Estimating Regional Groundwater Recharge Using a Hydrological Budget Method

Fakhri Manghi (), Behrooz Mortazavi (), Christie Crother () and Moshrik Hamdi ()

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2009, vol. 23, issue 12, 2475-2489

Abstract: Estimating groundwater recharge is a key component in determining the sustainable yield of groundwater resources in arid and semi-arid areas such as southern California. Estimating groundwater recharge on a regional scale requires developing a water budget that incorporates data on boundary conditions, aquifer properties, groundwater levels, and groundwater production. The hydrological budget method proposed herein is simple, cost-effective, and easy to apply. It utilizes matched pairs of groundwater level measurements, groundwater extraction data, and distributed specific yield information for estimating groundwater recharge. In this method, ARCGIS 9.0 Geostatistical and Spatial Analyst applications are used for interpolating/extrapolating and creating grids for specific yield, bedrock elevation, and raw groundwater data. The annual average groundwater recharge for the Hemet subbasin in western Riverside County, California, from 1997 to 2005 is estimated at 12.5 MCM, with wet and dry periods ranging between 14.9 MCM and 11.7 MCM, respectively. The proposed method utilizes information commonly available to most groundwater management entities, such as groundwater production data, groundwater level measurements, and lithologic information. Copyright Springer Science+Business Media B.V. 2009

Keywords: Groundwater recharge; Water budget; GIS; Hemet subbasin (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (8)

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DOI: 10.1007/s11269-008-9391-0

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