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- W2019014771 abstract "Abstract The Blue Lake aquifer is an unconfined sloping aquifer in Northern California traversed by the Mad River which is regulated by Ruth Reservoir. High pumpage from the existing six wells operated by Humboldt Bay Municipal Water District (HBMWD) of the order of a few million gallons per day (MGD) causes appreciable drawdown compared to the saturated thickness of the aquifer. Additionally, HBMWD also proposed another set of ten wells for meeting an anticipated daily demand of 23 MG of the Humboldt County. Therefore reduction of the governing nonlinear groundwater flow equation into a linear equation was not considered appropriate. An existing explicit scheme coded by previous workers for this project was found most suitable for the solution of inherent nonlinear equations. However, many modifications in the existing algorithm were required before a groundwater balance was obtained for the Blue Lake Aquifer. HBMWD wanted to minimise pumping cost for lifting the proposed 23 MGD from the ten wells. This required the simulation of a groundwater management model of the aquifer involving the principles of nonlinear optimisation. A recent Modified Embedded Approach was used to solve the problem incorporating the appropriate constraints based upon the real system and on the optimisation requirements. It was estimated that HBMWD could have an annual saving of $20,000 by implementing the annual optimal pumping policy (involving monthly planning periods as listed in the Appendix) compared to nonoptimised policy (equal pumping of 2.3 MGD from ten wells)." @default.
- W2019014771 created "2016-06-24" @default.
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- W2019014771 date "1989-01-01" @default.
- W2019014771 modified "2023-09-23" @default.
- W2019014771 title "Optimal pumping policy and groundwater balance for the Blue Lake aquifer, California, involving nonlinear groundwater hydraulics" @default.
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- W2019014771 doi "https://doi.org/10.1016/0022-1694(89)90259-x" @default.
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