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GRACE Reveals Major Groundwater Loss in California's Heartland

California mountain and aquifer groundwater sources drying up.

The Big Thaw? NASA Satellites Detect Unexpected Ice Loss in East Antarctica

A team of researchers used Grace data to estimate Antarctica's ice mass between 2002 and 2009. Their results, published Nov. 22 in the journal Nature Geoscience, found that the East Antarctic ice sheet is losing mass, mostly in coastal regions, at an estimated rate of 57 gigatonnes a year.

HIGHLIGHTS

There are strong indications that mass loss from the Greenland ice sheet has recently accelerated after atmospheric warming and increased runoff and increased ice discharge through the acceleration of outlet glaciers in the west and east. >> 

was held 5-6 November 2009 in Austin, Texas USA. Information at http://www.csr.utexas.edu/grace/GSTM/agenda.html >> 

Northern India's underground water supply is being pumped and consumed by human activities faster than the aquifers can be replenished. >> 

A discovery about the moon made in the 1960s is helping researchers unlock secrets about Earth's ocean today. >> 

DATA

A coding error in the software that computes Global Isostatic Adjustment (=PGR) was found. Its effect is less than 2 mm/yr everywhere over the globe, less than 0.05 mm/yr in global sea level rise.

Destriped GRACE grids, including a GIA model, degree 1 coefficients, added to the ftp site

DYNAMIC OCEAN TOPOGRAPHY

A time-mean Dynamic Ocean Topographic, and derived geostrophic velocities, computed from the latest Mean Sea Surface and Geoid models, have been added.


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