Top-down groundwater hydrograph time-series modeling for climate-pumping decomposition

V Shapoori; TJ Peterson; AW Western; JF Costelloe

Journal article

Top-down groundwater hydrograph time-series modeling for climate-pumping decomposition

V Shapoori, TJ Peterson, AW Western, JF Costelloe

Hydrogeology Journal | Springer Berlin Heidelberg | Published : 2015

DOI: 10.1007/s10040-014-1223-0

Abstract

Groundwater time-series modeling has emerged as an efficient approach for simulating the impacts of multiple drivers of groundwater-head variation such as rainfall, evaporation and groundwater pumping. However, a bottom-up approach has generally been adopted whereby the input drivers have been assumed without statistical evidence for their inclusion. In this study, a parsimonious time-series model was adopted which accounts for various drivers and is able to simulate the overall groundwater-head variation. It can also separate the effects of pumping and climate drivers on multi-annual time series of groundwater-level variation. The time-series model consists of a soil-moisture layer to accou..

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University of Melbourne Researchers

Andrew Western Author

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Grants

Awarded by Department of Primary Industries

Funding Acknowledgements

The authors are grateful for the financial support received from the Australian Research Council (grant number: LP0991280), the Department of Sustainability and Environment, Victoria, Australia; the Department of Primary Industries, Victoria, Australia; and the Bureau of Meteorology, Australia. The authors also thank Mr. Andrew Harrison and Mr. Terry Flynn for providing the pumping data and information on the study area and the anonymous reviewers for their valuable comments