Science Center Objects

USGS is studying land subsidence in relation to water-project canals in California’s Central Valley.

This type of subsidence has occurred as a result of the extraction of groundwater for agricultural and municipal use. This extraction increased in some areas during California’s recent drought (2012-2016), which was exceptionally severe and prolonged. The USGS studies are helping to inform water-project maintenance activities and preserve the integrity of water-conveyance systems, such as the Delta-Mendota Canal and the California Aqueduct in California.

 

For more information see:

Current Land Subsidence in the San Joaquin Valley

Global Positioning System Surveying and Interferometric Synthetic Aperture Radar to Assess Land Subsidence in the Coachella Valley, California

 

Back to San Francisco Bay-Delta Science