WRRCTR No.139 Numerical Simulation of a Thick Freshwater Lens: Pearl Harbor Groundwater Model

dc.contributor.author Liu, Clark C.K.
dc.contributor.author Lau, L. Stephen
dc.contributor.author Mink, John F.
dc.date.accessioned 2008-08-20T22:32:19Z
dc.date.available 2008-08-20T22:32:19Z
dc.date.issued 1981-12
dc.description.abstract The freshwater aquifer in the Pearl Harbor area on O'ahu, Hawai'i is the most important water resource of the island and constitutes a large proportion of its freshwater supply. The aquifer has a freshwater lens up to 304.8 m (1000 ft) thick, floating on top of a saline water zone. Mechanisms of groundwater movement are extremely complex because the upper boundary is confined near the coast and phreatic inland, while the lower boundary is nowhere confined. In this study, regional groundwater movement due to various pumping schemes is mathematically simulated by a set of partial differential equations. These equations are then solved numerically with a finite difference approximation. The location of the freshwater and saltwater interface, which constitutes the lower boundary of the system model, was estimated by Hubbert's formula. Consideration was also given to features concerning geohydrologic boundaries of the Pearl Harbor aquifer. It was concluded that a mathematical model can be used as a tool in the management of groundwater development in a thick Ghyben-Herzberg aquifer. Improvement of system simulation may be achieved by adding a mass transport element to study hydrodynamic dispersion within a transition zone where fluid density changes gradually.
dc.description.sponsorship Office of Water Research and Technology, U.S. Department of the Interior Grant/Contract No. 14-34-0001-1113 (A-090-HI)
dc.format.extent viii + 71 pages
dc.identifier.citation Liu CCK, Lau LS, Mink JF. 1981. Numerical simulation of a thick freshwater lens: Pearl Harbor groundwater model. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC technical report, 139.
dc.identifier.uri http://hdl.handle.net/10125/2309
dc.language.iso en-US
dc.publisher Water Resources Research Center, University of Hawaii at Manoa
dc.relation.ispartofseries WRRC Technical Report
dc.relation.ispartofseries 139
dc.subject aquifer characteristics
dc.subject computer models
dc.subject groundwater movement
dc.subject hydrologic models
dc.subject hydrogeology
dc.subject mathematical models
dc.subject numerical analysis
dc.subject Darcy's law
dc.subject Hawaii
dc.subject Ghyben-Herzberg lens
dc.subject Pearl Harbor aquifer
dc.subject.lcsh Groundwater -- Hawaii -- Oahu.
dc.subject.lcsh Groundwater flow -- Hawaii -- Oahu.
dc.subject.lcsh Pearl Harbor (Hawaii)
dc.subject.lcsh Groundwater flow -- Mathematical models.
dc.subject.lcsh Groundwater -- Mathematical models.
dc.title WRRCTR No.139 Numerical Simulation of a Thick Freshwater Lens: Pearl Harbor Groundwater Model
dc.type Report
dc.type.dcmi Text
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
wrrctr139.pdf
Size:
2.86 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: