GRACE provides a more than 10 year-long data record for scientific analysis. Sentinel Open Access Hub. By observing changes in the Earth’s gravity field, scientists can estimate changes in the amount of water stored in a region, which cause changes in gravity. These discoveries could have far-reaching benefits to society and the ... › View Image. GRACE, GRACE-FO Satellite Data Track Ice Loss at the Poles Greenland's Steenstrup Glacier, with the midmorning sun glinting off the Denmark Strait in the background. Sentinel Hub provides access to a wide range of open source satellite imagery via its … … Top Tier Worldwide Data European Space Agency Registration Required. March 29, 2018 NASA Renews Focus on Earth's Frozen Regions Twin satellites took detailed measurements of Earth's gravity field anomalies from its launch in March 2002 to the end of its science mission in October 2017. The image was taken during a NASA IceBridge airborne survey of the region in 2016. Through a unique and well tested solution formulation, our group proposes to provide sub-monthly measures of the change in continental water storage based on the GRACE intersatellite range-rate measurements. During their mission, the twin GRACE satellites have provided unprecedented insights into how our planet is changing by tracking the continuous movement of liquid … The GRACE mission provides the means to remotely sense gravity changes at regional scales. October 27, 2017. GRACE, twin satellites launched in March 2002, are making detailed measurements of Earth's gravity field which will lead to discoveries about gravity and Earth's natural systems. Sentinel Hub. The drawing is not to scale; the trailing spacecraft would actually be about 220 kilometers behind the lead spacecraft. NASA’s GRACE mission provides the first opportunity to directly measure groundwater changes from space. The Gravity Recovery and Climate Experiment (GRACE) was a joint mission of NASA and the German Aerospace Center (DLR). NASA scientists used GRACE data to identify regional trends of freshwater movement, and combined that information with data from other satellites, climate models and precipitation measurements to determine the causes of major regional trends in freshwater storage. After more than 15 productive years in orbit, the U.S./German GRACE (Gravity Recovery and Climate Experiment) satellite mission has ended science operations. Prolific Earth Gravity Satellites End Science Mission. The GRACE mission detects changes in Earth’s gravity field by monitoring the changes in distance between the two satellites as they orbit Earth.