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WRRCTMR No.82 Vertical Movement of Saltwater-Freshwater Interface in a Thick Groundwater System

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Title: WRRCTMR No.82 Vertical Movement of Saltwater-Freshwater Interface in a Thick Groundwater System
Authors: Ogata, Akio
Lau, L. Stephen
Keywords: saline water-freshwater interfaces
groundwater movement
coastal aquifers
hydrological models
mathematical models
show 6 moreaquicludes
aquifers
numerical modeling techniques
coastal-caprock aquicludes
model tests
Ghyben-Herzberg equilibrium theory

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LC Subject Headings: Groundwater -- Mathematical models.
Saltwater encroachment -- Mathematical models.
Issue Date: Mar 1990
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.
Series/Report no.: 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.
Sponsor: Director's Office
Pages/Duration: vii + 9 pages
URI/DOI: http://hdl.handle.net/10125/2687
Appears in Collections:WRRC Technical Memorandum Reports



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