The dynamic effects of a finite depth ambient fluid on bottom eddy

Wu De-xing; Feng Shi-zuo

doi:10.1007/BF02846817

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The dynamic effects of a finite depth ambient fluid on bottom eddy

Updated：2023-05-16

- The dynamic effects of a finite depth ambient fluid on bottom eddy
- Journal of Oceanology and Limnology Vol. 13, Issue 2, Pages: 124-133(1995)
- Affiliations：
  
  Institute of Physical Oceanography
- Author bio：
- Funds：
- DOI：10.1007/BF02846817
  CLC：
- Published：1995
- Accepted：
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De-xing, W., Shi-zuo, F. The dynamic effects of a finite depth ambient fluid on bottom eddy., Chin. J. Ocean. Limnol. 13, 124–133 (1995). https://doi.org/10.1007/BF02846817
DOI：

De-xing, W., Shi-zuo, F. The dynamic effects of a finite depth ambient fluid on bottom eddy., Chin. J. Ocean. Limnol. 13, 124–133 (1995). https://doi.org/10.1007/BF02846817 DOI：

摘要

Abstract

Scaling analysis shows that ifo(ε2

β1ε

γ)∼o(δ)

frontal geostrophic dynamics governs the behavior of an isolated bottom eddy in a finite depth ambient fluid; and that the ambient flow induced by bottom eddy migration satisfies quasi-geostrophic dynamics. This two layer model includes the important processes of advection of bottom eddy due to ambient flow

baroclinic instability

and form drag introduced by Rossby waves. The numerical results show that the three processes enhance the instability and alter the migration speed of the bottom eddy

and that the form drag induces a significant meridional drift of the eddy.

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references

Arakawa, A., 1966. Computational design for long term integration of the equations of fluid motion: Two-dimentional incompressible flow, Part 1.J. Comput. Phys. 1: 119–143.

Flierl, G. R., 1984. Rossby wave radiation from a strongly nonlinear warm eddy.J. Phys. Oceanogr. 14: 47–58.

Mory, M., Stern, M. E. and Griffiths, R. W. et al., 1987. Coherent baroclinic eddies on a sloping bottom.J. Fluid Mech. 183: 45–62.

Nof, D., 1983. The translation of isolated cold eddies on a sloping bottom.Deep Sea Res. 30: 171–182.

Whitehead, J. A., Stern, M. E., Flierl, G. R., et al., 1990. Experimental observations of baroclinic eddies on a sloping bottom.J. Geophys. Res. 95(C6): 9585–9610.

Wu Dexing and Feng Shizuo, 1993. On the behaviors of ocean bottom eddy.Chin. J. Oceanol. Limnol. 12 (4): 343–350.

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