EGU22-3672, updated on 09 Jan 2024
EGU General Assembly 2022
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

GRACE-FO Science Results and Mission Status

Frank Flechtner1, Felix Landerer2, Himanshu Save3, Christopher Mccullough2, Christoph Dahle1, Srinivas Bettadpur3, Michael Watkins2, Krzysztof Snopek1, and Robert Gaston2
Frank Flechtner et al.
  • 1Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Geodesy and Remote Sensing, Wessling, Germany (
  • 2Jet Propulsion Laboratory, California Institute of Technology
  • 3Center for Space Research- University of Texas, Center for Space Research- University of Texas, Austin, USA

The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission has collected nearly 4 years of monthly gravity and mass change observations since its launch in May 2018. On March 17 we have celebrated the 20th anniversary of the GRACE launch. The combined GRACE/GRACE-FO mass change data record is therefore now spanning exactly two decades, and is an essential tool to quantify and track Earth’s water movement and surface mass changes across the planet. Monitoring changes in ice sheets and glaciers, near-surface and underground water storage, the amount of water in large lakes and rivers, as well as changes in sea level and ocean currents provides an integrated global view of how Earth’s water cycle and energy balance are evolving.

In this presentation we will update the community on the current GRACE-FO mission status and near-term plans, including instrument and flight system performance (i.e., satellite health status and outlook, performance of precise inter-satellite ranging from the K/Ka band and Laser Ranging Interferometers, and accelerometry as processed at Jet Propulsion Laboratory (JPL), the official Level-1 data analysis center). We will discuss the GRACE-FO science data quality, reprocessing plans, and highlight recent science results, discoveries, and applications. Finally, we will conclude with a short outlook towards achieving continuity with future mass change missions.

How to cite: Flechtner, F., Landerer, F., Save, H., Mccullough, C., Dahle, C., Bettadpur, S., Watkins, M., Snopek, K., and Gaston, R.: GRACE-FO Science Results and Mission Status, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-3672,, 2022.


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