An analytical solution and case study of groundwater head response to dual tide in an island leaky confined aquifer

Details An analytical solution and case study of groundwater head response to dual tide in an island leaky confined aquifer An analytical solution and case study of groundwater head response to dual tide in an island leaky confined aquifer

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008wrr....4412501s&link_type=abstract

Water Resources Research, Volume 44, Issue 12, CiteID W12501

Physics

Geophysics

3

Hydrology: Groundwater Hydrology, Planetary Sciences: Fluid Planets: Tidal Forces, Oceanography: General: Diurnal, Seasonal, And Annual Cycles (0438), Marine Geology And Geophysics: Littoral Processes

Scientific paper

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).

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