A time-dependent baroclinic model on NEC bifurcation

Fujun Wang; Dunxin Hu

doi:10.1007/s00343-012-1213-9

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A time-dependent baroclinic model on NEC bifurcation

OriginalPaper | Updated：2023-05-16

- A time-dependent baroclinic model on NEC bifurcation
- A time-dependent baroclinic model on NEC bifurcation
- 海洋湖沼学报（英文） 2012年30卷第1期页码：186-191
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Key Laboratory of Ocean Circulation and Waves Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the Major Program of the National Natural Science Foundation of China (Nos. 40890150, 40890151), and the National Basic Research Program of China (973 Program) (No.2007-CB411802)
- DOI：10.1007/s00343-012-1213-9
  中图分类号：
- 网络首发：2012-11-15，
  
  纸质出版：2012
- Accepted：
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A time-dependent baroclinic model on NEC bifurcation[J]. 海洋湖沼学报（英文）, 2012,30(1):186-191.

Wang, F., Hu, D. A time-dependent baroclinic model on NEC bifurcation., Chin. J. Ocean. Limnol. 30, 186–191 (2012). https://doi.org/10.1007/s00343-012-1213-9
A time-dependent baroclinic model on NEC bifurcation[J]. 海洋湖沼学报（英文）, 2012,30(1):186-191. DOI： 10.1007/s00343-012-1213-9.

Wang, F., Hu, D. A time-dependent baroclinic model on NEC bifurcation., Chin. J. Ocean. Limnol. 30, 186–191 (2012). https://doi.org/10.1007/s00343-012-1213-9 DOI：

摘要

Abstract

As it is well-known

the North Equatorial Current (NEC) bifurcates into the Kuroshio flowing northward and the equatorward Mindanao Current

which is well depicted by Munk’s theory in 1950 in terms of its climatology. However

Munk’s theory is unable to tell the NEC bifurcation variability with time. In the present paper

a time-dependent baroclinic model forced by wind

in which temporal and baroclinic terms are added to Munk’s equation

is proposed to examine the seasonal variability of the NEC bifurcation latitude. An analytical solution is obtained

with which the seasonal variability can be well described: NEC bifurcation reaches its northernmost position in December and its southernmost position in June with a range of about 1° in latitude

consistent with previous results with observations. The present solution will degenerate to Munk’s one in the case of steady and barotropic state.

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Keywords

references

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