Chinese Journal of Oceanology and Limnology

, Volume 14, Issue 2, pp 128–134 | Cite as

Ther mohaline finestructure and its relation with the water masses and currents system in the Northern East China Sea

  • Bao Xian-wen
  • Fang Xin-hua
  • Liu Xue-gang


Eighty-one CTD profiles gathered in springtime were used for northern East China Sea thermohaline finestructure studies indicating that the finestructure properties varied with region and depth, as shown in finestructure spectra, distribution of Cox numbers, etc., Some results closely related to distribution of water masses and currents. Analysis of two typical profiles revealed differences in autospectra of temperature, salinity and potential density gradients, probability distribution of temperature finestructure gradient, Cox numbers, etc. The probability density function of vertical temperature gradients, which varied with sample interval, is given. The variances of temperature finestructure gradient are used to estimate the lateral diffusivity {ie128-1} and lateral temperature flux, which were 10.3 (m2/s) and 5.5×10−4 (°C m/s). respectively.

Key words

finestructure thermohaline Kuroshio East China Sea spectrum 


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  1. Bao Xianwen, Fang Xinhua, 1994. A review of ocean finestructure.Oceanol. et Limnol. Sinica 25(5): 552–559. (in Chinese with English abstract)Google Scholar
  2. Fang Xinhua, Bao Xianwen, Zhang Yulin et al., 1994. Internal waves and fine structure in the Southwestern area of the South China Sea.Oceanol. et Limnol. Sinica 25(1): 1–8. (in Chinese with English abstract)Google Scholar
  3. Fang Xinhua, You Yuzhu and Zhang Yulin, 1988. A preliminary study using CTD data on characteristics of vertical temperature salinity and density finestucture in the East China Sea II.Acta Oceanol. Sin. 10: 129–135. (in Chinese)Google Scholar
  4. Fang Xinhua, Zhang Yulin, Wang Jingming, 1992. CTD data quality control. Qingdao Ocean University Press, 200 pp. (in Chinese).Google Scholar
  5. Desaubies, Y. J. F., Gregg, M. C., 1981. Reversible and irreversible finestructure.J. Phys. Oceanogr. 11: 541–556.CrossRefGoogle Scholar
  6. Garrett, C., Munk W. H., 1971. Internal wave spectra in the presence of fine structure.J. Phys. Oceangr. 1: 196–202.CrossRefGoogle Scholar
  7. Georgi, D. T., 1981. On the relationship between the larger-scale property variations and finestructure in the circum polar deep water.J. Geophys. Res. 86: 6556–6565.CrossRefGoogle Scholar
  8. Gregg, M. C., 1977. Variations in the intensity of small-scale mixing in the main thermocline.J. Phys. Oceanogr. 7: 436–454.CrossRefGoogle Scholar
  9. Hayes, S. P., 1975. Measurements of vertical mixing of water masses.J. Phys. Oceanogr. Res. 7: 626–629.Google Scholar
  10. Joyce, T. M., Zenk, W., Toole, J. M., 1978. The anatomy of the Antarctic Pole Front in the Drake Passage.Geophys. Res. 83: 6093–6113.CrossRefGoogle Scholar
  11. Wan Bangjun, Tang Yuxiang, Gou Binghuo, 1992. A preliminary study of the characteristics of oceanic front in the Northeastern East China Sea. Selections of study on the Kuroshio, IV, Ocean, Press, Beijing pp. 12–22 (in Chinese).Google Scholar
  12. Zhang Yifang, Tang Yuxiang, Huang Weimin, et al., 1994. Short-period variation of the Kuroshio front in the northeastern East China Sea and its effects on the sea conditions on the two sides of front. Selections of study on the Kuroshio, III, Ocean Press, Beijing pp. 26–35. (in Chinese)Google Scholar
  13. Pinkel, R., Anderson, S., 1991. On the statistics of fine scale strain in the thermocline. Dynamics of oceanic internal gravity wave, ed by Miller, P. and Henderson, D. SOET Special Publication, Honolulu, pp. 89–107.Google Scholar

Copyright information

© Science Press 1996

Authors and Affiliations

  • Bao Xian-wen
    • 1
  • Fang Xin-hua
    • 1
  • Liu Xue-gang
    • 2
  1. 1.Physical Oceanography InstituteOcean University of QingdaoQingdao
  2. 2.North China Sea AdministrationSOAQingdao

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