• Title/Summary/Keyword: Eastern Sea

검색결과 736건 처리시간 0.026초

황해 남동해역에서의 열수지에 관한 연구 (A Study on the Heat Budget in the South Eastern Area of the Yellow Sea)

  • 이현철;안희수
    • 한국해양학회지
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    • 제22권4호
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    • pp.217-227
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    • 1987
  • 황해동남해역 (33$^{\circ}$N-36$^{\circ}$N, 120$^{\circ}$E)의 해면 열수지를 기상자료와 해양자료 를 이용하여 계산하였다. 현열, 증발열, 장파복사열을 모두 년변화를 하고 겨울철에 는 제주해협을 따라 강한 온도 전선을 나타내지만 여름철에는 동쪽 연안해역을 향해 감소하는 경향을 가진다. 전해역은 교환열량의 년변화 및 분포의 특징에 따라 중앙해역, 연안해역, 남부해역으로 나뉘어진다. 남부해역의 총교환열량의 년변화 진 폭은 중앙해역, 연안해역에 비하여 매우 크다. 대체적으로 조사해역은 증발열과 현열에 의해 가열된다고 볼 수 있다.

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한국남해동부해역에서 수온이 멸치와 김 생산량에 미치는 영향 (Effect of Temperature on Catches of Anchovy and Laver In Eastern part of South Sea of Korea)

  • 김현주;권철휘
    • 해양환경안전학회:학술대회논문집
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    • 해양환경안전학회 2003년도 추계학술발표회
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    • pp.175-180
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    • 2003
  • 수온과 멸치와 김 생산량의 관계를 규명하기 위해, $1980\~2002$년 한국 남해 동부해역에서 생산량과 해양관측자료를 분석하였다. 한국 남해 동부해역에서 년간 멸치와 김 생산량은 들 다 해마다 변동은 있으나 전반적으로 점차 증가하는 추세를 보였다. 멸치와 김 생산량은 해양환경 특히, 수온과 밀접한 관계가 있는 것으로 나타났다. 즉, 표층은 평년보다 높고, $0\~20m$에서의 수온은 평년보다 낮았을 때 특히 저층에 약 $15^{\circ}C$ 이하의 저온수가 존재했을 때, 들 다 생산량이 저조하였다.

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Trend of Sea Level Change Along the Coast of Korean Peninsula

  • An Byoung Woong;Kang Hyo Jin
    • 한국수산과학회지
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    • 제32권6호
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    • pp.803-808
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    • 1999
  • Trend of sea level change has been analysed by using the tidal data gathered at the 12 tide stations along the coast of Korean peninsula. Analysis and prediction of the sea level change were performed by Principal Component Analysis (PCA). For the period of 20 years from 1976 to 1995, the trend generally shows a rising pattern such as 0.22 cm/yr, 0.29 cm/yr, and 0.59 cm/yr along the eastern, southern, and western coast of Korea, respectively. On the average the sea level around the Korean peninsula seems to be rising at a rate of 0.37 cm/yr. Adopting the average rate to the sea level prediction model proposed by EPA (Titus and Narrayanan, 1995), the sea level may be approximately 50$\~$60 cm higher than the present sea level by the end of the next century.

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근골격계 질환의 한·양방협진치료 효과 연구에 대한 체계적 문헌 고찰 (A Systematic Review of the Effectiveness of Eastern-Western Integrative Medicine for Musculoskeletal Disorders)

  • 이승진;신병철;송근성;황의형;윤영주;조현우
    • 한방재활의학과학회지
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    • 제21권4호
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    • pp.87-96
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    • 2011
  • Objectives: This study aims to systematically evaluate the effectiveness of Eastern-Western integrative medicine for musculoskeletal disorders compared with Eastern or Western Medicine. Methods: Systematic sea-mes of 9 major Korean databases were conducted for articles published up to July 2011. Searching keyword was "Integrative Medicine". Prospective studies dealt with musculoskeletal disorders by Eastern-Western integrative medicine were included. Quality assessment of included studies was evaluated by Cochrane risk of bias tool. Results: 470 studies in total were seamed, Amalg them 7 studies met our inclusion criteria(3 randomized controlled clinical trials, 2 non-randomized controlled trials and 2 uncontrolled clinical trials). Included studies dealt with lumbar pan(3), shoulder pain(2), pain after traffic injury(1), spinal compression fracture(1). Eastern-Western integrative medicine showed better or equal effect for the treatment of various muscloskeletal disorders compared with Eastern or Western medicine alone. Conclusions: There is very weak evidence for the effectiveness of Eastern-Western integrative medicine for musculoskeletal disorders compared with Eastern or Western medicine alone. Well designed randomized controlled trials with rigorous methodology are needed to evaluate the effectiveness of Eastern-Western integrative medicine objectively in the future.

2023년 태풍 카눈 통과에 따른 한국 남해 통영해역 수온 변동 연구 (A Study on Sea Surface Temperature Changes in South Sea (Tongyeong coast), South Korea, Following the Passage of Typhoon KHANUN in 2023)

  • 황재동;안지숙;김주연;주희태;민병화;남기호;이시우
    • 해양환경안전학회지
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    • 제30권1호
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    • pp.13-19
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    • 2024
  • 한국 남해 동부 해역인 통영해역에 설치된 연안 수온 분석 결과, 태풍이 남해안에 상륙하기 전에 수온이 급격하게 상승한 것으로 나타났다. 수온 상승은 표층(5m)은 물론 저층(15m)까지 같이 발생하였다. NOAA 위성에서 관측한 표면수온자료 분석 결과, 태풍이 상륙하기 전 한국 남해 동부 해역의 동쪽 해역에 30℃의 수온을 가지는 해수가 존재하였다. 한국 남동해역은 대마난류에 의해 서쪽에서 동쪽으로 해류가 우세한 지역이나 위성 자료 분석 결과, 30℃의 해수는 동쪽에서 서쪽으로 이동한 것으로 나타나 태풍 상륙 전에 태풍에 의한 에크만 수송의 영향을 받은 것으로 나타났다. 또한 남해 동부 해역은 한국 동해 해역과 달리 수심이 깊지 않기 때문에 바람에 의한 연직 혼합으로 인해 전 수층의 수온이 일정하게 나타날 수 있다. 수층별 수온 상승이 같은 날에 발생하였기 때문에 저층 수온 상승은 연직 혼합에 의한 결과라 볼 수 있다. 따라서 한국 남동해역은 태풍의 접근 방향과 고수온의 형성 위치에 따라 에크만 수송에 의해 수온이 급상승할 수 있는 해역임을 알 수 있다.

동계 한반도 동·서 연안역 기온에 미치는 수온의 영향 (Influence of Water Temperature on Air Temperature around Eastern and Western Coastal Areas of the Korean Peninsula during Winter)

  • 홍철훈
    • 한국수산과학회지
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    • 제52권1호
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    • pp.92-96
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    • 2019
  • The influence of water temperature (WT) on air temperature (AT) in the eastern and western coastal regions of the Korean peninsula in the winter was investigated using historical data from the Korean Meteorological Agency (KMA) and the National Institute of Fisheries Science (NIFS), focusing on the relationship between AT and WT. The data analysis shows that, during winter, the AT is generally higher by +1.9 to $+2.7^{\circ}C$ at Kangreung ($37.2^{\circ}N$) in the eastern region than at Inchon ($37.4^{\circ}N$) in the western region, i.e., the AT in the eastern region of the Korean Peninsula tends to be higher overall than that in the western region when similar latitudes are compared. On the other hand, in the winters of 1977-2006, the WT at Sokcho was higher by $+0.8^{\circ}C$ (January) to $+2.3^{\circ}C$ (March) than that at Sochungdo, directly resulting in increased AT ($+1.22^{\circ}C$) at Sokcho. This study suggests that higher AT in the eastern region during winter is caused by the influence of water flow, such as the East Korean Warm Current in the East/Japan Sea.

