Saltwater intrusion in coastal aquifer ??? comparison between the CIP and MOC simulation technique |
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Authors: | Kei Nakagawa Kazuro Momii Ronny Berndtsson |
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Affiliation: | (1) Faculty of Agriculture, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan;(2) Department of Water Resources Engineering, Lund University, Box 118, SE-221 00 Lund, Sweden |
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Abstract: | Proper management and evaluation of environmental effects for coastal groundwater aquifers require accurate estimation of salt and fresh water movement. For this we compare two numerical methods to study saltwater intrusion. The two numerical methods are the CIP (constrained interpolation profile) and the MOC (method of characteristics). The two numerical methods are used to solve the salt transport equation. The two methods are applied and compared to saltwater intrusion experiments for confined and unconfined aquifer case studies. It is found that for both cases, the CIP-method is superior in terms of calculation time while keeping an acceptable numerical accuracy. |
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Keywords: | saltwater intrusion CIP-method MOC coastal aquifer confined and unconfined aquifer |
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