Central Valley Groundwater and Surface Water Model: A Conjunctive Use Planning Tool

by M. N. Saquib, James M Montgomery Consulting, Engineers Inc, Sacramento, United States,
Y. S. Yoon, James M Montgomery Consulting, Engineers Inc, Sacramento, United States,

Document Type: Proceeding Paper

Part of: Water Resources Planning and Management and Urban Water Resources


A three dimensional finite element groundwater simulation model is integrated with a surface water simulation model to evaluate the conjunctive use feasibility for a specific area. The model simulates the time space variation of groundwater levels and streamflows as well as their interactions. The model was applied to simulate the 59-year (1922-1980) hydrology of the entire Central Valley (approximately 52,000 km2) of California. The model can be used in estimating the safe yield of groundwater and in evaluating the hydrologic impacts of groundwater and surface water use. Detailed hydrologic budgets (monthly/yearly) for any user-specified sub-areas can be generated. The model output also provides linkage to reservoir simulation models that can be interactively used with the hydrologic model to project future flows or to estimate water availability in the Central Valley.

Subject Headings: Flow simulation | Groundwater | Surface water | Decision support systems | Terrain models | Hydrologic models | Water resources | Water supply | California | United States

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