Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Oceanographic Conditions in the Neighboring Seas of Cheju Island and the Appearance of Low Salinity Surface Water in May 2000

2000년 5월 제주도 주변해역의 해황 및 표층 저염분수의 출현

  • KIM Sang Hyun (Marine and Environmental Research institute, Cheju National University) ;
  • RHO Hong Kil (College of Ocean Science, Cheju National University)
  • 김상현 (제주대학교 해양과환경연구소) ;
  • 노홍길 (제주대학교 해양과학대학)
  • Published : 2004.04.01
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Abstract

In the adjacent seas of Cheju Island, the oceanographic conditions show low salinity surface waters starting in May. This water flows from the southeast part of the China Coastal Water, which flows southeastward along the Great Yangtze Sand Bank until April, with the help of southeasterly winds and flows from the adjacent sea off Cheju Island. In May, the Tsushima Warm Current and the low salinity surface water fluctuate in short and long-term periods as influenced by Yellow Sea Cold Water, which flows to the bottom layer at the western entrance of Cheju Strait. Temperature and salinity fronts in the northeastern sea area of U Island are formed in the boundary area between the Tsushima Warm Current, which expands towards Cheju Island from the southeastern sea area of Cheju Island and Hows out from the eastern entrance of the strait. Seasonally, additional oceanographic conditions, such as coastal counter-currents, which flow southward, appears within limited areas in the adjacent eastern and western seas of Cheju Island.

Keywords

References

  1. Chang, P.H. and A. Isobe. A numerical study on the Changjiang diluted water in the Yellow and East China Seas. J. Geophys Res., 108 (C9), 3299, doi:10.1029/ 2002JC001749, 2003
  2. Cho Y.K. 1988. A study on the bottom water and transport in the South Sea, Korea. M.S. Thesis, Seoul Natl. Univ., pp. 55. (in Korean)
  3. Huyn K.H. and I.C. Pang. 1998. Abnormally low salinity waters around Cheju Island in summer. Bull. Mar. Res. Inst. Cheju Natl. Univ., 22, 69-78. (in Korean)
  4. 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)
  5. Kim S.H. 1987. A study on the current in the Cheju Strait. M.S. Thesis, Cheju Natl. Univ., pp. 61. (in Korean)
  6. Kim S.H. 1995. Studies on the assembling mechanism of the Hairtail, Trichiurus lepturus, at the fishing grounds of the Cheju Strait. Ph.D. Thesis, Cheju Natl. Univ., pp. 168. (in Korean)
  7. Kim S.H. and H.K. Rho. 1997a. A study on the residual current in the Cheju Strait. J. Kor. Fish. Soc., 30(5), 759-770. (in Korean)
  8. Kim S.H. and H.K. Rho. 1997b. Characteristics of hydro-graphic conditions of the Cheju Strait in winter. Bull. Mar. Res. Inst. Cheju Natl. Univ., 21, 65-73. (in Korean)
  9. Kim S.H., Y.D. Lee and H.K. Rho. 1998. The study on the fisheries biological features of Hairtail, Trichiurus lepturus from the Cheju Strait. J. Kor. Fish. Soc., 31(1), 17-25. (in Korean)
  10. Kim S.H. and H.K. Rho. 1998. A study on the assembling mechanism of the Hairtail, Trichiurus lepturus, at the fishing grounds of the Cheju Strait. Bull. Kor. Soc. Fish. Technol., 34(2), 117-134. (in Korean)
  11. Kim S.H. and H.K. Rho. 2002. The fluctuation of fishing grounds of Hairtail, Trichiurus lepturus, in the Cheju Strait by the distribution of feeding biomass. Bull. Kor. Soc. Fish. Technol., 38(1), 1-10. (in Korean) https://doi.org/10.3796/KSFT.2002.38.1.001
  12. Kondo, M. 1985. Oceanographic investigation of fishing grounds in the East China Sea and the Yellow Sea -I. Characteristics of the mean temperature and salinity distributions measured at 50m and near the bottom. Bull. Seikai Reg. Fish. Res. Lab., 62, 19-66
  13. Matsuno, T., M. Shimizu, A. Isobe, J. Ishijaka, I.C. Pang, S.H. Kim and J. Zhu. 2003. Behavior of Changjiang diluted water observed by drifting buoys with salinity sensor. Int. Sym. for PEACE, Seoul Korea, pp. 14-16
  14. Rho H.K. and T. Hirano. 1983. Tongue-like warm water appeared in the east entrance of the Jeju Strait. Bull. Kor. Fish. Soc., 16(4), 299-304. (in Korean)
  15. Rho H.K. and K. Kim. 1983. Variations of sea surface temperature between Jeju and Mogpo and between Jeju and Wando. J. Oceanol. Soc. Korea, 18(1), 64-72.(in Korean)
  16. Rho H.K. 1985. Studies on marine environment of fishing grounds in the waters around Jeju Island. Ph.D. Thesis, Tokyo Univ., pp. 215. (in Japanese)
  17. Yang Y.J., S.H. Kim and H.K. Rho. 1998. A study on the temperature fronts observed in the south-west sea of Korea and northern area of the East China Sea. J. Kor. Fish. Soc., 31(5), 695-706. (in Korean)

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