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California Institute of Technology
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Earth's gravity from space
Earth's gravity from space
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This animation illustrates the movements of the two GRACE-FO satellites as they orbit Earth.
GRACE-FO: from range observations to global mass change
NASA’s Gravity Recovery and Climate Experiment (GRACE, 2002 - 2017) mission, and its successor GRACE Follow-On (launched in 2018), map month-to-month changes in Earth's gravity field resulting from...
GRACE and GRACE-FO track California's land water changes
This visualization of a gravity model was created with data from NASA's Gravity Recovery and Climate Experiment (GRACE) and shows variations in Earth’s gravity field.
GRACE global gravity animation
GRACE mission pre-launch poster
GRACE mission pre-launch poster
Twin GRACE spacecraft being deployed from Breeze
Twin GRACE spacecraft being deployed from Breeze
GRACE on orbit - 1
GRACE on orbit - 1
The GRACE satellites are seen at an IABG testing facility in Germany.
GRACE Satellite Testing
Global ocean conveyor belt of warm and cold water is explained.
Conveyor.mov
The GRACE Intermediate Field 48 (GIF48 from UT-CSR) field model is an improved mean gravity field that combines GRACE observations with terrestrial and ocean gravity information for the small-scale...
Static gravity field - anomalies (1)
The original GRACE satellites in a clean room in Germany.
GRACE Satellites Under Construction
Measuring Earth's Gravity from Space exhibit
Measuring Earth's Gravity from Space exhibit
One of the twin GRACE spacecraft is seen during construction in Germany.
GRACE Satellite Build
This visualization shows extremes of the water cycle — droughts and pluvials — over a twenty-year period (2002-2021) based on observations from the GRACE and GRACE-FO satellites. Dry events are sho...
Water Cycle Extremes: Droughts and Pluvials
The twin GRACE satellites are seen in a clean room in Germany in 2002.
GRACE Satellites in Clean Room
One of the GRACE satellites undergoes thermal testing at IABG in Germany.
Thermal Testing for GRACE Satellite
One of the twin GRACE satellites, Flight Model 1, is seen on a trolley during construction in Germany.
GRACE Satellite Under Construction
The GRACE satellites during component integration in a German clean room.
GRACE Component Integration
GRACE on orbit
GRACE on orbit
GRACE being readied for launch - 1
GRACE being readied for launch - 1
GRACE satellites are mounted belly to belly at an IABG testing facility in Germany.
GRACE Satellites at IABG
The force of gravity not only keeps us from floating away, it also lets NASA study Earth’s water and ice from space. Using a pair of twin satellites named "GRACE," we can monitor our planet’s water.
Scale in the Sky
These images show the changes in gravity anomalies from GRACE over the Amazon Basin for each month of 2004.
Amazon Basin seasonal hydrology
GRACE being readied for launch - 2
GRACE being readied for launch - 2
This image shows the mean annual amplitude of total water storage on Earth in 2007 as measured by GRACE.
Total water storage from GRACE, 2007
Research based on GRACE observations indicates that between 2002 and 2021, Greenland shed approximately 280 gigatons of ice per year.
Greenland Ice Loss 2002-2021
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