Affiliate - Stanford Woods Institute for the Environment; Professor of Electrical Engineering and Geophysics
Earth, Energy, and Environmental Sciences
My students and I study the surfaces of Earth and planets using radar remote sensing methods. Our specialization is interferometric radar, or InSAR. InSAR is a technique to measure mm-scale surface deformation at fine resolution over wide areas, and much of our work follows from applying this technique to the study of earthquakes, volcanoes, and human-induced subsidence. We also address global environmental problems by tracking the movement of ice in the polar regions. whose ice mass balance affects sea level rise and global climate. We participate in NASA space missions such as Cassini, in which we now are examining the largest moon of Saturn, Titan, to try and deduce its composition and evolution. Our work includes experimental observation and modeling the measurements to best understand processes affecting the Earth and solar system. We use data acquired by spaceborne satellites and by large, ground-based radar telescopes to support our research.
Selected Publications by this Author
News & Press Releases
"Dig deep" to avoid naturally occurring arsenic contamination has been promoted as an answer to obtaining safe water in South Asia, which has experienced mass water poisoning. But arsenic has been found in numerous deep wells drilled in the Mekong Delta region of southern Vietnam. Scientists, including three Stanford Woods Institute-affiliated researchers suggest that the contamination occurs as arsenic is squeezed from ancient clay sediments surrounding the wells.