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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This research was supported by NSFC. (No. 49276267)
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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
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DOI: https://doi.org/10.1007/BF02846817