Self-similarity of the meddy family in the eastern north-atlantic
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 temper...
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ftarchimer:oai:archimer.ifremer.fr:20779 2023-05-15T17:33:05+02:00 Self-similarity of the meddy family in the eastern north-atlantic Shapiro, Gi Zenk, W Meschanov, Sl Tokos, Kls 1995 application/pdf https://archimer.ifremer.fr/doc/00097/20779/18403.pdf https://archimer.ifremer.fr/doc/00097/20779/ eng eng Gauthier-Villars https://archimer.ifremer.fr/doc/00097/20779/18403.pdf https://archimer.ifremer.fr/doc/00097/20779/ info:eu-repo/semantics/openAccess restricted use Oceanologica Acta (0399-1784) (Gauthier-Villars), 1995 , Vol. 18 , N. 1 , P. 29-42 text Publication info:eu-repo/semantics/article 1995 ftarchimer 2021-09-23T20:21:13Z 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. Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Shapiro, Gi Zenk, W Meschanov, Sl Tokos, Kls |
spellingShingle |
Shapiro, Gi Zenk, W Meschanov, Sl Tokos, Kls Self-similarity of the meddy family in the eastern north-atlantic |
author_facet |
Shapiro, Gi Zenk, W Meschanov, Sl Tokos, