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California needs 11 trillion gallons of water to recover from ongoing drought 12.17.2014
California needs 11 trillion gallons of water to recover from ongoing drought NASA GRACE satellite data reveal the severity of California’s drought on water resources across the state. >> more
GRACE supports research in human health and climate connections 12.17.2014
GRACE supports research in human health and climate connections Increasingly severe heat waves and more frequent and intense flooding due to climate change will spur the spread of cholera in vulnerable regions of the world, new research suggests. >> more
GRCTellus Land grids updated through 10/2014. 12.17.2014
Total Land Water Storage grids are now available through 10/2014. >> more
Complete reprocessing: new JPL-RL05.1 release 12.17.2014
JPL has reprocessed the entire GRACE time series since 04/2002 and released version RL05.1 >> more
NASA's Earth Minute: Scale in the Sky 12.01.2014
NASA's Earth Minute: Scale in the Sky Did you know gravity not only keeps your feet on the ground, but also allows NASA to monitor Earth's water and ice from space? Learn about the twin satellites named GRACE and how they help us predict droughts, floods and groundwater depletion, in the newest NASA's Earth Minute video. >> more
60 Minutes: Segment Extras - NASA turns its eyes on Earth 12.01.2014
60 Minutes: Segment Extras - NASA turns its eyes on Earth NASA scientist Mike Watkins explains how NASA is using GRACE and its other satellites to revolutionize Earth science. >> more
From 310 Miles Above the Earth... 11.11.2014
From 310 Miles Above the Earth... GRACE weighs groundwater lost to irrigation >> more
NEW DATA Versions: Bug in the AOD background models corrected [2014-Oct, 14] 10.14.2014
GFZ recently discovered an error in their background model computation; this bug persisted since late June 2013; all RL05 solutions since 06/2013 have been re-processed - PLEASE DOWNLOAD updated data files >> more
GOCE reveals gravity dip from ice loss 09.26.2014
GOCE reveals gravity dip from ice loss By combining GOCE's high-resolution measurements with information from GRACE, scientists can now look at changes in ice mass in small glacial systems. >> more
GRACE Science Team Meeting, Austin, Texas 09.04.2014
GRACE Science Team Meeting, Austin, Texas http://www.csr.utexas.edu/grace/GSTM/ >> more
Annual water storage changes over the U.S. From GRACE 09.01.2014
Annual water storage changes over the U.S. From GRACE This animation shows the annual water storage changes over the U.S. from GRACE from 2003 - 2013. >> more
Droughts, Floods and the Earth’s Gravity, by the GRACE of NASA 08.19.2014
Droughts, Floods and the Earth’s Gravity, by the GRACE of NASA an article ffrom NASA's Space Place >> more
GRCTellus Land grids updated 08.14.2014
Total Land Water Storage grids are now available through 06/2014. >> more
Groundwater Deficit Out West 07.24.2014
Groundwater Deficit Out West Long-term drought and aggressive seasonal wildfires have consumed property, lives, and farmland in the American West. >> more
NEW: Comparison between JPL, CSR, GFZ solutions 07.22.2014
In GRACE RL05, the monthly gravity solutions from the three processing centers show only small differences. >> more
GRACE data support flood forecasters 07.18.2014
JT Reager Nature Geoscience July 2014 paper >> more
GRCTellus Ocean grids updated 07.14.2014
Ocean Bottom Pressure grids are now available through 04/2014. >> more
GRACE Gravity Observations 07.06.2014
GRACE Gravity Observations River basin flood potential inferred using GRACE gravity observations at several months lead time >> more
Where droughts and floods are bound to happen in the U.S. 03.20.2014
Where droughts and floods are bound to happen in the U.S. This GRACE-based map shows the rate that groundwater supplies – which worldwide are estimated to compose half of our drinking water – have changed from 2003 to 2012. >> more
Satellites Show 'Total' California Water Storage at Near-Decade Low 03.20.2014
Satellites Show 'Total' California Water Storage at Near-Decade Low Advisory from UC Center for Hydrologic Modeling finds statewide averages of snow, surface water and soil moisture near 10-year lows. Threat of multi-year epoch of unsustainable groundwater depletion imminent if drought continues. >> more
Download updated GRCTellus Ocean grids - current version 'RL05.DSTvDPC1401' 03.17.2014
Please download ALL months!. This new version features (1) a small correction related to geocenter, (2) an OBP correction for global mean ocean mass changes. >> more
Happy 12th Anniversary, GRACE! 03.17.2014
Happy 12th Anniversary, GRACE! Follow GRACE through the years with some selected highlights of the mission. GRACE is a joint NASA-German Aerospace Center endeavor. >> more
Download updated GRCTellus Land grids - current version 'RL05.DSTvSCS1401' 03.04.2014
Download updated GRCTellus Land grids - new version 'RL05.DSTvSCS1401' >> more
GRACE-Tellus RL05: 2002 fields now available 02.28.2014
GRACE RL05 data for 2002 has now been processed for land and ocean grids (CSR & JPL) and is available for download. >> more
Climate change shifts Earth's poles. 12.16.2013
Climate change shifts Earth's poles. Univ. Texas researchers observed the phenomena using GRACE data. >> more
Colorado River Basin groundwater loss, 2005-2013 12.16.2013
Colorado River Basin groundwater loss, 2005-2013 UCI researchers use GRACE observations. (Image: J.Ganter, CircleOfBlue) >> more
GRACE identifies glaciers' role in sea level rise 12.16.2013
New study helps resolve connection. >> more
GRACE data over the United States, 2003-2012 11.04.2013
GRACE data over the United States, 2003-2012 This animation illustrates the highs and lows of the Earth's gravity field as water in the basins of the U.S. changes over time. >> more
GRACE Follow-On plans 09.24.2013
GRACE Follow-On plans From our colleagues at The University of Texas >> more
GRACE legacy at the University of Texas 09.13.2013
Mission grows up at the Cockrell School >> more
Water and the Roots of Violent Conflict in Syria 09.09.2013
Water and the Roots of Violent Conflict in Syria A Blog by GRACE Scientist Jay Famiglietti >> more
Australia has big role in sea level decline 09.04.2013
Australia has big role in sea level decline Scientists from NASA's Jet Propulsion Lab and from the University of Colorado have determined that the 2010-2011 average decline in global sea level was predominantly due to heavy rain on several continents. >> more
GRACE, SWOT and Other Sensors 08.02.2013
GRACE, SWOT and Other Sensors A summary of NASA water-related satellite missions from Apogeo Spatial magazine (formerly, Imaging Notes), including GRACE, GRACE-FO, SWOT, TRMM, SMAP, and more. Download the inaugural issue in pdf; http://apogeospatial.com/images/apogeo_sp2013.pdf. >> more
New GRACE animation 08.02.2013
New GRACE animation Global Ice Mass Loss >> more
GRACE part of integrated approach to Amazon wildfire research 06.11.2013
...along with MODIS, AIRS and SST from NOAA >> more
GRACE mission legacy at the University of Texas 06.10.2013
GRACE at the University of Texas Center for Space Research leads to GRACE Follow On at UTCSR. >> more
GRACE on The Weather Channel, June 13, 8:30pm EDT 06.07.2013
GRACE on The Weather Channel, June 13, 8:30pm EDT "Secrets of the Earth: Gravity" - Watch the trailer! >> more
Last Call at the Oasis 04.09.2013
Last Call at the Oasis A movie about global water issues. >> more
Middle East water woes - Al Jazeera video 03.25.2013
Middle East water woes - Al Jazeera video YouTube video of Al Jazeera network story >> more
A less fertile crescent - GRACE eyes Middle East river basins 03.11.2013
A less fertile crescent - GRACE eyes Middle East river basins One of the great river basins of the Middle East, the Tigris-Euphrates—which flows through the so-called fertile crescent that gave birth to agriculture itself—is getting drier. A study in Water Resources Research, indicates that the region is losing water; 0.3 meters per year from 2006-09, at an an alarming rate. >> more
