Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Fluctuation Characteristic of Temperature and Salinity in Coastal Waters around Jeju Island

제주도 연안 천해역의 수온 · 염분 변동 특성

  • KO Jun-Cheol (Department of Fishery, Cheju National University) ;
  • KIM Jun-Teck (Department of Fishery, Cheju National University) ;
  • KIM Sang-Hyun (Department of Fishery, Cheju National University) ;
  • RHO Hong-Kil (Department of Fishery, Cheju National University)
  • Published : 2003.06.01
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Abstract

We conducted a time-series analysis of temperature and salinity of sea water around Jeju Island, Korea. Monthly mean temperature and salinity was influenced by precipitation and weather conditions on Jeju as well as by oceanographic conditions of the open sea such as the Tsushima Warm Current and sea water in coastal areas. Salinity of Jeju coastal waters was the highest in April, and it was always over 34.00 psu with tiny fluctuation between December and June. Due to the effects of the Tsushima Warm Current, Jeju coastal waters maintained high salinity and stability. Low salinity and its large fluctuations during summer were closely associated with the China Coastal Water and precipitation in Jeju. The place of the lowest water temperature was the northeast coasts of Jeju (Gimneong, Hado, Jongdalri). In winter, as warmer water of the Tsushima Warm Current appeared in western area of Jeju dwindled flowing along the northern coasts of Jeju area and becoming cool, the lowest water temperature often appeared locally in Gimnyeong and its vicinitly in summer. The Tsushima Warm Current flows into the east entrance of Jeju Strait, but its influence is weak because of geometry and strong vertical mixing due to fast tidal currents.

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References

  1. Byeon, C.I. 1981. Study on the ocean ographic condition characteristic of the coastal water in Jeju Island around Seong San. MS Thesis, Cheju Nat'l. Univ., 27 pp. (in Korean)
  2. Choi, C.M. 1989. A study on the origin of coastal waters in the southwestern seas of Korea. MS Thesis, Cheju Nat'l. Univ., 44 pp. (in Korean)
  3. Kim, K. and S.H. Lee. 1982. Vertically homogeneous waters along the west coast of Cheju Island. J. Oceanol. Soc. Korea, 17(2), 59-68. (in Korea)
  4. Kim, S.H. and H.K. Rho. 1998. A study on the assembling mechanism of the hairtail, Trichiurus Icpturus, at the fishing ground of the Cheju Strait. Bull. Kor. Soc. Fish. Tech., 34(2), 117-134. (in Korean)
  5. Kim, I.O. and H.K Rho. 1994. A study on China coastal water appeared in the neighbouring seas of Cheju Island. J. Kor. Fish. Soc., 27(5), 515-528. (in Korean)
  6. Kim, S.H. and H.K. Rho. 1997. A study on the residual current in the Cheju Strait. J. Kor. Fish. Soc., 30(5), 759-770. (in Korean)
  7. Kim, J.T. 1996. Environmental characteristic and catch fluctuation of set net ground in the coastal water of Hanlim in Cheju Island. MS Thesis, Cheju Nat'I. Univ., 51 pp. (in Korean)
  8. Kim. S.H. 1995. Studies on the assembling mechanism of the hairtail, Trichiurus Iepturus, at the fishing ground of the Cheju Strait. MS Thesis, Cheju Nat'l. Univ., 26 pp. (in Korean)
  9. Rho, H.K. 1985. Studies on marine environmental of fishing ground in the waters around Jeju Island. Ph.D Thesis, Tokyo University, 215 pp. (in Japanese)
  10. Rho, H.K. and K.H. Chung. 1976. Studies on the fluctuation of temperature and salinity in the cost of Jeju Island (I) The characteristics of general fluctuation. Cheju Nat'l. Univ. J., 8, 115-122. (in Korean)
  11. Rho, H.K. and K.H. Chung. 1997. Studies on the fluctuation of temperature and salinity in the cost of Jeju Island (II) The characteristics of general fluctuation. Cheju Nat'l. Univ. J., 9, 131-136. (in Korean)
  12. Rho, H.K. and T. Hirano. 1983. Tongue-like warm water appeared in the east entrance of the Jeju Strai. Bull. Korean Fish Soc., 16(4), 299-304. (in Korean)
  13. Youn, Y.H. 1986. The identification of wather characteristics of the Yellow Sea bottom cold water and the evidences of its southwards extension. MS Thesis, Cheju Nat'I. Univ., 55 pp. (in Korean)
  14. Youn, J.S., S.W. Park, S.S. Kang and Y.J. Hyun. 1998. Regional water quantity variation of spring water in Cheju Island. Cheju Nat'l. Univ. Environ. J. 6, 85-104. (in Korean)

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