• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.10a
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• pp.222-223
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• 2002

돗대기새우류(Leptochela sp.)는 전 세계적으로 2아속 12종이 분포하고 있으며 이중7종이 인도태평양 해역에 분포하고 있다. 우리나라 연안해역에서는 돗대기새우 (L.gracilis)와 둥근돗대기새우(L. sydniensis) 2종이 보고되고 있으며 특히 봄과 가을에 대량 출현한다. 돗대기 새우는 젓새우류와 혼획되어 어획되며 서남 해역에 어가의 주소득원이 되고 있다. 지금까지 보고된 연구는 형태학적 분류 (Chace, 1976), 성장 (Park and Lee, 1995)과 2차 성징의 특성 (Park, 1984)에 관한 연구 등이 있다. (중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.11a
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• pp.197-202
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• 2004

In this paper, we tackled the marine leisure business of the archipelago at the southwest sea area which has the natural advantage for marine leisure. We also discuss how to adapt the yacht business on the above area. At first, we will introduce the predominant case on the marine leisure business of the overseas. Next we will analyze the current situation of the domestic marine leisure and draw up a plan to solve its problem. Finally we apply an environment friendly marina establishment to the archipelago at the southwest sea area and evaluate its validity.

• Proceedings of the Korea Water Resources Association Conference
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• 2004.05b
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• pp.1018-1022
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• 2004

지구온난화에 의해 전세계적으로 평균해수면이 상승하고 있는데, 이는 지반의 융기 또는 침강 등을 비롯한 여러가지 지역적 차이 때문에 지역적으로 적지 않은 차이를 보이고 있다. 분석결과에 따르면 서남해안은 $1\~3mm/yr$ 정도의 비슷한 값을 보이고 있으며 제주도의 경우 $3\~5mm/yr$로 서남해안 지역에 비하여 약간 큰 값을 보이는 등 전지구적 상승량인 $1\~2mm/yr$ 보다는 다소 크게 나타나고 있다. 이와 함께 방조제와 같은 해안구조물 건설에 의해서도 평균해수면 뿐 아니라 고조위 및 저조위의 변화가 유발된다. 서남해안에서는 군산항과 목포항에서 특히 방조제 건설후에 각각 조위상승과 조석확폭현상이 발생하여 만조위 상승이 유발된 것으로 나타나고 있는데, 여기에 기인하여 목포 인근해역에서는 침식현상이 초래되고 있을 뿐 아니라 연중 해수면 변화가 심해짐에 따라 고극조위가 더욱 커져 저지대 범람이 특히 우려되고 있는 실정이다.

• Journal of the Korean Society for Marine Environment & Energy
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• v.10 no.3
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• pp.155-166
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• 2007

We carried out a study on the marine environment, such as water temperature, salinity, density and chlorophyll ${\alpha}$, and the distribution of phytoplankton community, such as species composition, dominant species and standing crops in the Southwestern Sea of Korea during early summer 2005. According to the analysis of a T-S diagram, three characteristics of water masses were identified. We classified them into Korean and Chinese coastal water, the cold water and the oceanic water. The first was characterized by high temperature and low salinity in the surface layer influenced by river run offs from China and Korea, the second by low temperature and salinity in bottom layer originated from the bottom cold water of the Yellow Sea, and the third by high temperature and high salinity influenced by Tsushima warm currents. The internal discontinuous layer among them was formed at the intermediate depth (about $10{\sim}20\;m$ layer). And the thermal front appeared in the central parts between Tsushima warm currents and Korean and Chinese coastal waters in the Southwestern Sea of Korea. Chlorophyll ${\alpha}$ concentration was high values in the Korean coastal waters and sub-surface layers. But It was low concentration in the Tsushima warm currents regions. The $Chl-{\alpha}$ maximum layers appeared in the sub-surface layer below thermocline. The phytoplankton community in the surface and stratified layers was composed of a total of 40 species belonging to 26 genera. Dominant species were 2 diatoms, Paralia sulcata, Skeletonema costatum and a dinoflagellate, Scripsiella trochoidea. Standing crops of phytoplankton in the surface layer were very low with cell density ranging from 5 to $3.8\;{\times}\;10^3\;cells/L$. Diatoms were controlled by the expanded low salinity coastal waters of the low salinity with high concentrations of nutrients. Otherwise phytoflagellates were dominant in the high temperature regions where the Tsushima warm currents approches the Southwestern Sea of Korea in early summer.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.412-413
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• 2000

