• Title/Summary/Keyword: Western coast

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3.5kHz seismic images of the gas-charged shallow sediment at Kwangyang Bay and the Yeosu Sound on the southern coast of Korea (광양만과 여수해만의 가스함유 표층퇴적물의 3.5kHz 탄성파 영상)

  • 오진용
    • Economic and Environmental Geology
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    • v.33 no.3
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    • pp.239-246
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    • 2000
  • The 3.5kHz sub-bottom profiling was carried out over both Gwangyang Bay and the Yeo Sound . High -resolution digital images of uppermost sediment layers are obtained from the field data which were originally recorded in analog mode. Most prominent feature along the acoustic profiles is the chaotic reflections which imply the presence of shallow gas within the silty sediments. In the western part of Gwangyang Bay, the gas-charged sediments are assoicated with the acoustic turbidity of the blanket type. Across the Seomjin Delta in the eastern part of Gwangyang Bay, the gas-charged seismic facies are observed just beneath the sea bottom. In the western Yeoul Sound , the gassy seiments occur widely , whereas it is rare in the eastern counterpart with the <30-m-deep channel. We postulate that this gas was biogenetically produced within the organic-rich deposits.

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The study on the Base point and baseline in Korea, Japan, and China (한반도 주변의 영해기점 및 기선에 관한 연구 - 한국, 중국, 일본을 중심으로)

  • Kim, Baek-Su;Choi, Yun-Soo;Park, Byung-Moon;Jeon, Chang-Dong
    • Spatial Information Research
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    • v.16 no.3
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    • pp.331-342
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    • 2008
  • The countries are trying to expand the sea limit such as the territorial sea, fishing zone or the exclusive economic zone as far as the Law of the Sea permit to do for the benefit of their national interest. Especially, they are eager to claim the base point where it locates far from the coastline even if it is uninhabited island or reef under the sea. The baseline has been claimed to maximize the territorial sea. Another way to expand the sea limit is to lower the vertical datum to change the land limit. China claimed Dongdo which is located about 79 miles far from the coast as the base point. Japan also claimed many uninhabited island or the reef which is located very far from the coast such as Okino Dorishima. As Korea is the party who negotiate the maritime limit with Japan and China, we should be keen and sensitive on the issues claimed by neighboring countries in terms of base point and the baseline. This paper is to review the characteristics of the base points or baselines of neighboring countries and to suggest the views how to maintain and to relocate our base points. As western coast of Korean peninsula is one of the largest tide fluctuation zone in the world, with long tidal record to prove the vertical datum adjustment, Korea can find the way to lower the vertical datum especially in Yellow Sea. So, major and critical tidal station has to be set up along the western coast to verify tide fluctuation record which can be met with international standard.

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Mitigation in Saemangeum Bay

  • Shin, Moon-Seup;Tetsuo Yanagi;Hong, Sung-Kun
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 1995.10a
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    • pp.139-140
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    • 1995
  • The reclamation area of Saemangeum(Kunsan) located between 126。10´E - 126。50´ E and 35。35´N - 36。05´N at the western coast of Korea. The construction of the 33km sea dike is building in the Saemangeum area. When the construction of the sea dike in the coastal region takes plase, there exists, a certain amount of soil which is diffused by the tidal current. (omitted)

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The Biology of Neomysis awatschensis (Crustacea: Mysidacea) in Korea. 1. Systematics (한국산 곤쟁이, (갑각망:곤쟁이목)의 생물학적 연구 1. 분류학적인 기재)

  • 유광일;최승민
    • 한국해양학회지
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    • v.20 no.2
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    • pp.61-66
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    • 1985
  • A mysid, Neomysis awatschensis(Brandt), which distributes abundantly in brackish lakes, estuaries and salt marshes along the southern and western coast of Korea, from Kimhae to Inchon is described and recorded as new to Korea. The world distribution of the species are also revised with short discussion.

Sexual Maturation of the Top Shell, Omphalius rusticus (Gastropoda: Trochidae), on the Western Coast of Korea

  • Lee, Ju-Ha
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.10a
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    • pp.244-245
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    • 2000
  • The top shell, Omphalius rusticus (Gastropoda: Trochidae), is marine mollusk inhabiting underneath a rock in the intertidal zone of the coasts of Korea and Japan, and it is one of the edible gastropods. This species is a herbivorous animal. Up to now, there have been some reports on the Trochidae: aspects of classification, spawning periodicity, production, growth and size-frequency distribution of living populations, feeding, reproductive cycle, and induction of larval metamorphosis. (omitted)

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Comparison of Chemical Characteristics between Rain and Snow on the Western Coast of Korea (서해안 지역 강우와 강설의 화학적 특성 비교)

  • 강공언;방소영;신대윤
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2001.11a
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    • pp.443-444
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    • 2001
  • 대기오염물질이 대기중에 배출되게 되면 그 일부는 오염 발생원의 인접한 지표면에 건성 침착하여 제거되지만 그 대부분은 장거리 이동하면서 2차 오염물질로 변환되어 건성침착 (dry deposition)하거나 강수시 습성 침착 (wet deposition)에 의해 지표면으로 제거된다 (원 굉, 1991, Legge and Krupa, 1990). 습성침착의 대표적인 형태로는 강우와 강설이 있으며, 이것은 대기중 오염물질이 지표로 제거되는 중요한 경로라 하겠다. (중략)

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Nippoleucon projectus, a New Species of Leuconid Cumaceans (Cumacea, Leuconidae) from Korea

  • Lee, Chang-Mok;Lee, Kyung-Sook
    • Animal cells and systems
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    • v.10 no.2
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    • pp.93-101
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    • 2006
  • A new species of leuconid cumaceans, Nippoleucon projectus n. sp. is described on the basis of the specimens collected from western shallow coast of the South Korea. This new species is easily distinguished from two previously recorded species (N. hinumensis and N. enoshimensis) in having the fifth abdominal segment prominently projected to rear at dorsal posterior portion and the carapace of the female with three spines on the frontal lobe.

A study on Surface Treatment of Dredged fill Ground (준설토의 표층처리에 관한 연구)

  • 정규향;이문수;이광찬;윤석군;오재화
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 1999.10c
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    • pp.569-574
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    • 1999
  • In Soft ground of south-western coast of our country necessity of marine indutrial complex and container facility has been remarkable. Site construction for habor facility is one of the most urgent problems. Consolidation of dredged fill has become important task. In addition, volume change of dredged fill should be examined carefully. This study dealt with consolidation of dredged fill by PCDDF and in order to secure trafficability of heavy equipment for surface treatment should be studied.

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