Freshwater losses in the Middle East 02.12.2013
Freshwater losses in the Middle East Groundwater loss due to human activity is measured by GRACE. >> more
2013 GRACE Science Team meeting 01.04.2013
The next GRACE Science Team Meeting will be held on Oct 23-25, 2013, in Austin Texas. >> more
The Gravity of Water 11.20.2012
The Gravity of Water Groundwater conditions in the U.S. are measured by GRACE. Drought lingers. >> more
Testimony of Dr. Jay Famiglietti to Senate Committee 08.06.2012
Drought Forecasting, monitoring and decision-making: A review of the National Integrated Drought Information System >> more
California's water supply: Challenges and opportunities 07.20.2012
California's water supply: Challenges and opportunities Testimony of Dr. Jay Famiglietti before the Subcommittee on Water and Power, U.S. House of Representatives, January 2010. >> more
GRACE release 05 data available 06.13.2012
GRACE release 05 data available >> more
Groundwater depletion threatens food security 05.31.2012
The nation's food supply may be vulnerable to rapid groundwater depletion from irrigated agriculture, according to a new study by researchers at The University of Texas at Austin and elsewhere. >> more
GRACE on Times Square 03.22.2012
GRACE scientist, Jay Famiglietti teams with 'Heads Up! 2012' and National Geographic >> more
GRACE 10th Anniversary 03.16.2012
JPL's Media Release >> more
GRACE - Still amazing... 03.15.2012
On March 17, 2002, NASA and the German Aerospace Center (DLR) launched the Gravity Recovery and Climate Experiment (GRACE), a novel space mission that has given scientists a new understanding of changes in Earth's natural systems. The identical twin GRACE spacecraft track changes in Earth's gravity field caused by local changes in Earth's mass caused by the seasons, weather patterns, short-term climate change and even large earthquakes. Grace has given us monthly measurements of Earth’s mean gravity field that are at least 100 times more precise than predecessors, substantially improving the accuracy of techniques used by oceanographers, hydrologists, glaciologists, geologists and climate scientists. The result has been an amazing array of breakthrough science. Here are some highlights. >> more
New GRACE web page on the NASA Portal 03.15.2012
GRACE has a new web site on the NASA home page. >> more
GRACE Assesses Earth's Melting Land Ice 02.09.2012
A new comprehensive University of Colorado-led study used gravity data from NASA's Grace mission to calculate how much Earth's melting land ice is adding to global sea level. >> more
Greenland Ice Mass Loss Animation 02.09.2012
Dramatic changes in Greenland's ice cover are evident in this animation depicting ice mass loss from 2003 through 2011. >> more
Russian Runoff Freshening Arctic 02.09.2012
Increasing freshwater on the U.S. and Canadian side of the Arctic from 2005 to 2008 is balanced by decreasing freshwater on the Russian side, so that on average the Arctic did not have more freshwater. >> more
DYNAMIC OCEAN TOPOGRAPHY 12.30.2011
DYNAMIC OCEAN TOPOGRAPHY A time-mean Dynamic Ocean Topographic, and derived geostrophic velocities, computed from a mean sea surface and a GRACE-based geoid >> more
A Change of Seasons 12.21.2011
GRACE data included in NASA's Climate Change web site interactive feature. >> more
GRACE Helps Monitor U.S. Drought 12.19.2011
The record-breaking drought in Texas that has fueled wildfires, decimated crops and forced cattle sales has also reduced groundwater levels in much of the state to the lowest levels in more than 60 years, according to new national maps produced by NASA using data from the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (Grace) mission. The map are distributed by the National Drought Mitigation Center at the University of Nebraska-Lincoln.

