Vertical feature of the tidal current in the north of the East China Sea based on a moored buoy

TIAN Zhi-guang; YANG Chun-hui; WANG Zhen-feng

doi:10.3969/j.issn.1001-909X.2014.02.005

PDF(2980 KB)

Journal of Marine Sciences ›› 2014, Vol. 32 ›› Issue (2) : 40-45. DOI: 10.3969/j.issn.1001-909X.2014.02.005

Vertical feature of the tidal current in the north of the East China Sea based on a moored buoy

TIAN Zhi-guang¹, YANG Chun-hui², WANG Zhen-feng²

Author information +

History +

Abstract

Based on the ocean current data observed by a moored buoy in the north of the East China Sea for two and a half months, the special structure characteristics of tidal current and the information of the residual current in the observed area were studied using the harmonic analysis method. The results show that it is dominated by the semidiurnal tide in this area. The type of tidal current in the depth less than 40 m belongs to irregular semidiurnal tide, while it belongs to regular semidiurnal tide in the depth more than 40 m. The tidal current is dominated by clockwise rotation in this area, and the proportion of the tidal current accounted for the ocean current increases with the depth. There are significant vertical variations in the tidal current ellipses elements. This research work will be helpful for understanding the vertical feature of tidal current in this area and the observed data can be provided to calibrate the ocean model on tidal current.

Key words

tidal current / tidal constituent / harmonic analysis / residual current

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

TIAN Zhi-guang, YANG Chun-hui, WANG Zhen-feng. Vertical feature of the tidal current in the north of the East China Sea based on a moored buoy[J]. Journal of Marine Sciences. 2014, 32(2): 40-45 https://doi.org/10.3969/j.issn.1001-909X.2014.02.005

References

[1] DING Wen-lan.Study on the characteristics of tide and tidal current in the East China Sea[C]//Institute of Oceanology,Chinese Academy of Sciences.Studia marina sinica(21). Beijing:Science Press,1983.
丁文兰.东海潮汐和潮流特征的研究[C]//中国科学院海洋研究所.海洋科学集刊(21).北京:科学出版社,1983.
[2] FANG Guo-hong.Tide and tidal current charts for the marginal seas adjacent to China[J]. Chinese Journal of Oceanology and Limnology,1986,4(1):1-16.
[3] WAN Zhen-wen,QIAO Fang-li,YUAN Ye-li.Three-dimensional numerical modelling of tidal waves in the Bohai,Yellow and East China Seas[J].Oceanologia et Limnologia Sinica,1998,29(6):611-616.
万振文,乔方利,袁业立.渤、黄、东海三维潮波运动的数值模拟[J].海洋与湖沼,1998,29(6):611-616.
[4] WANG Kai,FANG Guo-hong,FENG Shi-zuo.A 3-D numerieal simulation of M₂ tides and tidal currents in the Bohai Sea,the Huanghai Sea and the East China Sea[J]. Acta Oceanologica Sinica,1999,21(4):1-13.
王凯,方国洪,冯士笮.渤海、黄海、东海M₂潮汐潮流的三维数值模拟[J].海洋学报,1999,21(4):1-13.
[5] FANG Guo-hong, ICHIYE T. On the vertical structure of tidal currents in a homogeneous sea[J]. Geophysical Journal International,1983,73:65-82.
[6] FANG Guo-hong.Basic characteristics of the vertical structure of tidal currents——A comparison of theory and observations[J].Marine Sciences,1984(3):1-11.
方国洪.潮流垂直结构的基本特征——理论和观测的比较[J].海洋科学,1984(3):1-11.
[7] YE An-le.On the change of the direction of current ellipse axis with depth[J]. Transactions of Oceanology and Limnology,1984 (2):1-7.
叶安乐.潮流椭圆长轴方向随深度变化的特征[J].海洋湖沼通报,1984(2):1-7.
[8] YE An-le.On the variation of the moment of maximum constituent current with depth[J]. Marine Science Bulletin,1984,3(1):1-8.
叶安乐.分潮流最大流速发生时刻随深度变化的特征[J].海洋通报,1984,3(1):1-8.
[9] LI Shen-duo.On the vertical structure of tidal currents in the shallow water near the Changjiang river estuary[J].Oceanologia et Limnologia Sinica,1985,16(4):261-273.
李身铎.长江口潮流的垂直结构[J].海洋与湖沼,1985,16(4):261-273.
[10] PAWLOWICZ R,BEARDSLEY B,LENTZ S.Classical tidal harmonic analysis including error estimates in MATLAB using T-TIDE[J]. Computers and Geosciences,2002,28(8):929-937.
[11] SU Ji-lan, YUAN Ye-li. China offshore hydrology[M].Beijing: Ocean Press,2005.
苏纪兰,袁业立.中国近海水文[M].北京:海洋出版社,2005.
[12] QIAO Fang-li.China regional oceanography——Physical oceanography[M].Beijing:Ocean Press,2012.
乔方利.中国区域海洋学——物理海洋学[M].北京:海洋出版社,2012.