Self-similarity of the meddy family in the eastern north-atlantic

Publication Type Publication
Publication date 1995
Language English
Full Text Open accesshttp://archimer.ifremer.fr/doc/00097/20779/18403.pdf (0.81 Mo)
Author(s) Shapiro Gi, Zenk W, Meschanov Sl, Tokos Kls
Affiliation(s) CHRISTIAN ALBRECHTS UNIV KIEL,INST MEERESKUNDE,D-24105 KIEL,GERMANY
Source Oceanologica Acta (0399-1784) (Gauthier-Villars), 1995 , Vol. 18 , N. 1 , P. 29-42
WOS© Times Cited 6
Abstract In this study we analyze two groups of Mediterranean salt lenses: ''mid-life'' lenses, typically 1-2 years old, observed in the Canary Basin, and younger Meddies from the Iberian Basin. In contrast to turbulent features, vortex lenses have a clear coherent structure in the temperature and salinity fields. This physical property supports the hypothesis that a mathematical description with only a few degrees of freedom may exist. We use nonlinear transformation of variables to find a unique function describing vertical profiles at different locations inside the lens. When this function is found, its existence is considered as ''self-similarity'' of the lens structure. We also found a common function that describes each group of Meddy, Canary and Iberian, and noted a remarkable difference between the groups. A possible reason for this result might lie in the difference in lens age. Iberian lenses are in a more juvenile state and may go through adjustment transformations before turning into more stable mid-life vortices. The developed parameterization is used to calculate radii and integral heat and salt contents of Meddles.

How to cite this document 

Shapiro Gi, Zenk W, Meschanov Sl, Tokos Kls (1995). Self-similarity of the meddy family in the eastern north-atlantic. Oceanologica Acta, 18(1), 29-42. Open Access version : http://archimer.ifremer.fr/doc/00097/20779/

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