• Title/Summary/Keyword: Marine Environment

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A Study on the Establishment of Oil Spill Response Measures in Yeosu Waters (여수해역에 있어서 기름유출에 대한 방제대책 수립에 관한 연구)

  • 국승기;윤종휘;김원돈;이상호
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.7 no.2
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    • pp.23-37
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    • 2001
  • Marine environment has been polluted and damaged by many sources such as industrial waste, natural seepage, oil spill and offshore production etc. Among them, oil spill from oil tankers is one of most harmful sources to marine lives as its input amount is huge at a limited area for short period. In Korea, the port of Yeosu is known to be very vulnerable to oil spill with large amount of petroleum transported across the harbour. In this regards, the author analyzed and reviewed marine environment and appropriate response to marine oil spill at this area. For these purposes, oceanographic and meteorologic features as well as regional characteristics of harbor facilities, shipping routes, marine traffic and fisheries were investigated, also traffic densities were analyzed in order to check marine accident probabilities making direct observations for 72 hours visual1y and by portable radar.

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Marine Environment Monitoring System based Open Source (오픈소스 기반 해양환경 모니터링 시스템)

  • Park, Sun;Cha, ByungRae;Kim, Jongwon
    • Smart Media Journal
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    • v.6 no.3
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    • pp.75-82
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    • 2017
  • Recently, the marine monitoring technology is actively being studied since the sea is a rich repository of natural resources that is taken notice in the world. In particular, the marine environment data should be collected continuously in order to understand and analyze the marine environment, however the study of automatic monitoring of marine environment in Korea is not enough. In this paper, we proposed the marine environment monitoring system based on open source. The proposed system can be designed as a scale out system using Hadoop based time series database which it can easily process the increasing collection data by a scale out computer resources. It can also be used to analyze marine data by visualizing collected data.

Electric power consumption predictive modeling of an electric propulsion ship considering the marine environment

  • Lim, Chae-og;Park, Byeong-cheol;Lee, Jae-chul;Kim, Eun Soo;Shin, Sung-chul
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.11 no.2
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    • pp.765-781
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    • 2019
  • This study predicts the power consumption of an Electric Propulsion Ship (EPS) in marine environment. The EPS is driven by a propeller rotated by a propulsion motor, and the power consumption of the propeller changes by the marine environment. The propulsion motor consumes the highest percentage of the ships' total power. Therefore, it is necessary to predict the power consumption and determine the power generation capacity and the propeller capacity to design an efficient EPS. This study constructs a power estimation simulator for EPS by using a ship motion model including marine environment and an electric power consumption model. The usage factor that represents the relationship between power consumption and propulsion is applied to the simulator for power prediction. Four marine environment scenarios are set up and the power consumed by the propeller to maintain a constant ship speed according to the marine environment is predicted in each scenario.

Global Wanning Effect on Marine Environments and Measure Practices against Global Wanning (지구 온난화에 따른 해양환경 변화와 대책)

  • Kim, Do-Hee
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.16 no.4
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    • pp.421-425
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    • 2010
  • It has been mown that the global warming has an effectet on marine ecosystem and marine environments. Then, fisherman's activity and fishing production were decreased by changing of marine plankton composition and increasing of harmful marine organisms such as jellyfish, starfish and green laver bloom. Harmful red tides algae bloom and the deserted sea bottom often occurred due to increasing of sea water temperature and sea level rising in Korea. In this report, the cause and mechanism of the global warming phenomenon and it's effect on marine environment and marine ecosystem were introduced, and measures against global warming were suggested

Improvement of the EIA for Land Reclamation Projects in the Coastal Areas of Korea (해양매립사업 환경영향평가의 개선방안)

  • Jang, Ju-Hyoung;Eom, Ki-Hyuk;Kwon, Kee-Young;Hong, Sok-Jin;Park, Jae-Hyeon;Kim, Gui-Young
    • Journal of Environmental Science International
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    • v.16 no.7
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    • pp.847-853
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    • 2007
  • In Korean coastal areas, land reclamations are main development projects that should be based on environmental impact assessment(EIA), because those human interventions can change coastlines, damage tidal flats, and pollute adjacent areas to threat seafood safety and devaluate overall ecosystem service value. Existing procedures of the EIA for land reclamation projects were diagnosed and evaluated to enhance them. Problems were identified in the designation of survey areas, the consistency in survey sites and periods, the standardization of survey methods and reports, the confidence of survey results and the verification of predictions. Lack of integration was noticeable and could be improved by synthesizing different assessments from topography geography, marine physics, marine chemistry and marine biology. We suggest that successful precautionary marine environment management requires readjusting the cost of EIA, recruiting experts in marine environment, constructing database and establishing specialized assessment system.

