Journal of Ocean University of China

, Volume 10, Issue 4, pp 305–313

Numerical study on the bifurcation of the North Equatorial Current

Authors

  • Yulong Liu
    • Department of Marine MeteorologyOcean University of China
    • National Marine Data and Information Service
    • Department of Marine MeteorologyOcean University of China
  • Jun Song
    • National Marine Data and Information Service
  • Xiande Zhu
    • Department of Marine MeteorologyOcean University of China
    • People’s Liberation Army 91422
  • Xiaoqing Gong
    • Department of Marine MeteorologyOcean University of China
  • Fang Wu
    • Department of Marine MeteorologyOcean University of China
Article

DOI: 10.1007/s11802-011-1840-3

Cite this article as:
Liu, Y., Wang, Q., Song, J. et al. J. Ocean Univ. China (2011) 10: 305. doi:10.1007/s11802-011-1840-3
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Abstract

A 1.5-layer reduced-gravity model forced by wind stress is used to study the bifurcations of the North Equatorial Current (NEC). The authors found that after removing the Ekman drift, the modelled circulations can serve well as a proxy of the SODA circulations on the σθ=25.0 kg m−3 potential density surface based on available long-term reanalysis wind stress data. The modelled results show that the location of the western boundary bifurcation of the NEC depends on both zonal averaged and local zero wind stress curl latitude. The effects of the anomalous wind stress curl added in different areas are also investigated and it is found that they can change the strength of the Mindanao Eddy (ME), and then influence the interior pathway.

Keyword

North Equatorial Currentthe western boundaryinterior pathwaybifurcationwind stress curl1&1/2 Model

Copyright information

© Science Press, Ocean University of China and Springer-Verlag Berlin Heidelberg 2011