Coastal Water Quality Modeling in Tidal Lake: Revisited with Groundwater Intrusion SCIE SCOPUS

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Title
Coastal Water Quality Modeling in Tidal Lake: Revisited with Groundwater Intrusion
Author(s)
Kim, Chang S.; Kim, Jinah; Lim, Haksoo; Jeong, Younghoon; Park, Kwang Soon
KIOST Author(s)
Kim, Jin Ah(김진아)Lim, Hak Soo(임학수)
Publication Year
2016-03
Abstract
A new method for predicting the temporal and spatial variation of water quality, with accounting for a groundwater effect, has been proposed and applied to a water body partially connected to macro-tidal coastal waters in Korea. The method consists of direct measurement of environmental parameters, and it indirectly incorporates a nutrients budget analysis to estimate the submarine groundwater fluxes. Three-dimensional numerical modeling of water quality has been used with the directly collected data and the indirectly estimated groundwater fluxes. The applied area is Saemangeum tidal lake that is enclosed by 33km-long sea dyke with tidal openings at two water gates. Many investigations of groundwater impact reveal that 10 similar to 50% of nutrient loading in coastal waters comes from submarine groundwater, particularly in the macro-tidal flat, as in the west coast of Korea. Long-term monitoring of coastal water quality signals the possibility of groundwater influence on salinity reversal and on the excess mass outbalancing the normal budget in Saemangeum tidal lake. In the present study, we analyze the observed data to examine the influence of submarine groundwater, and then a box model is demonstrated for quantifying the influx and efflux. A three-dimensional numerical model has been applied to reproduce the process of groundwater dispersal and its effect on the water quality of Saemangeum tidal lake. The results show that groundwater influx during the summer monsoon then contributes significantly, 20% more than during dry season, to water quality in the tidal lake.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2228
DOI
10.2112/SI75-269.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.1342 - 1346, 2016
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Subject
BAY
Keywords
Water quality; groundwater; Saemangeum tidal lake; numerical water quality model
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Related Researcher
Research Interests

Coastal Disaster Prevention,Coastal Erosion Research,Coastal Ocean Modeling,연안재해방재,연안침식연구,연안해양모델링

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