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Title: WRRCTMR No.82 Vertical Movement of Saltwater-Freshwater Interface in a Thick Groundwater System 
Author: Ogata, Akio; Lau, L. Stephen
Date: 1990-03
Publisher: Water Resources Research Center, University of Hawaii at Manoa
Citation: Ogata A, Lau LS. 1990. Vertical movement of saltwater-freshwater interface in a thick groundwater system. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC technical memorandum report, 82.
Abstract: A theoretical function is derived to predict the transient position of the saltwater-freshwater interface set in vertical motion from an initially static equilibrium state. The function is found to be proportional to
the square root of time after commencement. The proportionality is governed by the porosity and permeability of the aquifer, the difference in density of the two liquids, and the amount of head change.
Laboratory sand-column experiments conducted generally validated the model. Precise experiments are desirable to elucidate a theoretical constant.
Series/Report No.: WRRC Technical Memorandum Report
Sponsorship: Director's Office
Pages/Duration: vii + 9 pages
Keywords: saline water-freshwater interfaces, groundwater movement, coastal aquifers, hydrological models, mathematical models, aquicludes, aquifers, numerical modeling techniques, coastal-caprock aquicludes, model tests, Ghyben-Herzberg equilibrium theory
LC Subject Headings: Groundwater -- Mathematical models.
Saltwater encroachment -- Mathematical models.

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