• 한국산림과학회지
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• 제94권3호통권160호
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• pp.197-204
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• 2005

동해에서 발생한 쓰나미가 우리나라에 미치는 영향을 파악하고, 해안림이 쓰나미의 속도와 에너지를 저감시키는 기능 및 비구조물 대책에 대하여 일본의 사례를 중심으로 분석하였다. 자료를 분석한 결과, 1983년과 1993년에 동해에서 발생한 쓰나미는 우리나라 동해안에 1시간 50분만에 도달하였으며, 이로 인해 인명, 재산 및 침수피해가 발생하였다. 또한 쓰나미에 대비하여 해안림을 폭 60m로 조성하면 속도는 30%, 에너지는 10%로 각각 저감되므로 60m 정도의 폭을 확보하도록 하고, 해안림의 임분구조는 혼효림의 복층림으로 하며, 방조시설을 함께 시공하여야 한다. 이와 함께 쓰나미에 대한 대응법과 주의점 등에 대한 적극적인 홍보와 같은 비구조물 대책을 마련하여야 할 것이다.

• Ocean and Polar Research
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• 제39권3호
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• pp.169-179
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• 2017

The "GeoDrifter" is a newly-developed surface drifter with high temporal resolution. It is the first time that high-frequency drifters have been deployed in the East/Japan Sea. The purpose of this study is to introduce the phenomena experienced by these drifters flowing along with the Tsushima Current across the East/Japan Sea, focusing on high-frequency variability, and to discuss them in comparison with previous observations. The observed basin-scale circulation of the Tsushima Current generally coincides well with the known schematic circulation. The GeoDrifter trajectories also show inertial oscillations almost everywhere in the oceanic regions of the East/Japan Sea, strong semi-diurnal tidal currents in the western part of Korea Strait, diurnal currents much stronger than semi-diurnal currents in the upstream region of the Nearshore Branch off the Japanese coast, and many warm eddies in the Yamato Basin, all comparable to the observational results reported in the previous studies. An interesting point is that the semi-diurnal tidal currents undergo a great spatial variation in the western part of the Korea Strait. The observed features that cannot be explained are, among others, strong counter-clockwise motions with oscillating period about 51 hours appearing in the upstream region of the Nearshore Branch off the Japanese coast and the different tidal behaviors between upstream and downstream regions of the latter.

• 대한지질공학회:학술대회논문집
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• 대한지질공학회 2005년도 정기총회 및 학술발표회
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• pp.107-110
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• 2005

현재 한국의 지진 관측은 1905년도에 시작된 이후로 계속적인 지진 관측망 확충과 새로운 장비의 도입으로 선진국 못지않은 장비를 보유하고 있지만, 지진의 관측과 분석에 있어서는 그 수준이 미흡한 것이 현실이다. 특히, 동해안 지진원 인자 분석에 있어서 시간이 많이 소요되기 때문에 지진 경보나 지진 해일 경보를 발령하는데 어려움이 있다. 이번 연구에서는 일본에서 사용하는 지진 관측망, 한국 지진 관측망(KMA), 그리고 국제 관측망(IRIS) 지진 관측소(4개소)의 파형 포맷을 하나의 공통 파형 포맷으로 변환 ${\cdot}$합성하고 공유 분석 프로그램인 FESNET(극동 지진 관측망 분석 체계)를 구축하여 2004년 5월 29일 울진 지진과 2005년 3월 20일 일본 후쿠오카 지진의 분석을 행하였다.

• 한국어류학회지
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• 제21권2호
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• pp.106-117
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• 2009

한국 동해안에서 채집된 민태과 어류 표본을 검토한 과정에서 Coryphaenoides(속명신칭: 긴가시민태속)에 포함되는 2종 Coryphaenoides marginatus(국명신칭: 큰눈긴가시민태), C. microps(국명신칭: 작은눈긴가시민태)과 Coelorinchus(속명신칭: 꼬리민태속)에 속하는 2종 Coelorinchus macrochir(국명신칭: 긴팔꼬리민태), C. formosanus (국명신칭: 타이완꼬리민태)은 한국미기록종으로 확인되어 사진과 함께 재기재하고 한국 동해안에 분포하는 민태과(Macrouridae) 2속 8종의 속 및 종검색표를 제시하였으며 지리적 분포에 대하여 기록하였다.

• Strategy21
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• 통권37호
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• pp.193-241
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• 2015

