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WATER RESOURCES RESEARCH,
VOL. 44,
W12501,
7 PP., 2008
doi:10.1029/2008WR006893
An analytical solution and case study of groundwater head response to dual tide in an island leaky confined aquifer
School of Environmental Studies and MOE Biogeology and Environmental Geology Laboratory, China University of Geosciences, Wuhan, China
School of Environmental Studies and MOE Biogeology and Environmental Geology Laboratory, China University of Geosciences, Wuhan, China
Department of Mathematics, Anshan Normal University, Anshan, China
Department of Civil and Environmental Engineering, Temple University, Philadelphia, Pennsylvania, USA
Department of Mathematics, Anshan Normal University, Anshan, China
Department of Mathematics, Liaoning Normal University, Dalian, China
School of Environmental Studies and MOE Biogeology and Environmental Geology Laboratory, China University of Geosciences, Wuhan, China
This paper presents an analytical solution of groundwater head response to dual-tide fluctuation in the transect of an island leaky aquifer system comprising a confined aquifer and its overlying semipermeable confining layer. Both layers terminate at the coastlines on two sides of the island. Solution analysis indicates that the tidal waves from the two sides of the island transect interfere at the middle of the island and the interference decreases to zero as the horizontal length of the aquifer increases to infinity. The leakage of the overlying confining layer enhances the landward attenuation of the tidal head fluctuation and shortens the time lag between the head and tide fluctuations. The solution agreed well with the observations in eight piezometers in Garden Island on the continental shelf of Western Australia reported by Trefry and Bekele (2004).
Received 1 February 2008; accepted 4 September 2008; published 9 December 2008.
Citation: (2008), An analytical solution and case study of groundwater head response to dual tide in an island leaky confined aquifer, Water Resour. Res., 44, W12501, doi:10.1029/2008WR006893.
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