Improvement of the Environmental Impact Assessment and Post-environment Impact Survey Reports Using Marine Environment Assessment Indices (해양환경 평가지수를 활용한 환경영향평가서 및 사후환경영향조사결과 통보서 개선 방안 연구)

  • Lee, Eojin;Kim, Taeyun
    • Journal of Environmental Impact Assessment
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    • v.30 no.2
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    • pp.61-74
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    • 2021
  • In this study, we used marine environment assessment indices to evaluate impacts of various development projects on the marine environment. TheWaterQuality Index (WQI) was applied in the field of marine water quality and the Cleanup Index of Harmful Chemicals (CIHC), the Cleanup Index of Eutrophication (CIET), the Enrichment Factor(EF) were used in the field of marine sediment. In the field of marine benthic organisms, the Benthic Health Index (BHI) and the Benthic Pollution Index (BPI) were utilized. Each assessment index was calculated using the data observed in the development project, and its characteristics and usefulness were evaluated. The assessment method and criteria were clearly defined for WQI, CIHC, and BHI. Furthermore, through these indices, an integrated environment impact analysis was possible. Apart from the indices presented in this study, there are various indices that can be used for evaluating the marine environment. Therefore, it is important to utilize appropriate indices according to the characteristics of each project.

Analysis of Water Quality caused by Improvement of Sewage Treatment Plant in Masan Bay (하수처리장 개선이 마산만 수질에 미치는 영향분석)

  • Oh Hyun-Taik;Goo Jun-Ho;Park Sung-Eun;Choi Yun-Sun;Jung Rae-Hong;Choi Woo-Jeung;Lee Won-Chan;Park Jong-Soo
    • Journal of Environmental Science International
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    • v.14 no.8
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    • pp.777-783
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    • 2005
  • For the sustainable management of marine ecosystem in Masan Bay, we have to assess the carrying capacity and standard of target water quality. In this research, we assume that all pollutants loads are treated in Dukdong sewage treatment plant, then we simulate the physical-biological model for prediction water quality for the achievement of standard water quality. In 2001 year, for the achievement of COD 2.5 mg/L, we need to reduce COD $90\%$, nitrogen $30\%$, phosphate $90\%$ than that of the present value, According to these results, the water quality of sewage treatment plant is required to treat COD 13.5 mg/L, nitrogen 33.3 mg/L, phosphate 6,0 mg/L. If the sewage treatment plant will be expanded much larger in 2011, it will need to be treated in COD 6.6 mg/L, nitrogen 2.5 mg/L, phosphate 5 mg/L for the achievement of water quality standard in COD 2.5 mg/L.

The Contents Analysis of Ocean Environment of Textbooks for Fisheries and Marine High School students (수산·해운계 고등학교 교과의 해양환경 내용분석)

  • Kim, Sam-Kon;Kim, Jong-Hwa
    • Journal of Fisheries and Marine Sciences Education
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    • v.16 no.2
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    • pp.143-155
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    • 2004
  • The aims of this study are to analysis about the contents associated with the ocean environment compared 17 special-subject textbooks to 2 common-subject textbooks, and to make some proposals for construction of contents. The results of it are as follows; 1. Only 17 books among 36 textbooks taught by the fisheries and marine high schools are contained to some contents related with ocean environment. The contents associated with the ocean environment take possession of 90%, 62% each of total pages in the textbooks, 'ocean pollution' and 'ocean environment'. 2. Of compulsory texts, namely, 'general fisheries', 'general ocean' and 'information treatment of fisheries-marine', the former 2 books are composed of 4.5%, 36.2% each relating with ocean environment. But the last one is nothing. 3. Therefore, even a little contents of ocean environment and its conservation, it is necessary to add as the reasonable rate to the characteristics of each book in 36 special-subject textbooks. 4. And also it is shown that the common-subject textbooks,'ocean science', ' earth science I' and 'earth science II', are composed of 35.7%, 10%, 16.7% each. So we'd like to recommend that the contents of ocean pollution and environmental conservation have to add more.

Local Citizenry Consciousness survey of 『Campaign for Shaping Mokpo into Beautiful Seaport』 2. Citizenry Consciousness of Marine Environment (미항목포가꾸기에 관한 지역시민의식 조사 2. 해양환경에 관한 시민의식)

  • Kim Kwang Soo
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.7 no.2
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    • pp.98-103
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    • 2004
  • Recently, a New Great Harbour Bridge between Mokpo City and Koha Island is planned to be built across Mokpo Inner Harbour, and Namak New Town is under construction adjacent to Mokpo. Citizels' concorn of and participation in 「Campaign for Shaping Mokpo into Beautiful Seaport」 are necessary to match the view of Mokpo harbour with natural scenery beautifully and with marine environment harmoniously. Citizens'ㄹ levels of consciousness of coastal and marine environment were ascertained through questionnaire surveys of local citizenry attitudes and opinions, and citizenry action plans for the conservation of coastal and marine environments around Mokpo harbour are suggested on the basis of the results of questionnaire surveys. Citizens' voluntary participations in local policy for the control of marine wastes production and in a campaign for the collections of marine debris and wastes around beaches and coastal areas are required. The operation of municipal sewage treatment plants is to be performed effectively and efficiently, and to be monitored and evaluated periodically by the general public, the local federation for environmental movement or NGO. The development and performance of marine environmental education programs and an enlightenment campaign for environment preservation are to be incessantly done in cooperation with local residents. Only when local government of Mokpo collects the public opinions and continues to shape Mokpo into international beautiful seaport in the direction of a reflex of public opinion, coastal and marine environment around Mokpo harbour can be kept in good condition with citizens' positive participation in citizenry long-term practical action plans for environment conservation.

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