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David Wiese
Solid Earth and Ice Group, NASA Jet Propulsion Laboratory
Friday, Mar. 27 | 10:40 A.M. | AERO 114

Abstract: The Gravity Recovery and Climate Experiment (GRACE), launched in 2002, provided pioneering observations of changes in surface mass on our planet by measuring variations in the gravitational potential of Earth. ÌýThese observations quantified, for the first time, the mass balance of the ice sheets, the mass component of sea level change, glacier mass change worldwide, and identified regions of rapid groundwater depletion, raising concern for future regional water security. Ìý

The GRACE mission was decommissioned in 2017 due to battery failure; however, GRACE Follow-On (GRACE-FO) launched in 2018 and is now successfully continuing observations of Earth system mass change, about to enter its 9th year of operations. ÌýSimultaneously, a future successor mission, GRACE-Continuity, is currently in development with a scheduled launch in December 2028. Ìý

In this talk, I will provide an overview of the scientific highlights from the GRACE and GRACE-FO missions, and look to how we can improve knowledge of surface mass changes in the future, with the launch of GRACE-C, a complementary mission led by ESA, called Next Generation Gravity Mission (NGGM), and the development of potentially the first quantum sensing instrument to be launched in space: the Quantum Gravity Gradiometer Pathfinder mission. Ìý

I will also discuss opportunities for improving knowledge of mass change through data fusion with complementary data types, such as satellite altimetry and in-situ GNSS observations. Ìý

Bio: Dr. David Wiese is a member of the Solid Earth and Ice Group at NASA Jet Propulsion Laboratory. ÌýHe currently serves as the Deputy Project Scientist and Science Data Systems Manager for the NASA/DLR GRACE-Continuity mission. ÌýHis research interests revolve around using astrodynamics and satellite navigation principles to improve understanding of Earth system mass change. ÌýHe is a Clarivate Highly Cited Researcher, having authored over 60 papers garnering more than 14,000 citations. Ìý

He is a past recipient of the JPL Lew Allen Award, the NASA Early Career Achievement Medal, and has received the Outstanding Alumni for Excellence in Technical Achievement and Leadership from the CU Aerospace Engineering Sciences Department. ÌýDr. Wiese earned his PhD in 2011 from the University of Colorado at ¶¶Òõ´«Ã½ÔÚÏß, and a BS from the University of Texas at Austin in 2005.