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Pacific Coastal & Marine Science Center

Submarine Groundwater Discharge

About Our Research

Idealized hydrogeologic cross section showing submarine groundwater discharge.

Submarine groundwater discharge (SGD) is an ubiquitous coastal process that is driven by a composite of climatologic, hydrogeologic, and oceanographic processes. For example, terrestrial hydraulic gradients that reflect both short and long term climatic conditions almost always transport both surface and ground water toward the coast. In coastal waters, physical oceanographic processes such as wave set-up, tidal pumping, and density-driven circulation impact these hydraulic gradients and thus affect rates of submarine groundwater discharge.

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URL: http://walrus.wr.usgs.gov/sgd/
Science questions to: Peter Swarzenski
Site maintained by: Laura Zink Torresan
Page Last Modified: 29 October 2014 (lzt)