Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model

Wang Fan; Hu Dun-xin

doi:10.1007/BF02842694

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Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model

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- Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model
- Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model
- 海洋湖沼学报（英文） 1999年17卷第1期页码：1-9
- Affiliations：
  
  Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Research supported by the Postdoctoral Research Foundation and the NSFC (No. 49176255 and 49706066). Contribution No. 3405 from the Institute of Oceanology, Chinese Academy of Sciences.
- DOI：10.1007/BF02842694
  中图分类号：
- 纸质出版：1999
- Accepted：
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Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model[J]. 海洋湖沼学报（英文）, 1999,17(1):1-9.

Fan, W., Dun-xin, H. Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model., Chin. J. Ocean. Limnol. 17, 1–9 (1999). https://doi.org/10.1007/BF02842694
Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model[J]. 海洋湖沼学报（英文）, 1999,17(1):1-9. DOI： 10.1007/BF02842694.

Fan, W., Dun-xin, H. Preliminary study on the formation mechanism of counter western boundary undercurrents below the thermocline—A conceptual model., Chin. J. Ocean. Limnol. 17, 1–9 (1999). https://doi.org/10.1007/BF02842694 DOI：

摘要

Abstract

Based on a simple conceptual model of stratified ocean

the criterion of the geostrophic velocity inversion in and below the thermocline was derived ash′·ν′<0 and {ie1-1}

meaning that the slopes of the thermocline (h′) and the sea {ie1-2} must be opposite to each other

and thath′ must be strong enough to satisfy the latter inequality. The criterion was applied to discuss the features of the western boundary undercurrents

the counter undercurrents of the western boundary currents below the thermocline

and to discuss the dynamics of their formation finally resulting from the combination of the basin-scale circulation and local geostrophic balance. The formation mechanism

multicore structure

and transport variations of the Mindanao Undercurrent and those of other undercurrents

such as the North Equatorial Undercurrent and the Kuroshio undercurrent

can be satisfactorily explained by the above results.

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Keywords

references

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Hu, D., Cui, M., 1989. The western boundary current in the far-western Pacific Ocean.In: Proceedings of the Western Pacific International Meeting and Workshop on TOGA-COARE (Ed. J. Picaut, R. Lukas and T. Delcroix), ORSTOM, Noumea, New Caledonia, 24–30 May, 1989, p. 123–134.

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