Research Interests

Processes that deform the solid earth including those associated with the seismic cycle, migration of magma and water in the subsurface, tides, and glacial rebound; Tectonics and the relationship between short and long time scale processes; Glaciology, particularly basal mechanics and ice rheology; Tools and applications using space geodesy, particularly GNSS and SAR; Bayesian methods for large geophysical inverse problems.

News

I currently divide my time between Caltech and JPL where I serve as Chief Scientist. For more information, please see JPL's Office of the Chief Scientist and Chief Technologist.

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