The terrestrial gravity information was taken from the DTU10 global gravity field. Shown here are the so-called free air gravity deviations from an ideal ellipsoidal Earth model, in units of milli-gal. Areas colored yellow, orange or red are areas where the actual gravity field is larger than the featureless-Earth model predicts, while the progressively darker shades of blue indicate places where the gravity field is less.
When a mission exceeds expectations, it’s only reasonable to continue pushing the boundaries of spaceborne engineering and science. GRACE Follow-On carries technological upgrades that should give scientists an even clearer picture of climate change.
For the first time, scientists have detected sea level "fingerprints" – patterns of variation in global sea level due to changes in water and ice on land – in GRACE data.
Airbus tests the dispenser structure that will hold the twin GRACE-FO satellites during their launch.
"With GRACE, we effectively created a new field of spaceborne remote sensing: tracking the movement of water via its mass," said Michael Watkins, the original GRACE project scientist and now director of NASA's Jet Propulsion Laboratory, Pasadena, California.
Iridium announces that it has purchased an additional Falcon 9 launch from SpaceX that the satellite services company will share with the GRACE-FO mission.