The latest groundwater map, released on Nov. 29, shows large patches of maroon over eastern Texas, indicating severely depressed groundwater levels. The maps, publicly available on the Drought Center's website at http://go.unl.edu/mqk , are generated weekly by NASA's Goddard Space Flight Center in Greenbelt, Md., using Grace gravity field data calculated at NASA's Jet Propulsion Laboratory, Pasadena, Calif., and the University of Texas Center for Space Research, Austin. >> more
Japan March 2011 Earthquake shifts GRACE orbits 12.19.2011
Researchers at NASA's Goddard Space Flight Center have used this recent megaquake to show that the disturbances of satellite orbits can be used to independently estimate the magnitude and location of earthquakes, along with estimates based on surface seismographs and GPS measurements. >> more
GRACE + Jason + Sea Level 08.29.2011
GRACE + Jason + Sea Level NASA's GRACE and Jason satellites reveal how seasonal variations in Earth's water cycle contributes to rising, and sometimes falling, sea level. >> more
Greenland and Antarctic ice loss dominates changes in Earth oblateness 07.19.2011
GRACE scientists used temporal gravity variations from GRACE to investigate changes in a 34?year time series of Earth’s oblateness observed by satellite laser ranging (SLR). They used 2002–2010 GRACE data to compute the effects of Greenland and Antarctic ice mass variations on oblateness. Their combined effect on the oblateness trend during the GRACE agrees well with the glacial isostatic adjustment (GIA)?corrected SLR oblateness trend over the same time period. The results suggest that at least since 2002, ice loss from Greenland and Antarctica has been the dominant contributor to this current trend, which apparently began sometime in the 1990s. >> more
Groundwater Depletion is Detected From Space 06.22.2011
Groundwater Depletion is Detected From Space GRACE measurements identify 'trouble spots' around the globe. >> more
2012 GRACE Science Team Meeting 05.31.2011
2012 GRACE Science Team Meeting The next meeting will be held in Potsdam, 17-21 September 2012 >> more
9 Years of GRACE 03.28.2011
9 Years of GRACE The GRACE mission launched on March 17, 2002 from Plesetsk in Northern Russia, beginning a mission to make precise measurements of Earth's gravity field. Nine years later GRACE continues to unravel global climatic questions by providing and invaluable data set for a better understanding of ocean surface currents and heat transport, measuring changes in sea-floor pressure, watching the mass of the oceans change, and monitoring changes in the storage of water and snow on the continents. >> more
GRACE measures groundwater depletion in California 03.17.2011
GRACE measures groundwater depletion in California Researchers used data from the GRACE mission to estimate that California's Central Valley lost 20.3 cubic kilometers (16.4 million acre feet) of water between October 2003 and March 2010--a volume equal to 63 percent of the capacity of Lake Mead, the nation's largest reservoir. Most of that depletion occurred between April 2006 and March 2010, a period of drought when farmers pumped more groundwater to compensate for less rainfall and cutbacks in surface water deliveries to irrigators. >> more
Polar Ice Adds More to Rising Seas 03.10.2011
Polar Ice Adds More to Rising Seas 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 and ice caps to become the dominant contributor to global sea level rise, much sooner than model forecasts have predicted. >> more
East African hydrology from GRACE, altimetry, in situ data 01.21.2011
East African hydrology from GRACE, altimetry, in situ data Scientists from the German GFZ and French LEGOS/GOHS and CNES have jointly analyzed gravity data from GRACE, altimetry data and precipitation measurements over the Great Lakes region of East Africa to observe variability in terrestrial water storage, lake water volume and rainfall. Variability at interannual time scales, with a minimum in late 2005, followed by a rise in 2006 to 2007 is evident. >> more
ERROR IN GIA MODEL FIXED 12.20.2010
The coding error previously reported has been fixed, the corrected GIA grids are online, and the GRACE monthly grids using the corrected GIA are also online. >> more
The GRACE Science Team Meeting, Nov 11-12, 2010. 12.10.2010
The GRACE Science Team Meeting, Nov 11-12, 2010. The GRACE Science Team Meeting was held at GFZ in Potsdam, on Nov 11-12, 2010. >> more
GRACE Helps Measure Impacts of Climate Change 12.01.2010
GRACE Helps Measure Impacts of Climate Change Measurements on Earth's ice-covered regions reveal the magnitude of ice mass decline since 2002. >> more
