• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.327-331
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• 2007

23 tropical cyclones of tropical storm(TS) intensity or higher formed in the western North Pacific and the South China Sea in 2006. The total number is less than the 30-year $(1971{\sim}2000)$ average frequency of 26.7, Out of 23, 15 cyclones reached typhoon(TY) intensity, three severe tropical storm(STS) intensity, and five TS intensity. The tropical cyclone season in 2006 began in May with the formation of CHANCHU(0601). While convective activity was slightly inactive around the Philippines from late June to early August. In addition, subtropical high was more enhanced than normal over the south of Japan from May to early August. Consequently, most tropical cyclones formed over the sea east of the Philippines after late June, and many of them moved westwards to China. CHANCHU(0601), BILIS(0604), KAEMI(0605), PRAPIROON(0606) and SAOMI(0608) brought damage to China, the Philippines, and Vietnam. On the other hand, EWINIAR(0603) moved northwards and hit the Republic of Korea, causing damage to the country From late August to early September, convective activity was temporarily inactive over the sea east of the Philippines. However, it turned active again after late September. Subtropical high was weak over the south of Japan after late August. Therefore, most tropical cyclones formed over the sea east of the Philippines and moved northwards. WUKONG(0610) and SHANSHAN(0613) hit Japan to bring damage to the country. On the other hand, XANGSANE(0615) and CIMARON(0619) moved westwards in the South China Sea, causing damage to the Philippines, Thailand, and Vietnam. In addition, IOKE(0612) was the first namded cyclone formed in the central North Pacific and moved westwards across longitude 180 degrees east after HUKO(0224).

• 한국수산과학회지
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• 제47권4호
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• pp.424-430
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• 2014

Two major temperature fronts, the Subpolar (Gosung, Gang-won-do; $38^{\circ}-41^{\circ}N$) and Thermal (Jukbyun, Gyeong-sang-buk-do; $36^{\circ}-37^{\circ}N$) fronts, are found in the East Sea along the east coast of Korea. These are located roughly where the Tsushima Warm Current and North Korea Cold Current intersect. To clarify the effect of the Thermal Front, we investigated seasonal variation in fish species composition using set nets in two areas located north (Jangho, Gang-won-do) and south (Hupo, Gyeong-sang-buk-do) of Jukbyun, Gyeong-sang-buk-do, and compared the sea water temperature and salinity. We collected a total of 38 fish species in Hupo and 25 in Jangho. Trachurus japonicus was the most common species at both sites, but the subdominant species differed. At Hupo, the subdominant species were Konosirus punctatus and Diodon holocanthus, whereas Clupea pallasii and Scomber japonicus were subdominant at Jangho. Based on Froese and Pauly (2014), subtropical fishes accounted for 55% of fish in Hupo but only for 33% in Jangho. The difference in fish species composition was most obvious in May and August. According to the Korea Hydrographic and Oceanographic Administration, sea surface temperature and salinity were slightly higher at Hupo than at Jangho. Our findings suggest that the oceanographic boundary resulting from the Thermal Front near Jukbyun, Gyeong-sang-bukdo may have a major effect on the distribution of migratory fish species.

• Ocean and Polar Research
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• 제36권2호
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• pp.179-187
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• 2014

Directly searching for undiscovered hydrothermal vent sites is inefficient due to the practical difficulty of comprehensively imaging vent fields. Thus, most searches for hydrothermal vent sites rely on the detection of hydrothermal plumes from water column observation. Detecting and measuring the hydrothermal plumes are the most efficient way to infer the presence and distribution of hydrothermal vents. Both the array of vertical casting and lateral towing are the most common methods to discover hydrothermal plumes. In this study, we compared results of cast and tow-yo operations along the same section of a spreading center with a distance of 20.5 km in the North Fiji Basin for mapping hydrothermal plumes. Operation of CTD tow-yo provides a detailed pattern of plumes which enable us to locate the hydrothermal vents. On the other hand, identification of hydrothermal activity can be determined effectively by CTD cast with additional analysis of geochemical tracers. Reduction in the operating time is another advantage of CTD cast operation, especially for regional-scale survey. Our results show that the combination of CTD cast and tow-yo would improve the efficiency of the hydrothermal plume survey to locate new hydrothermal vent sites.

