Southern California Groundwater

  • Released Thursday, October 17, 2013

This animation depicts variations in surface elevation resulting from the discharge and recharge of groundwater basins in Southern California. These seasonal fluctuations, which range between -5 and +5 centimeters (-2 to +2 inches), result from the pumping of groundwater during the dry season (Summer/Fall) and recharge of the basins during the wet season (Winter/Spring). Reductions in elevation, resulting from extraction of groundwater, are shown in orange, while increases in elevation, resulting from the recharge of the basins, are shown in blue.

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Please give credit for this item to:
ESA/NASA/JPL-Caltech, SAR data and analysis courtesy of Paul Lundgren of the Jet Propulsion Laboratory.

Release date

This page was originally published on Thursday, October 17, 2013.
This page was last updated on Tuesday, November 14, 2023 at 12:23 AM EST.

Papers used in this visualization

Lanari, R., P. Lundgren, M. Manzo, and F. Casu (2004), Satellite radar interferometry time series analysis of surface deformation for Los Angeles, California, Geophys. Res. Lett., 31, L23613, doi:10.1029/2004GL021294.

Datasets used in this visualization

Note: While we identify the data sets used in these visualizations, we do not store any further details, nor the data sets themselves on our site.