Hindcast of water availability in regional aquifer systems using MODFLOW Farm Process
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Abstract
Coupled groundwater and surface-water components of the hydrologic cycle can be simulated by the Farm Process for MODFLOW (MF-FMP) in both irrigated and non-irrigated areas and aquifer-storage and recovery systems. MF-FMP is being applied to three productive agricultural regions of different scale in the State of California, USA, to assess the availability of water and the impacts of alternative management decisions. Hindcast simulations are conducted for similar periods from the 1960s to near recent times. Historical groundwater pumpage is mostly unknown in one region (Central Valley) and is estimated by MF-FMP. In another region (Pajaro Valley), recorded pumpage is used to calibrate model-estimated pumpage. Multiple types of observations are used to estimate uncertain parameters, such as hydraulic, land-use, and farm properties. MF-FMP simulates how climate variability and water-import availability affect water demand and supply. MF-FMP can be used to predict water availability based on anticipated changes in anthropogenic or natural water demands.
Keywords groundwater; surface-water; irrigation; water availability; response to climate variability/change
Suggested Citation
Schmid, W., Hanson, R.T., Faunt, C., Phillips, S.P., 2015, Hindcast of water availability in regional aquifer systems using MODFLOW Farm Process, in Predictions for hydrology, ecology, and water resources management: Using data and models to benefit society, Prague, Czech Republic, September 15–18, 2008, p. 311-314.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Hindcast of water availability in regional aquifer systems using MODFLOW Farm Process |
| Year Published | 2015 |
| Language | English |
| Publisher | Czech Association of Hydrogeologists |
| Contributing office(s) | California Water Science Center |
| Description | 4 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Predictions for hydrology, ecology, and water resources management: Using data and models to benefit society |
| First page | 311 |
| Last page | 314 |
| Conference Title | HydroPredict 2008 |
| Conference Location | Prague, Czech Republic |
| Conference Date | September 15–18, 2008 |