China, Japan and Korea are the world's top 10 energy consumers, and so very interested in the development of seabed hydrocarbon resources in order to meet their energy demands. The East China Sea is the tri-junction area where three countries' entitlements on the maritime boundaries are overlapped. There are abundant oil reserves in the East China Sea, and therefore competitions among countries are growing to get control of them. Although these countries have concluded the bilateral agreements to jointly develop resources in the East China Sea, they do not function as well. Because joint development and management of seabed petroleum resources can lead to stable development system, and to lower possibility of legal and political disputes, the needs for joint development agreement among three countries are urgent. Meanwhile, Northeast Asian seas are semi-closed seas, which are geographically closed and vulnerable to marine pollution. Moreover there are a lot of nuclear power plants in coastal area, and seabed petroleum resources are being developed. So it is likely to occur nuclear and oil spill accidents. Fukushima nuclear disaster and Bohai Bay oil spill accident in 2011 are the cases to exhibit the potential of major marine pollution accidents in this area. It is anticipated that the risks become higher because power plants and offshore oil platforms are extending gradually. Therefore, the ways to seek the joint marine environmental protection agreement focused on regulation of nuclear power plant and offshore oil platform have to be considered. In this paper, we try to find the way to make joint development and joint environmental protection agreement in Northeast Asian seas. We concentrate on the measure to drive joint development of seabed petroleum deposits in East China Sea's overlap area, despite of maritime delimitation and territorial disputes, and we try to drive joint marine environmental protection system to respond to marine pollution and accidents due to offshore oil platform and nuclear power plants. Through these consideration, we seek solutions to deal with lack of energy, disputes of maritime territorial and boundary delimitation, and marine pollution in Northeast Asia.

• Animal Systematics, Evolution and Diversity
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• 제24권2호
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• pp.155-160
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• 2008

Eight caprellids are collected from the several islands off Yeonggwang, Jeollanam-do at June 2007. Among them Caprella chelimana Mayer, 1903 is newly added to the Korean caprellid fauna. We described this species with illustrations and mentioned some differences from Mayer's original descriptions. Caprella subtilis is also the first record since Mayer reported this species from East Sea (Sea of Japan) in 1903.

• Ocean and Polar Research
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• 제24권4호
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• pp.325-329
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• 2002

Concentrations of Fe, Mn, Zn, Cu, Pb and Cd in two seaweed species (Sargassum miyabei and S. pallidum) from different areas in Amursky Bay near Vladivostok were determined. An assessment of heavy metal pollution in this bay was made and the results were compared with those from some localities in the world ocean.

• Strategy21
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• 통권30호
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• pp.177-199
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• 2012

As is generally known, the sovereignty dispute over the Senkaku Islands between China/Taiwan and Japan was triggered by a report commissioned by the UN in 1968, which reported the possibility of a substantial amount of petroleum and natural gas buried in the South China Sea. When the administrative authority over the Ryukyu Islands was transferred from the US to Japan in 1972, jurisdiction over the Senkaku Islands was also transferred. A dispute ensued between China (Taiwan) and Japan over the Senkaku Islands except during the period in which formal relations were established between the two states. This paper will take a look particularly at the events that occurred in the 2000's and discuss their recent trends and aspects of the dispute. Though China and Japan agreed to joint resource development in 2008, the agreed zone was a very small area adjacent to the Korea-Japan Joint Continental Shelf Development Zone, and the points of agreement have not been implemented. China has been developing four oil fields including Chunxiao in its waters adjacent to the median line asserted by Japan. However, China also has been excluding the participation of Japan, while Japan has been strongly objecting to the unilateral development of oil fields by China. If indeed the oil fields on China's side are connected past the median line asserted by Japan, then China's unilateral development will infringe upon the potential sovereign rights of Japan, thereby violating international law.

• 한국해양학회지
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• 제18권1호
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• pp.1-9
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• 1983

1970∼1979년 기간중 하계의 동해에 있어서 대마난류의 북상한계와 연변동을 규명하기 위해서 염분최대를 추적하고, 이값에 대한 deltaT(thermosteric anomaly) 에 관하여 검토했다. 29 N 이북의 동지나해로부터 동해북부해역에 이르기 까지 대마난류의 염분최대치 및 그 층의 낮아지는 경향을 보였으며, 그 층도 얕아졌다. 동해의 대마난류역에서 염분최대가 나타나는 층에 대한 deltaT의 값은 220-260 cl/t 이었다. 240cl/t면상의 34.4 등염선을 지표로하여 조사한 대마난류의 북상한계 는 한국 동해안측에서는 4 N 이남해역으로 한정으며, 동염선은 두가지 형태로 나타났다. 즉 동서방향인한국동해안쪽으로 치우쳐 북상하는 경우와 남남서-북북동 방향인 일본연안쪽으로 북상하는 경우였다.

• Ocean and Polar Research
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• 제24권4호
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• pp.399-406
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• 2002

Trace metals were investigated for the surface seawaters and mussels collected in adjacent sea to the Dokdo during 1999-2000. This study reports the temporal and spatial distributions of trace metals in seawaters and mussels of the Dokdo coastal areas. Clean technique for trace metal analyses was employed in all manipulations including the sampling and pretreatment procedures. The concentrations of dissolved Cu, Cd and Pb in the surface seawaters were similar to those of the previous data in the East Sea. Contents of particulate Al, Fe, Mn and Co were influenced by input of detrital materials from the Dokdo. The average EFs of particulate metals were to the order of Cd > Zn > Pb > Cu > Ni > Mn > Co > Fe, and the high values in Cd and Zn may be closely related to the preferential uptake of biogenic particles. With the exception of Cd, all metal contents in the mussels were in the same ranges with those from other world coastal areas. The Cd accumulation factor of mussel/seawater in this study was abnormally much higher than previous data from the Korean coasts.