Measuring Water Storage in the Amazon 07.07.2010
Measuring Water Storage in the Amazon New animations from NASA/University of Texas show seasonal changes in the Amazon Basin. The amount of water stored in the Amazon basin varies from month to month, and can be monitored from space by GRACE. >> more
NASA and DLR Sign Agreement to Continue Grace Mission Through 2015 06.10.2010
NASA and DLR Sign Agreement to Continue Grace Mission Through 2015 NASA Deputy Administrator Lori Garver and German Aerospace Center (DLR) Executive Board Chairman Johann-Dietrich W??rner signed the agreement Thursday, 10 June 2010, during a bilateral meeting in Berlin. >> more
Weighing Greenland 05.19.2010
Weighing Greenland GSFC's Scott Luthcke is the featured Climate Scientist in a Union of Concerned Scientists story about how GRACE measures ice mass loss on Greenland. >> more
GRACE Reveals Major Groundwater Loss in California's Heartland 12.14.2009
GRACE Reveals Major Groundwater Loss in California's Heartland California mountain and aquifer groundwater sources drying up. >> more
The Big Thaw? NASA Satellites Detect Unexpected Ice Loss in East Antarctica 11.25.2009
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. >> more
Recent Greenland ice loss responsible for one sixth of sea-level rise 11.25.2009
Recent Greenland ice loss responsible for one sixth of sea-level rise 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. >> more
2009 GRACE Science Team Meeting 10.26.2009
2009 GRACE Science Team Meeting The 2009 GRACE Science Team Meeting was held 5-6 November 2009 in Austin, Texas USA. For information on the meeting, see http://www.csr.utexas.edu/grace/GSTM/agenda.html >> more
GRACE Unlocks Secret to Northern India's Vanishing Water 09.15.2009
GRACE Unlocks Secret to Northern India's Vanishing Water Northern India's underground water supply is being pumped and consumed by human activities faster than the aquifers can be replenished. >> more
Ocean Bottom Pressure Data from GRACE Sheds Light on Ocean, Climate 08.27.2009
Ocean Bottom Pressure Data from GRACE Sheds Light on Ocean, Climate A discovery about the moon made in the 1960s is helping researchers unlock secrets about Earth's ocean today. >> more
A new perspective on sea level rise from potential W. Antarctic ice sheet collapse 05.29.2009
A new perspective on sea level rise from potential W. Antarctic ice sheet collapse Researchers estimate that a rise in sea level from the rapid collapse of the West Antarctic Ice Sheet would be on the order of 3.3 meters, approximately half of previous estimates. The consequences of such an event would be felt more profoundly along the Pacific and Atlantic coasts of the United States. >> more
Grace of Water 05.27.2009
Grace of Water Global monitoring of Earth???s fresh water can best be done from space. The Discovery Channel???s Planet Earth series includes a highlight on the value of GRACE data in the ???Freshwater??? segment. >> more
Antarctic Ice Loss Speeds Up, Nearly Matches Greenland Loss 03.23.2009
Antarctic Ice Loss Speeds Up, Nearly Matches Greenland Loss Study lead, NASA???s Eric Rignot, says the increased contribution of Antarctica to global sea level rise indicated by the study warrants closer monitoring. >> more
GRACE Measures Sea Level Changes from Glaciers 03.03.2009
GRACE Measures Sea Level Changes from Glaciers Ice mass loss in Gulf of Alaska and other arctic glaciers contributes significantly to global sea level rise >> more
Changes in Ocean Mass Linked to El Nino. 03.03.2009
Changes in Ocean Mass Linked to El Nino. The ocean/atmosphere connection goes deeper -- to the bottom of the ocean - in new GRACE study >> more
GREENLAND IS LOSING CONTINENTAL ICE AT A RAPID PACE 11.02.2008
GREENLAND IS LOSING CONTINENTAL ICE AT A RAPID PACE The loss is larger in the SE. Data updated using the latest corrections. >> more
MISSISSIPPI WATER STORAGE FROM GRACE 08.17.2008
MISSISSIPPI WATER STORAGE FROM GRACE Mississippi basin water storage observed with GRACE, assimilated into numerical hydrologic model. This approach brings the GRACE accuracy from scales useful for water cycle and climate studies to scales needed for water resources and agricultural applications >> more
GRACE won 2007 PECORA award 07.01.2008
GRACE won 2007 PECORA award The William T. Pecora Award is jointly awarded by USGS and NASA. >> more
2008 GRACE Science Team Meeting 06.17.2008
2008 GRACE Science Team Meeting The most recent GRACE Science Team meeting was held in conjunction with the Fall AGU meeting in San Francisco, December 2008. >> more
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