Simulating the effects of artificial recharge in Lemmon Valley, Washoe County, Nevada

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Authors

Van Hoozer, Randall G

Issue Date

1994

Type

Thesis

Language

en_US

Keywords

Quasi Three-dimensional Finite Difference Numerical Groundwater Flow Model , Artificial Recharge , Topographically-closed Basin , Two-layer Groundwater System , Upper Unconfined Layer , Lower Confined Layer , Precipitation , Subsurface Inflow , Subsurface Outflow , Evapotranspiration , Water Budget , Water Budget Components , Groundwater Pumpage , Secondary Recharge , Recharge Components , Discharge Components , Model Calibration , Quasi Steady-state Calibration Process , Model Calibration , Transient Simulations , Aquifer Storage , Water Levels , Mackay Theses and Dissertations Grant Collection

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Abstract

A quasi three-dimensional finite difference numerical groundwater flow model was developed to simulate the effects of artificial recharge in a topographically-closed basin in western Nevada. The basin was conceptualized as a two-layer groundwater system, an upper unconfined layer and a lower confined layer. Components of the modeled water budget include precipitation, subsurface inflow and outflow, and evapotranspiration. Other water budget components, groundwater pumpage and secondary recharge, were incorporated into the model implicitly. Stable water levels on an annual basis, along with recharge and discharge components of the water budget being nearly equal, indicate that the groundwater system was at quasi steady-state during the early 1970s. Accordingly, model calibration was completed using a quasi steady-state calibration process. Results of model calibration were the initial conditions for transient simulations of artificial recharge. All simulations indicate that artificial recharge adds water to aquifer storage and increases water levels.

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Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.

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University of Nevada, Reno

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In Copyright(All Rights Reserved)

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