• Korea Petroleum Association Journal
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• s.266
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• pp.46-49
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• 2008

• Journal of the Korean Society for Marine Environment & Energy
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• v.4 no.4
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• pp.51-60
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• 2001

Recently there have been many trials and studies for various approaching to build the effective application environments for Marine Geographic Information System(GIS) in the cross sections of marine and GIS fields. But the most of these contributions were focused on their special purposes, and these vertically unmanaged and independent development necessarily caused more basic issues, which would be one of the primary elements to establish Marine Geospatial Information Infrastructure(MGII). Herein, we discuss a brief conceptual aspects of Marine GIS and its components, and then we try to give some fundamental issues especially concentrated on the needs and importance of standardization as well as guidelines for that.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.9-11
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• 2022

정부 추진 정책중에 중요한 요소로 작용하는 신재생에너지 사업중 하나인 해양풍력발전단지가 서해부근(목포)지역에 허가가 많이 들어오는 중이다. 전국적으로 해양풍력발전단지가 들어올 것을 대비해 항로표지 설치에 관하여 우리의 역할이 무엇이고 어떤 식으로 허가를 내야 하는지 심도있게 생각할 필요가 있다.

• Journal of the Korean Society for Marine Environment & Energy
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• v.15 no.2
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• pp.118-125
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• 2012

World population has increased rapidly following the industrial revolution, reaching 7 billion in 2012. Several forecasts estimate that this number will rise to about 8 billion in 2025. Improvements of living standards in developing nations have also raised resource and energy demands worldwide. In consequences, human beings have faced many global and urgent problems, such as global warming, water and food shortages, resource and energy crises, and so on. Many ocean utilization technologies for avoiding or reducing such big problems have been developed, for examples $CO_2$ ocean sequestration, seawater desalination, artificial upwelling, deepwater mining, and ocean energies. It is important, however, to assess such technologies from the viewpoints of sustainability and public acceptancy, since the aims of those technologies are to develop sustainable social systems rather than conventional ones based on fossil resources. Inclusive Marine Pressure Assessment and Classification Technology Research Committee (generally called IMPACT Research Committee) of Japan Society of Naval Architects and Ocean Engineers, has proposed Inclusive Impact Index "Triple I" as an indicator, which can predict both environmental sustainability and economical feasibility, in order to assess the ocean utilization technologies from the viewpoints of sustainability and public acceptancy. This index was considered by combining Ecological Footprint and Environmental Risk Assessment. The Ecological Footprint and the Environmental Risk Assessment are introduced in the first part of this paper. Then the concept and the structure of the Triple I are explained in the second part of this paper. Finally, the economy-ecology conversion factor in Triple I accounting is considered.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2007.12a
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• pp.351-353
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• 2007

해양온도차를 이용한 냉난방 시스템의 도입을 위한 해상 및 기상 실측을 통한 자원조사 및 시스템에 관한 기술적인 내용을 기술한다.

• Water for future
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• v.54 no.1
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• pp.20-28
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• 2021

• Journal of Wetlands Research
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• v.26 no.2
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• pp.182-195
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• 2024

Tidal current power generation is a power generation method that produces energy using tidal currents generated by tidal phenomena. Tidal current power generation is a sustainable and regular energy production because tidal phenomenon occurs as long as the earth exists. Many countries are focusing on the development of tidal energy, but there are still concerns about the impact of tidal energy on the marine animals. In the present study, we reviewed on the various impacts of tidal power generation on marine animals and the future assignments.

• Journal of the Korean Society for Marine Environment & Energy
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• v.8 no.4
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• pp.203-212
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• 2005

Anthropogenic emissions of greenhouse gases, particularly carbon dioxide($CO_2$) which arises mainly as wastes from the fossil fuel burning processes, are causing global warming. The effects of global warming become increasingly felt all over the world including sea level rise and extreme weather. The more direct consequences of the elevated atmospheric $CO_2$ on the ocean is the acidification of the surface ocean which brings a far reaching adverse impact on the life at sea and probably on the whole ecosystem of the planet. Improvement in energy efficiency and use of alternative energy sources are being made to reduce $CO_2$ emissions. However, a rapid transition to alternatives seems unachievable within a few decades due to the constraints on the associated technology and socio-economic factors in the world, since fossil fuels make up approximately 85% of the world's commercial energy demands. It has now been recognized that capture and geological sequestration of $CO_2$ could significantly reduce its emissions from fossil fuel utilization and therefore provides the means to rapidly achieve large reductions in $CO_2$ emissions(excerpts from London Convention, LC/SG 28, 2005). In Korea, well-developed sedimentary basins are spread over the vast continental shelf and slope regions, whereas, the land is densely populated and limited in area. Consequently, the offshore area is preferred to the land for the sites for geological sequestration. The utilization of the offshore area, however, may be subject to international agreements including London Convention. In this paper, the recent trends in technologies and regulations for $CO_2$ capture and geological sequestration are described to encourage its applications in Korea.

• Journal of Energy Engineering
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• v.28 no.1
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• pp.65-72
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• 2019

The Korean government is aiming to produce 20% of the electricity using renewable energy sources by 2030. Ocean renewable energy sources which are abundant in South Korea can do an important role to achieve the goal. This paper introduces a tidal current energy converter utilizing flow induced vibrations which can efficiently work even in the currents slower than 1.0m/s and suggests optimal designs of the tidal energy converter based on speeds of the tidal currents in seven different coastal regions in South Korea. Moreover, the theoretical annual energy production by the tidal converter is estimated at theses costal areas. The total amount of the annual energy production by the tidal energy converter is predicted as 221.77 TWh which is equivalent to 42.3% of the electric consumption of South Korea in 2013. The result shows that the tidal current energy converter can be an important role to achieve the goal of the Korean government.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.85-87
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• 2018

전 세계적으로 온실가스 배출 규제가 강화되고 있고 에너지 절감 및 환경오염 문제가 없는 재생에너지에 대한 관심이 높아지고 있다. 육상 전력을 공급받기 어려움 해양 구조물의 경우에는 배터리와 같은 에너지 저장장치 또는 재생에너지를 활용하여 독립 전원 시스템을 구성하게 된다. 해양에서 활용이 가능한 재생에너지로는 태양광, 풍력, 파력, 조력등이 있으며 이러한 자연 에너지를 활용하는 재생에너지 발전 시스템의 경우 환경의 영향을 많이 받게 되므로 안정적인 전력 생산에 어려움이 있다. 예를 들어 태양광 발전 시스템의 경우 일조량에 따라 발전량이 결정되고, 풍력 발전 시스템의 경우 풍속 및 풍향이 발전량에 영향을 미친다. 따라서 독립전원시스템에서 태양광-풍력-파력의 멀티소스를 갖는 하이브리드 발전 시스템을 구성하여 기상상태에 따른 발전량을 보완가능하게 구성하면 보다 안정적으로 전력을 얻을 수 있다. 본 연구에서는 항만 및 협수로를 항해하는 선박 안전을 위해 설치된 등부표에 적용하는 해상하이브리드발전시스템을 설계하고 실증을 통해 하이브리드 발전시스템의 발전 특성을 확인한다.