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The Analysis of Chloride Ion of Ground Water in the West Coast District of Jeollabuk-Do using Spatial Interpolation  

Lee, Geun-Sang (전주비전대학 지적부동산과)
Im, Dong-Gil (전북도청 기획관리실)
Choi, Yun-Woong (조선이공대학 토목건설과)
Cho, Gi-Sung (전북대학교 토목공학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.19, no.4, 2011 , pp. 23-33 More about this Journal
Abstract
In this study, the data that examined the chloride ion concentration of ground water wells in the west coast of Jeollabukdo applying the GIS spatial estimation method were analyzed. In particular, through the designation of a validation point among ground water wells and then the analysis of error characteristics of the chloride ion concentration by each method of IDW (Inverse Distance Weight), Spline, and Kriging Interpolation method which is proper for estimating salt water intrusion was selected. The main conclusion from this study is as follows. First, as a result of analyzing the error characteristics of various spatial estimation methods by using the data from the chloride ion concentration of 485 ground water wells, the IDW method was found to be the most appropriate for estimating chloride ion concentration by salt water intrusion. Second, analyzing the average chloride ion concentration of the targeted regions has revealed that Gunsan-si with the record of $541mg/{\ell}$ did not meet water quality standards even for industrial use. Both Gimje-si and Gochang-gun satisfied drinking water quality standards and Buan-gun with $272mg/{\ell}$ was slightly below the standards for drinking water. Third, concerning the results of analysis according to administrative districts, as the areas adjacent to the west coast such as Daemyeong-dong, Joong-dong, Jangjae-dong and Guemam-dong in Gunsan-si are found to have very high chloride ion concentration, and both Hoehyeon-myeon and Daeya-myeon bounded by the Mankeong river did not meet water quality standards even for industrial use. From these facts, it is concluded that salt water intrusion has a great effect on Gunsan-si generally.
Keywords
Spatial Interpolation; Chlroride Ion; Ground water; Salt water intrusion;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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