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Abstract
Competition for water resources is growing throughout California, particularly in the Central Valley where about 20% of all groundwater used in the United States is consumed for agriculture and urban water supply. Continued agricultural use coupled with urban growth and potential climate change would result in continued depletion of groundwater storage and associated land subsidence throughout the Central Valley. For 1962-2003, an estimated 1,230 hectare meters (hm3) of water was withdrawn from fine-grained beds, resulting in more than three meters (m) of additional land subsidence locally. Linked physically-based, supply-constrained and emanddriven hydrologic models were used to simulate future hydrologic conditions under the A2 climate projection scenario that assumes continued "business as usual" greenhouse gas emissions. Results indicate an increased subsidence in the second half of the twenty-first century. Potential simulated land subsidence extends into urban areas and the eastern side of the valley where future surface-water deliveries may be depleted.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Integrated simulation of consumptive use and land subsidence in the Central Valley, California, for the past and for a future subject to urbanization and climate change |
| ISBN | 1907161120 9781907161124 |
| Volume | 339 |
| Year Published | 2010 |
| Language | English |
| Publisher | International Association of Hydrological Sciences |
| Contributing office(s) | Arizona Water Science Center, California Water Science Center, Western Geographic Science Center |
| Description | 5 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Land subsidence, associated hazards and the role of natural resources development: EISOLS 2010 proceedings |
| First page | 467 |
| Last page | 471 |
| Conference Title | Eighth International Symposium on Land Subsidence (EISOLS) 2010 |
| Conference Location | Querétaro, Mexico |
| Conference Date | October 17-22, 2010 |
| Country | United States |
| State | California |
| Other Geospatial | Central Valley |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |