Advertisement

Chinese Journal of Oceanology and Limnology

, Volume 1, Issue 3, pp 237–247 | Cite as

Mesoscale eddy movement in the northern East China Sea

  • Mao Hanli
  • Hu Dunxin
  • Zhao Baoren
  • Ding Zhongxin
Article

Summary

1.On the basis of the analysis of hydrographical and geological data it is concluded that the cyclonic eddy in the northern East China Sea existed every year and season. However, it was deduced from its monthly changes that it did not exist all the time. li]2.|Conspicuous internannual, even monthly changes of the eddy in summer were found. The main cause for it was the strength and position of HWC and HCC.

As for its seasonal change, reliable analysis was hard to make. However, from Fig. 2 and taking into account the change of the strength of HWC and HCC it seems that the eddy was strongest with southmost centre in winter and weaker (compared with winter) with north-most centre in summer. li]3.|More often than not, the eddy occurred in intermediate layer. The distructive effect of the wind might be the cause for the eddy's not reaching the surface in spring, fall and winter, and the Changjiang Diluted Water might have played the same role in summer. li]4.|The average position of the eddy was, upon the whole, coincident with the mud's—the multiyear existence of the eddy was determinant for the mud formation. li]5.|The disposition of HWC, HCC and NRK was the main dynamical factor for the eddy formation. Among others, HWC and HCC were decisive and the occurrence of bottom cold water in summer may intensify the eddy as a thermodynamical factor.

Keywords

MESOSCALE Eddy Cyclonic Eddy Eddy Formation Cold Eddy Thermohaline Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Guo Binghuo, 1981. The temperature and salinity structure and the circulation in the Yellow Sea. Proceedings of the Japan-China Ocean Study Symposium on “Physical Oceanography and Marine Engineering in the East China Sea”, pp. 174–197.Google Scholar
  2. [2]
    Hu Dunxin et al., 1980. A preliminary investigation of cyclonic eddy in the Northern East China Sea in Summer.Kexue Tongbao 25 (1–2): 57–60. Detailed inStudia Marina Sinica 21: 87–99.Google Scholar
  3. [3]
    Inoue, N., 1975. Bottom current on the continental shelf of the East China Sea.Marine Sciences 7 (1): 12–18. (in Japanese)Google Scholar
  4. [4]
    Mao Hanli, Hu Dunxin, Zhao Baoren and Ding Zhongxin, 1983. A cyclonic eddy in the northern East China Sea. Proceedings of International Symposium on Sedimentation on the Continental Shelf, with Special Reference to the East China Sea. China Ocean Press, Beijing, Vol. 1: 306–313.Google Scholar
  5. [5]
    Pu Yongxiu, 1981. The upwelling and eddy phenomena in the north part of the East China Sea. Proceedings of the Japan-China Ocean Study Symposium on “Physical Oceanography and Marine Engineering in the East China Sea”, pp. 79–94.Google Scholar
  6. [6]
    Qin Yunshan and Zheng Tiemin, 1982. A study of distribution pattern of sediments on the continental shelf of the East China Sea. In “the Geology of the Yellow Sea and the East China Sea” by Dept. of Mar. Geology, Institute of Oceanology, Academia Sinica, pp. 39–51. Science Press. (in Chinese)Google Scholar
  7. [7]
    Xiong Qingcheng and Zhao Baoren, 1983. Observation and analysis of salinity and current in the area of cold eddy in the northern East China Sea in July of 1980. To appear inMarine Science. (in Chinese)Google Scholar
  8. [8]
    Yasuhiro, S. et al., 1981. A study of interaction between the Kuroshio and the continental coastal waters in the East China Sea. Proceedings of the Japan-China Ocean Study Symposium on “Physical Oceanography and Marine Engineering in the East China Sea”. Special Report of Institute of Oceanic Research, Tokai University, pp. 42–66.Google Scholar

Copyright information

© Science Press 1983

Authors and Affiliations

  • Mao Hanli
    • 1
  • Hu Dunxin
    • 1
  • Zhao Baoren
    • 1
  • Ding Zhongxin
    • 1
  1. 1.Institute of OceanologyAcademia SinicaQingdao

Personalised recommendations