• 한국해안·해양공학회논문집
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• 제23권3호
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• pp.205-214
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• 2011

정밀조석모의를 위한 유한요소 격자가 황해 영역에서 절점밀집도 14 K, 52 K 및 211 K 등으로 세련화되어 구축되었으며, 북서태평양을 포함하는 광역에 대해 57K의 절점을 갖는 격자체계가 구축되었다. 수치실험은 32개의 병렬프로세서에서 pADCIRC v 49.21 모형을 이용하여 수행하였다. 조석모의는 YS-G52K, YS-G211K 격자에서 KorBathy30s와 ETOPO1 수심자료를 적용하고, FES2004로부터 추출된 4 분조를 개방경계에 적용하여 모의한 결과 관측치와는 진폭에서 RMS오차 0.138 m, 위상은 RMS오차 14.80 deg로 이전 황해 연구에 비해 개선된 결과가 나타났다. 북서태평양으로 확장된 영역인 NWP-G57K 격자의 개방경계에서 8 분조를 정의하여 모의한 결과 황해 조석모의 결과와 유사한 매우 만족스러운 결과가 도출되었다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2000년도 Proceeding of CIN-KIN Joint Symposium 2000 on M.E.T. Under STCW 78/95 and SINO-KOREA MARITIME CONTACT IN MID-CENTURIES
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• pp.171-183
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• 2000

Regarding the ancient Sino-Kroea sea communication as the main theme, the propagation of the China-culture in Koran Peninsula and he influence of Chinese ancient shipbuilding technique for Korea are described in the paper. Frequent sea trade resulted in the flourishing of Chinese and Korean harbours on both side of Yellow Sea. Sino-Koran sea communication is of long-standing. Korean Peninsula (KP) is just as the large arm extended to the great sea from the North-east China. It is the Chinese mainland plate-lump's extended part in the Yellow Sea. In the ancient time, the land communication between China and Korea was often not unimpeded, the contact between China and KP, such as the South-Korea, depended on the sea communication mainly, Although the friendly relationship between China and Korea rose one after another in the various historical period, but considering from the great background of people's historical development, just as the modern people benefited fro the Europe-American culture, the people of ancient time also benefited from the China-culture. All China, KP and Japan obtained the development by propagating the ancient China-culture. The seagoing ships which carried out the Sino-Korea sea communication and trade, as the friendly envoys, finished the mission linked u and developed the Sino-Korea culture contact.

• Journal of Advanced Marine Engineering and Technology
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• 제39권10호
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• pp.1062-1067
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• 2015

Floating architecture is a type of building that is geographically located on a sea or a river. It floats under the influence of buoyancy, and does not have an engine for moving it. Korea is a peninsula surrounded by sea except on the north side, so floating architectures have been mainly focused on two points: solving the issue of small territory and providing various leisure & cultural spaces. Floating architectures are expected to save energy effectively, if they use sea water heat, which is known to be clean energy with infinite reserves. To use sea water heat as the heat source and/or heat sink, this study proposes a model in which a sea water heat exchanger is embedded in the concrete structure in the lower part of the floating architecture that is submerged under the sea. Based on the results of performance evaluations of the sea water heat exchanger using CFD (computational fluid dynamics) analysis and mock-up experiments under various conditions, it is found out that the temperature difference between the inlet and outlet of the heat exchanger is in the range of $3.06{\sim}9.57^{\circ}C$, and that the quantity of heat transfer measured is in the range of 3,812~7,180 W. The CFD evaluation results shows a difference of 5% with respect to the results of mock-up experiment.

• Journal of Species Research
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• 제13권2호
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• pp.147-158
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• 2024

Four species of the free-living nematodes were collected from marine sediments in the sublittoral zone in the East Sea, Korea and were identified, described, and illustrated. Paranticoma tricerviseta Zhang, 2005, originally described from the Bohai Sea, China, is recorded for the first time in the East Sea, Korea; only in body length and thickness (1902-2282 ㎛ compared to 2472-3300 ㎛, 50-62 ㎛ compared to 57-82 ㎛, respectively). Specimens of Parodontophora marina Zhang, 1991, from East Sea, Korea largely agrees with the original description of Zhang (1991) of nematodes from the Bohai Sea, except for differences in body length and thickness (1190-1345 ㎛ compared to 1235-1408 ㎛, 40-44 ㎛ compared to 42-72 ㎛). Terschellingia longicaudata de Man, 1907 is reported for the first time in Korea, but was previously considered a cosmopolitan species of nematodes with a widespread distribution from the North Sea, Belgium to the Exclusive Economic Zone of New Zealand; it differs from the original description in body thickness(30-38 ㎛ vs. 40-62 ㎛). Vasostoma brevispicula Huang & Wu, 2011, originally described from the subtidal muddy sediment in the Yellow Sea, China, is newly reported in Korea; apart from a few minor morphological differences, body length and thickness (2009-2425 ㎛ vs. 2119-2906 ㎛, 41-48 ㎛ vs. 37-58 ㎛). The present study on unrecorded species improves our understanding of nematode species diversity in Korean waters.

