On the behaviors of ocean bottom eddy

Wu De-xing; Feng Shi-zuo

doi:10.1007/BF02850495

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On the behaviors of ocean bottom eddy

Updated：2023-05-16

- On the behaviors of ocean bottom eddy
- Journal of Oceanology and Limnology Vol. 12, Issue 4, Pages: 343-350(1994)
- Affiliations：
  
  Institute of Physical Oceanography
- Author bio：
- Funds：
- DOI：10.1007/BF02850495
  CLC：
- Published：1994
- Accepted：
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De-xing, W., Shi-zuo, F. On the behaviors of ocean bottom eddy., Chin. J. Ocean. Limnol. 12, 343–350 (1994). https://doi.org/10.1007/BF02850495
DOI：

De-xing, W., Shi-zuo, F. On the behaviors of ocean bottom eddy., Chin. J. Ocean. Limnol. 12, 343–350 (1994). https://doi.org/10.1007/BF02850495 DOI：

摘要

Abstract

On the basis of scaling analysis

this paper presents a frontal geostrophic dynamic system which can be used to describe the dynamics of an isolated bottom eddy and shows that five possible dynamic subregimes are included in the system. A particle-in-cell method is used to investigate the behavior of the eddy in the two dynamic subregimes

with 1) nonlinear effect (ε) relevant to the sloping bottom-induced beta effect (β 1) and 2) seamount-induced beta effect (β 2) dominant. In the dynamic subregime ofβ 1∼ε∼10-2 andβ 2=0

the eddy can keep as a whole for a long time and migrates for a long distance. In the dynamic subregime where the seamount-induced beta effect (β 1∼10-1) is dominant

the seamount traps the water particles

causing the eddy to break up into a discrete set of eddies moving around the seamount.

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references

Armi L. and E. D'Asaro, 1980. Flow structures of the benthic ocean.J. Geophys. Res. 85: 469–484.

Gordon, A. L. and Greengrove, C. L., 1986. Abyssal eddy in the Southwest Atlantic.Deep Sea Res. 33: 839–847.

Mory, M., Stern, M. E. and Griffiths, R. W., 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. and Klinger, B. A., 1990. Experimental observations of baroclinic eddies on a sloping bottom.J. Geophys. Res. 95(c6): 9585–9610.

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Related Author

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Related Institution

First Institute of Oceanography (FIO), Ministry of Natural Resources (MNR)

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