• Title/Summary/Keyword: ocean environmental

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Improving Policies and Regulations for Environmental-friendly Ocean Renewable Energy Development in Korea (해양에너지 개발사업의 친환경적 개발을 위한 정책 및 제도개선 방안)

  • Park, Jeong-Il;Kim, Taeyun
    • Journal of Environmental Impact Assessment
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    • v.23 no.4
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    • pp.237-250
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    • 2014

  • A wide range of projects for ocean renewable energy are currently in development around the world and ocean energy industries continue to receive significant support from their governments. Surrounded by sea on three sides, Korea has potentially abundant renewable ocean energy resources, which include tidal current, tidal range, offshore wind power, osmotic pressure and ocean thermal energy. Numerous ocean renewable energy projects has been developed in Korea. Nevertheless, there are some concerns that those developments often select an environmentally unsuitable location and/or there are very few existing information on those environmental effects. The purpose of this study is to improve supporting policies and regulation systems of ocean renewable energy development in Korea by reviewing and compiling government policies and environmental assessment systems related to ocean renewable energy development around the world. The study suggests several policy implications for its environmental-friendly development in Korea, including requirements of strategic environmental assessment for proactive and environmentally suitable site selection of ocean renewable energy development and continuous post-development environmental monitoring, and so on.

  • https://doi.org/10.14249/eia.2014.23.4.237 인용 PDF KSCI

Pre-service Elementary Teachers' Understanding of Ocean Acidification (해양 산성화(Ocean Acidification)에 대한 초등 예비교사들의 이해)

  • Kim, Sung-Kyu
    • Journal of Environmental Science International
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    • v.26 no.5
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    • pp.661-674
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    • 2017

  • This study used questionnaires to investigate how pre-service elementary teachers understand ocean acidification. As a result of gender, female teachers were more aware of ocean acidification than male teachers, but male teachers had a higher average rate of correct answers, with a lower standard deviation. Teachers from the natural sciences knew more about ocean acidification than did teachers the liberal arts. Teachers ranked environmental crisis in order of most dangerous to least dangerous as follow: global warming and the greenhouse effect, ozone depletion, ocean acidification, and acid rain. About 46.7% of teachers learn about ocean acidification through education, followed by broadcasts, school lectures and the internet. The educational materials most desired for teachers were videos related to ocean acidification. Pre-service elementary teachers have two broad perspectives on ocean acidification. Firstly, they refer to economic loss and food shortages, and secondly, they note that there is a need for improved awareness and publicity about ocean acidification. The role of elementary school teachers is important because their awareness of environmental issues has a considerable effect on teachers perception of the environment. Revitalizing education on ocean acidification and government support are necessary to effectively communicate the seriousness of ocean acidification. Lastly, we need to study ocean acidification in detail so as to be able to persevere toward protecting our ocean ecosystem.

  • https://doi.org/10.5322/JESI.2017.26.5.661 인용 PDF

Comparison of Chlorophyll Algorithms in the Bohai Sea of China

  • Xiu, Peng;Liu, Yuguang;Rong, Zengrui;Zong, Haibo;Li, Gang;Xing, Xinogang;Cheng, Yongcun
    • Ocean Science Journal
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    • v.42 no.4
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    • pp.199-209
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    • 2007

  • Empirical band-ratio algorithms and artificial neural network techniques to retrieve sea surface chlorophyll concentrations were evaluated in the Bohai Sea of China by using an extensive field observation data set. Bohai Sea represents an example of optically complex case II waters with high concentrations of colored dissolved organic mattei (CDOM). The data set includes coincident measurements of radiometric quantities and chlorophyll a concentration (Chl), which were taken on 8 cruises between 2003 and 2005, The data covers a range of variability in Chl in surface waters from 0.3 to 6.5 mg $m^{-3}$. The comparison results showed that these empirical algorithms developed for case I and case II waters can not be applied directly to the Bohai Sea of china, because of significant biases. For example, the mean normalized bias (MNB) for OC4V4 product was 1.85 and the root mean square (RMS) error is 2.26.

  • PDF KSCI