• Proceedings of the Korea Society of Environmental Biology Conference
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• 2005.12a
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• pp.137-137
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• 2005

• Journal of Wetlands Research
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• v.9 no.2
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• pp.71-84
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• 2007

Masan Bay is a representative semi-closed bay acted as a sedimentation reservoir with a slow current velocity and a poor water circulation in Korea. The pollutants from terrestrial sources into the Masan Bay have apparently environmental pollution problems, such as eutrophication, red tied, and hypoxia. In this study, An ecological modeling work was performed to estimate the material circulation including the growth of bivalve in ecosystem. Furthermore, the effect of water purification was calculated by filter feeding bivalve to particulate organic matter just like COD and phytoplankton. And Water quality management strategy by bio-purification of bivalve is derived through selection of location, quantification of bivalve aquaculture farm. The results showed that the optimum location for bivalve farming is where phytoplankton accumulation by physical processes is maximized and the optimum density and area of bivalve are 35 individuals $m^{-3}$ and ca. 500 hectare, respectively. When assuming conditions for the optimum growth of bivalve, COD could decrease by up to 18% even without other reduction of pollution loads.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 1995.10a
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• pp.141-145
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• 1995

하구언과 방조제의 축조와 시기를 같이 하여 목포내항 부근의 만조시 수위가 크게 상승하여 목포시 저지대 곳곳에 침수문제를 야기시키고 있으며, 저조위는 하구언 건설 이전보다 낮아져 연안해운이 발달된 목포항에서 선박의 항해에 지장을 받는 등 이중의 고통을 받고 있는 실정이다. 이와 더불어 목포구의 조류속이 건설전에 비해 급격히 감소됨에 따라 외해수와 내해수의 해수교환이 여의치 않게 되었으며, 최근 크게 문제시되고 있는 영산호의 수질과 목포시의 폐수발생량을 감안하면 장차 목포항 인근의 해수오염이 크게 우려되는 실정이다. (중략)

• KCID journal
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• v.12 no.1
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• pp.28-37
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• 2005

Although experimental analysis for groundwater sample at wells located systematically are very effective to delineate seawater intrusion region at coastal area, this method is restricted in few wells and time. We have conducted electrical resistivity soun

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2003.08a
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• pp.124-129
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• 2003

방파제는 항만계획에 있어서 항만을 구성하는 요소 중 가장 대표적인 요소이다. 방파제의 근본적인 목적은 외해로부터 내습하는 파랑의 에너지를 차단하여 정온한 수역을 확보함으로써 어민의 안전과 생찰터전을 보호하는 데 그 목적이 있다. 하지만, 이렇게 조성된 항내 정온수역은 항 입구를 제외한 항내ㆍ외를 완전히 차단시킴으로써 항내ㆍ외의 해수순환 기능이 크게 저하되어 항내 수질오염의 주원인이 되고 있는 실정이다. (중략)

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2003.08a
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• pp.118-123
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• 2003

재래식 방파제는 투수성이 작아 항내ㆍ외간 해수유통을 저하시켜 조석간만의 차가 작은 해역의 항만에서는 오염원이 유입될 때 수질이 쉽게 악화된다. 특히 방파제 후면 수역을 매립하여 선착장으로 이용하는 경우에 이 현상은 심화된다 이를 해결하려면 육상으로부터의 오염원 유입을 저감시킴과 함께 정체된 항에 흐름이 존재하도록 하는 건설 공법을 도입할 필요가 있다. (중략)

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2003.08a
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• pp.303-306
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• 2003

해수교환방파제 설치로 항내의 수질개선 효과를 기대하려면 방파제를 통해 항내로 순유입량이 발생되어야 한다. 순유입량이 발생되기 위해서는 방파제 전면의 최대수위 또는 평균수위가 증대되거나 방파제의 도수로 내에서 항외측으로 발생하는 흐름을 감소시켜야 한다. (중략)

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2002.03b
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• pp.61-68
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• 2002

GIS와 하천수질 모델링과의 연계에 관한 연구는 점점 많아지고 계속되고 있는 실정이다. 그러나 해양모델링과 GIS와 연계한 연구는 많지 않다. 이번 연구에서는 해양모델을 GIS와 연계하는 측면을 고려해 보았다. 해양모델 중에 해수유동에 관한 모델 POM(princeton Ocean Model)을 선정하여 해양모델의 구동을 위해 자료를 만드는 것과 결과물을 도시하는 데 있어서 GIS를 사용한다. 그래서 기존의 해양모델을 사용하는 측면에서의 편이성을 도모하고, 또한 해양모델의 구동을 위해 자료 만드는 측면에서 정확성을 높이게 한다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.12 no.1
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• pp.19-26
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• 1983

The purpose of the present study is to obtain some fundamental data for hygienic control of sanitary indicative bacteria of sea water in fish preservatory tanks at popular swimming beaches in Busan including Songdo, Kwanganri, Haeundae and Songjeong from July to August in 1982. The geometric mean values of coliform group and fecal coliform MPN (most probable number) of sea water of Kwanganri were 27,300/100ml and 8,700/100ml respectively, which showed the highest population of the study regions. MPN's of the sea water of beaches and fish preservatory tanks showed 21,000/100ml and 8,800/100ml respectively at Kwanganri, which were also the highest numbers. The degree of the hygienic bacteriological populations of both the seawater and that of the fish tanks at a same region showed similar trend. The pollution caused by coliform group generally increased as viable cell counts increased. The types of coliform organisms isolated from seawater in fish presorvatory tanks by IMViC reaction were 42% Escherichia coli group, 2% Citrobacter freundii group, 44% Klebsiella aerogenes group and 12% others.

• Journal of Korean Society for Geospatial Information Science
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• v.19 no.4
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• pp.23-33
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• 2011

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.