations. Abstract: Analyses of remote sensing data, surface observations and output from a regional atmosphere model point to new records in 2010 for surface melt and albedo, […]
AGU Release No. 10–0723 March 2010For Immediate Release WASHINGTON—Ice loss from the Greenland ice sheet, which has been increasing during the past decade over its southern region, is now moving up its northwest coast, according to a new international study. The research indicates the ice-loss acceleration began moving up the northwest coast of Greenland staring […]
Observed ground water trends in the Sacramento and San Joaquin River basins, Oct. 2003 to March 2009. NASA Data Reveal Major Groundwater Loss in California’s Heartland Technorati Tags: freshwater depletion,drought,agriculture,California,GRACE,North America
In the 66-month period analyzed, the water stored in the combined Sacramento and San Joaquin Basin decreased by more than 31 cubic kilometers, or nearly the volume of Lake Mead. Nearly two-thirds of this came from changes in groundwater storage, primarily from the Central Valley. NASA Data Reveal Major Groundwater Loss in California’s Heartland Technorati […]
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 Technorati Tags: freshwater depletion,drought,agriculture,India,GRACE
