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Rosemary Knight
George L. Harrington Professor of Earth Sciences, Stanford University


17 min

Mapping the groundwater systems of California with airborne geophysics

Geophysical imaging methods have a critical role to play in mapping groundwater systems, providing information that could never be acquired through the drilling of wells.

Over the past four years, Professor Knight and colleagues have explored using an airborne geophysical method to support groundwater management. Geophysical images have revealed the complexity of saltwater intrusion along the California coast, and the spatial variability in sediment texture in two parts of the Central Valley. About to be announced: a $12 million state-wide program to use the airborne geophysical method to map the groundwater basins of California.