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Tracking Earth's water in motion

GRACE Follow-on (GRACE-FO) is continuing GRACE's legacy of tracking Earth's water movement to monitor changes in underground water storage, the amount of water stored in large lakes and rivers, soil moisture, ice sheets and glaciers, and sea level caused by the addition of water to the ocean. These discoveries provide a unique view of Earth's climate and have far-reaching benefits to society and the world's population.

people spotlight
Charley Dunn
Instrument Advisory Group

Charley is Deputy Section Manager of JPL's Tracking and Application Section. In addition to the GRACE-family missions, he has focused on using GPS to perform and enable precise measurements of the Earth.

"I found I really like to build things as part of a team. We get a group of people and we put something together and we figure out how it should work and then we try to solve all the problems. And then actually turn it on and have it work -- that's really what I like to do."


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