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A large class of non-zonal oceanic flows satisfying the arnold-blumen sufficient condition for stability

 

作者: Ettore Salusti,   Francesco Zirilli,  

 

期刊: Geophysical & Astrophysical Fluid Dynamics  (Taylor Available online 1986)
卷期: Volume 35, issue 1-4  

页码: 157-171

 

ISSN:0309-1929

 

年代: 1986

 

DOI:10.1080/03091928608245891

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Recently Andrews has discussed an example of a topographically-forced non-zonal now satisfying the Arnold-Blumen sufficient condition for stability. At large distances from the topographic centre this flow becomes purely zonal and westward. After underlining the richness of solutions of the Andrews model, the present paper goes on to show that Andrews' technique can be applied successfully to a model where the vertical profile of static stability resembles those found in the ocean. In particular we obtain a large class of hydrodynamic stable flows, forced by the bottom topography, for continuously stratified fluids (two layers each with uniform Brunt-Väisälä frequency).

 

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