Vertical structure and seasonal variation of tidal and residual currents in the northern Huanghai Sea

SONG Jun; GUO Junru; QIAO Lulu; MU Lin; YAO Zhigang; LIU Yang; LI Huan; BAO Xianwen; SUN Xiaoyan; GAO Jia

doi:10.1007/s13131-011-0143-2

Vertical structure and seasonal variation of tidal and residual currents in the northern Huanghai Sea

doi: 10.1007/s13131-011-0143-2

1.
National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China;College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China
2.
Key Laboratory of Seafloor Science and Exploration Technology, Ocean University of China, Qingdao 266100, China
3.
National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China
4.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China
5.
National Marine Environmental Forecasting Center, State Oceanic Administration, Beijing 100081, China

基金项目: The Public Science and Technology Research Funds Projects of Ocean under contract Nos 200905001 and 201005019; the State Basic Research Program of China under contract No. 2005CB422303; the National Natural Science Foundation of China under contract No. 41006002.

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出版历程
- 收稿日期: 2011-01-24
- 修回日期: 2011-06-14

Vertical structure and seasonal variation of tidal and residual currents in the northern Huanghai Sea

1.
National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China;College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China
2.
Key Laboratory of Seafloor Science and Exploration Technology, Ocean University of China, Qingdao 266100, China
3.
National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China
4.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China
5.
National Marine Environmental Forecasting Center, State Oceanic Administration, Beijing 100081, China

摘要

摘要: Analysis of tidal current and sea level has been made based on the observations from the summer of 2006 to the winter of 2007, respectively. The result indicates that a two-layer structure of residual current exists in summer, with its upper layer going northwestward and the lower layer southeastward. In addition, some strong residuals exist in the neighboring depth of the pycnocline during the current period of astronomical tide. In winter, except some individual layersthe residual currents mostly direct to the northwest, from which we can see the fluctuation of abnormal sea-level and the appearance of associated current because of the changes of the wind field. The analysis of tidal ellipse indicates that the direction of the maximum semidiurnal component is clockwise from summer to winter, with an angle of 16°-18°. Moreover, in summer the semidiurnal component rotates with depth clockwise while the diurnal component counterclockwise. However, the vertical structure is almost homogeneous in winter.
- northernHuanghaiSea /
- residualcurrent /
- tidalwave /
- low-passfiltering
Abstract: Analysis of tidal current and sea level has been made based on the observations from the summer of 2006 to the winter of 2007, respectively. The result indicates that a two-layer structure of residual current exists in summer, with its upper layer going northwestward and the lower layer southeastward. In addition, some strong residuals exist in the neighboring depth of the pycnocline during the current period of astronomical tide. In winter, except some individual layersthe residual currents mostly direct to the northwest, from which we can see the fluctuation of abnormal sea-level and the appearance of associated current because of the changes of the wind field. The analysis of tidal ellipse indicates that the direction of the maximum semidiurnal component is clockwise from summer to winter, with an angle of 16°-18°. Moreover, in summer the semidiurnal component rotates with depth clockwise while the diurnal component counterclockwise. However, the vertical structure is almost homogeneous in winter.
- northern Huanghai Sea /
- residual current /
- tidal wave /
- low-pass filtering

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文章访问数: 404
HTML全文浏览量: 33
PDF下载量: 120
被引次数: 0

Vertical structure and seasonal variation of tidal and residual currents in the northern Huanghai Sea

doi: 10.1007/s13131-011-0143-2

计量

出版历程

Vertical structure and seasonal variation of tidal and residual currents in the northern Huanghai Sea

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出版历程

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