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Tidal fluctuations in a leaky confined aquifer: Dynamic effects of an overlying phreatic aquifer
Author(s) -
Li L.,
Barry D. A.,
Jeng D.S.
Publication year - 2001
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/2000wr900402
Subject(s) - aquifer , phreatic , geology , artesian aquifer , cone of depression , aquifer test , groundwater , slug test , geomorphology , geotechnical engineering , petrology , groundwater recharge
Tidal fluctuations in a leaky confined coastal aquifer are damped significantly due to leakage into an overlying phreatic aquifer. Jiao and Tang [1999] presented an analytical solution to a simple model describing this phenomenon. Their solution assumes that the tidal fluctuations in the overlying phreatic aquifer are negligible (i.e., a static phreatic aquifer). Here we examine dynamic effects of the overlying aquifer based on a new approximate analytical solution. The numerical results indicate that the dynamic effects can be significant for a relatively large leakage and a high transmissivity of the phreatic aquifer.