• 한국지역지리학회지
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• 제22권4호
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• pp.745-760
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• 2016

지명은 특정 물리적 공간을 나타낼 뿐만 아니라, 사회적이고 정치적인 권력 관계를 표상하고 있다. 특히 동해는 우리나라 영역을 나타내는 대표적인 지명일 뿐만 아니라, 해외에서는 일본해와 경쟁관계에 있는 지명이다. 우리나라는 국제사회에서 동해 지명 확산을 위해 다방면으로 노력하고 있으며, 점차 그 권력을 확대하고 있다. 본 연구는 프랑스를 제외한 주요 불어권 국가의 방송사 신문사의 실제 기사와 방송 내용 분석을 통해 동해 관련 표기 명칭의 현 상황을 도출하고, 프랑스에서 생산된 표기 명칭이 불어권 각 국가로 확산되는 과정과 영향력을 지명의 권력 관계 측면에서 밝히고자 하였다. 불어권 국가 중 북아프리카의 알제리, 서유럽의 벨기에, 룩셈부르크, 캐나다 퀘벡을 주요 연구 지역으로 선정하였다. 연구 결과, 북아프리카 알제리와 룩셈부르크 언론 매체는 동해 표기에 비호의적인 경향을 보인 반면, 벨기에와 퀘벡은 비교적 호의적이었다. 대체로 불어권 국가들은 프랑스의 AFP 통신으로부터 보도 자료를 제공 받고 있었는데, 동일한 기사라 하더라도 각 국가나 언론사에 따라 일본해 단독 표기를 고수하려는 매체가 있기도 하고, 경우에 따라 동해를 병기 표기하려는 의지를 보이는 곳도 있었다. 이를 통해 지명 확산과 전파의 사회적 정치적 이해 관계와 지명에서 나타난 권력관계, 대중적 지정학의 중요성을 강조하고자 하였다.

• 한국석유지질학회지
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• 제14권1호
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• pp.63-73
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• 2008

국내 대륙붕 6-2광구 내 소라 및 북소라 소분지 일대의 반사법 탄성파탐사 자료 해석을 통하여 분지 발달사에 대한 연구를 수행하였다. 소라 및 북소라 소분지는 크게는 도미 분지에 속하는 분지로 위치상으로는 일본의 후쿠에 분지와 함께 동중국해 분지의 북동쪽 경계에 위치한다. 분지 내 층의 연령을 결정하기 위해서 일본측의 탄성파해석 자료를 중심으로 시추공자료를 이용하였다. 이를 통해 4개의 층준을 해석하였으며 이 층준들은 분지 내 퇴적물을 다음과 같이 총 5개의 구간으로 나누었다; Y구간(기반암), Q구간(에오세$\sim$중기 올리고세), M 구간(중기 올리고세$\sim$초기 마이오세), L 구간(초기 마이오세$\sim$후기 마이오세), D 구간(후기 마이오세$\sim$현재). 이와 더불어 소라 및 북소라 소분지의 주 분지경계단층과 퇴적구조를 해석하였다. 주 분지경계단층의 주향, 분지 내 퇴적층의 경사방향, 분지의 분포 그리고 성장단층의 발달 유무 등의 차이를 관찰하였는데 이를 통해서 소라 소분지가 북소라 소분지 보다 먼저 발달한 것으로 추측된다.

• Animal Systematics, Evolution and Diversity
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• 제22권2호
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• pp.231-233
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• 2006

Holothuria pericax Selenka, 1867 belonging to the family Holothuriidae in the order Aspirochirotida of the subclass Aspidochirotacea is new to Korean fauna. This species was redescribed with figures based on the specimen collected at 16 m deep in north-west Munseom, Seogwipo. A key to the genus was presented. Fifteen species of holothuroids have so far been reported in Jejudo Island of Korea.