Jet Propulsion Laboratory
California Institute of Technology
Gravity Anomaly Map Using GRACE Data
Gravity anomaly map using GRACE data.
The SpaceX Falcon 9 rocket is seen with the NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft onboard at Space Launch Complex 4E at Vandenberg Air Force Base in California.
GRACE-FO in Falcon 9 on Launchpad
The NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft launches onboard a SpaceX Falcon 9, May 22, 2018, from Vandenberg Air Force Base in California.
GRACE-FO Launches, Ocean View
Research based on GRACE observations indicates that between 2002 and 2016, Greenland shed approximately 280 gigatons of ice per year.
Greenland Ice Loss 2002-2016
The GRACE-FO satellites, attached to turntable fixtures, at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California.
GRACE-FO Satellites at Vandenberg
The GRACE Intermediate Field 48 (GIF48 from UT-CSR) field model is an improved mean gravity field that combines GRACE observations and terrestrial gravity information.
Static Gravity Field Anomalies
GRACE-FO mission logo
Changes in Australia's mass observed by GRACE in 2010 and 2011. Areas in greens and blues had the greatest increases in mass, caused by unusually high precipitation connected with a large La Niña e...
Changes in Australia's Mass Observed by GRACE in 2010 and 2011
GRACE-FO, a collaboration between NASA and German Research Centre for Geosciences (GFZ), launched from Vandenberg Air Force Base on on May 22, 2018.
NASA JPL-UC Irvine glaciologist Eric Rignot explains how glaciers in West Antarctica are changing.
West Antarctic Collapse
A simplified example of how the distance between the GRACE-FO satellites changes as they pass from the Caribbean Sea across Colombia and Peru.
How GRACE-FO Measures Gravity
The two GRACE-FO satellites are seen from GFZ’s Satellite Laser Ranging Station in Potsdam, Germany, on May 23, 2018 at 22:16 UTC and 22:17 UTC, respectively.
GRACE-FO Satellites From Potsdam
Illustration of GRACE-FO in orbit (view 2).
GRACE-FO in Orbit (View 2)
Monthly changes in ocean bottom pressure data obtained by the GRACE satellites from November 2002 to January 2012.
Ocean Bottom Pressure 2002-2012
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 3).
GRACE-FO Satellites in Testing
GRACE-FO in a protective shipping container arriving at a new facility at Vandenberg Air Force Base, California.
GRACE-FO Arrives at Vandenberg
Depletion of groundwater in northwestern India between 2002 and 2008, measured by GRACE.
Groundwater Depletion in India, 2002-2008
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 1).
GRACE-FO Satellites During Testing
Gravity variations studied by GRACE can be used to determine ground water storage on land masses.
Global Terrestrial Water Storage Anomaly
GRACE-FO arriving at Vandenberg Air Force Base, California, from Germany.
GRACE-FO Arrives at Vandenberg
The signal of the December 2004 earthquake in the Indian Ocean in GRACE observations of Earth's gravity field.
GRACE Sees Earthquake in Indian Ocean
The GRACE-FO satellites, attached to turntable fixtures, at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California (view 1).
GRACE-FO Satellites, Attached to Turntable Fixtures
Between 2002 and 2016, Antarctica shed approximately 125 gigatons of ice per year, causing global sea level to rise by 0.35 millimeters per year.
Antarctic Ice Loss 2002-2016
Many of today’s most pressing climate science challenges hinge on knowing how and where water is moving on Earth. GRACE-FO will continue the successful partnership between NASA and the German Resea...
GRACE-FO Launch Press Kit
Illustration of GRACE-FO separating from Falcon 9 rocket after launch.
GRACE-FO Separating from Rocket After Launch
GRACE-Follow On (GRACE-FO) is a satellite mission that launched in May 2018. GRACE-FO will continue the work of the GRACE satellite mission tracking Earth's water movement around the globe. These d...
Tracking Water from Space
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US-German Satellites Show California Water Gains After Record Winter
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Warming Makes Droughts, Extreme Wet Events More Frequent, Intense
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NASA Measures Underground Water Flowing From Sierra to Central Valley
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NASA Finds New Way to Monitor Underground Water Loss
Decades of drought across the U.S. Southwest has led some scientists to classify the intense, prolonged dryness as a “megadrought.” But drought in North America took a different shape in 2021, affecting areas that do not face long-term or intense drought as often. The northern Great Plains has been coping with drought for months.
Drought in the Northern Great Plains
Focusing on the GRACE and GRACE-FO missions, the award cites the “outstanding leadership of the international consortium in the planning and implementation of the successful Earth gravity missions.”
International Cooperation Award for NASA JPL's Michael Watkins, Michael Gross