Interannual variability of spring bloom in the Gulf of Maine observed by SeaWiFS

  • Son, Seung-Hyun;Thomas, Andrew
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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    • pp.328-331
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    • 2006
  • Eight years of SeaWiFS data quantify variability in the time/space patterns of spring bloom development in the Gulf of Maine (GOM). Maximum and earliest spring bloom are usually observed over Georges Bank, later on the deep basins from the west to the east GOM, and latest development along the eastern Maine coast in cold, tidally mixed water. Pronounced interannual variability of spring bloom timing, spatial position, and magnitude are shown in the GOM. Strongest negative anomalies are present in April 1998 and 2001 over Georges Bank and the eastern GOM, and in January to April of 2005 over the most of GOM. Positive anomalies are strong in April 2001, 2003 and 2004 in varying locations as well as in February and March 1999. It is suggested that interannaul variability in spring phytoplankton bloom concentrations is strongly associated with changes in water mass and stratification which might be influenced by basin-scale forcing due to large climate change.

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Observations on seaweed attachment to bivalve shells in Peter the Great Bay (East Sea) and their taphonomic implications

  • Lutaenko, Konstantin A.;Levenets, Irina R.
    • 한국패류학회지
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    • 제31권3호
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    • pp.221-232
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    • 2015
  • Observations in beach, intertidal and upper subtidal environments in Peter the Great Bay (north-western East Sea) have shown that attached algae were found on empty shells of 13 species of epifaunal and infaunal bivalve mollusks. Thirteen algae species were identified on empty dislodged shells but more than 50 species are known to be epibiotic on living bivalves. The dislodgement of shells with attached algae takes place in semi-enclosed, low-energy areas, as well as those which are open and affected by strong wave action, indicating the large scale of this phenomenon. The significance of seaweed transportation of living mollusks and their empty shells in the coastal zone, involving both taphonomic and ecological processes, is stressed. Algae appear to be a taphonomic agent and play a similar role as compared to birds or hermit crabs, but they act passively and contribute to environmental mixing in death assemblages in coastal environments.

한국 동해산 도루묵의 이석횡단절단법에 의한 연령사정 및 성장 (Age Determination and Growth Using the Transverse Section Method of Otoliths Sandfish, Arctoscopus japonicus, in the Eastern Sea of Korea)

  • 이해원;강용주
    • Ocean and Polar Research
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    • 제28권3호
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    • pp.237-243
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    • 2006
  • The ages of sandfish, Arctoscopus japoninis sampled from the eastern sea of Korea, were determined by the transverse section method of otoliths. Ages were assigned to every individual according to the number of opaque zones, and then fitted to the von Bertalanffy growth equation. Estimated equations were $L_t=25.90(1-e^{-0.2976(t+0.4447)})$ for females and $L_t=21.38(1-e^{-0.2917(t+1.2087)})$ for males, where t is age (year) and $L_t$, is body length (mm) at age t. These two equations were significantly different and the body length of females calculated from the equation was larger than that of males except at 1 year old.

한국 서해의 동물성 플랑크톤량의 경년 변화에 관한 연구 (A STUDY ON THE SECULAR VARIATION OF ZOOPLANKTON BIOMASS IN THE EASTERN AREA OF THE YELLOW SEA)

  • 김용술
    • 한국수산과학회지
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    • 제4권3_4호
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    • pp.99-102
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    • 1971
  • 경인만 이남의 황해 한국측 해역에서 동물성 플랑크톤 현존량의 경년 변동은 $1963\~1969$년, 7년 사이에 1965년 10월을 극소점으로 하는 포물선적 변동을 나타내었으나, 실제적인 면에서 앞으로도 계속하여 무한히 증가한다고는 볼 수 없다. 해수 중 용존 인산염으로서 이 변동의 원인을 충분히 설명하기는 아직 이르다.

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