준치(Ilisha elongate)는 분류학상 청어목(Clupeiformes), 준치과(Pristigasteridae)에 속하는 어종으로(Nelson, 1994; Kim and Kim, 1997, 우리나라, 일본, 동중국해, 싱가포르, 인디아 등지에 분포한다(Whitehead, 1987). 준치는 우리나라의 제주도 서남 해역에서 월동하고, 강 하구나 기수역에서 산란하며 남하하는 계절회유성 어종이다(Kim et al., 1994). (중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.194-196
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• 2012

본 연구에서는 해상교통관제제도(VTS)가 적용된 연안해역에서 해상통항흐름에 영향을 미치는 요소를 알아보고자 하였다. 본 연구의 목적을 달성하기 위해 해상교통환경조사는 2007년도부터 2012년까지 어장, 어로활동 및 해양구조물에 대한 마로해 인근해역에 대해 현지 조사방법을 사용하였다. VTS에서 제공하는 서비스종류에 대해 국제표준과 국내 적용 규정을 비교하고 2011년 연안해역에서 제공된 서비스에 대해 분석하였다. 동 해역의 해상교통흐름은 레이더와 선박자동식별장치 정보를 시공간적으로 중첩시켜 최근 6개월간 흐름패턴을 조사하였다. 연구 대상해역은 서남해 진도 인근해역($3,800km^2$)으로 통항분리제도와 탱커선통항금지해역 및 다도해해상국립공원을 포함하고 있다. 연구결과 연안해역에서 제공되는 서비스를 통해 해양사고를 18% 감소시켰다. 서비스 제공수준은 비정규분포를 보이며 공정능력은 향상된 것으로 나타났다. 안전한 해상교통환경 유지하기 위해 정기적인 연안해역 모니터링 및 관리체계의 확립에 대한 대응이 요구된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.5
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• pp.1489-1504
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• 2014

This paper is aimed to suggest a site specific partial safety factor of offshore wind turbine (OWT) pile foundation design for the offshore wind turbine complex at a West-South mainland sea in Korea. International offshore wind design standards such as IEC, GL, DNV, API, ISO and EUROCODE were compared with each partial safety factor and resistance factor. Soil uncertainty analysis using a large number of soil data sampled was carried out, and their results were adapted to estimate partial safety factor of OWT pile foundation through reliability analyses. The representative partial safety factor has been estimated as 1.3. When a proposed partial factor is willing to use to other sites, it is recommended that further studies on code calibration are required to validate their accuracy using more site characterization data.

• Journal of the Korean Society of Marine Environment & Safety
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• v.14 no.3
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• pp.219-225
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• 2008

Since July 2006, marine traffic safety management system have been enforced to support the vessels transiting across the coastal area and the vessels coming in and out of ports in southwestern coastal area where heavy traffic density and marine casualties occurred frequently. The marine traffic volume for the marine traffic environmental assessment was measured by the information from RADAR and AIS system in the area. The distributions of marine casualties were analyzed in the main routes and traffic separation schemes during the last five years and the navigational dangerous elements were investigated with the influence of natural environment, the distribution of fisheries and survey questionnaire. Marine accidents of merchant ships have a tendency to decrease gradually but in case of fishing boats, the rate of marine accidents have a contrary results in this area during the last five years. The dangerous elements on navigation appeared to be the dense force from June to August, fisheries activities and the vessels which not follow the compulsory watch on VHF-band radio communication equipments.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.449-451
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• 2001

우리 나라는 2,393.0$\textrm{km}^2$ (100%)의 갯벌을 보유하고 있으며, 이 중 서남해안 (목포, 영광, 무안, 신안, 해남)에 729$\textrm{km}^2$(33%)가 분포되어 있고, 이 가운데 331.1$\textrm{km}^2$ (13.8%)의 갯벌이 신안군에 분포되어 있다. 따라서 본 연구는 압해도 주변에 넓게 발달해 있는 갯벌에서의 저서동물의 군집구조와 주요 우점종을 분포 양상을 밝히고자 하였다. (중략)

• Journal of the Korean Society of Marine Environment & Safety
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• v.20 no.6
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• pp.640-645
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• 2014

This study aimed to determine the swimming suitability of sea and to suggest methods to address the problems on sea water color and green plants growing on sediment in the artificial created swimming in the beach of southwestern Korea. Sea water samples were collected from January to December of 2010 and analysis for SS, COD, $NH_4{^+}-N$, TP, MPN, sediment IL, ORP and plants on sediment. The results showed that the sea water under the swimming suitability "level of management" based on the relating high levels of SS and TP, but still suitable for swimming on the basis of MPN. Improving exchange seawater flow, dredging, coating and chemical treatment of polluted sediments in addition to removal of point sources and restriction of non point sources in the study area could improve the sea water quality and swimming suitability of the sea.