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.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
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.
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.
Inoue, N., 1975. Bottom current on the continental shelf of the East China Sea.Marine Sciences 7 (1): 12–18. (in Japanese)
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.
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.
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)
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)
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.
Author information
Authors and Affiliations
Additional information
Contribution No. 934 from the Institute of Oceanology, Academia Sinica. This paper was partially presented at the Symposium on Sedimentation on the Continental Shelf, held in April 1983 in Hangzhou, PRC.
Rights and permissions
About this article
Cite this article
Hanli, M., Dunxin, H., Baoren, Z. et al. Mesoscale eddy movement in the northern East China Sea. Chin. J. Ocean. Limnol. 1, 237–247 (1983). https://doi.org/10.1007/BF02849604
Issue Date:
DOI: https://doi.org/10.1007/BF02849604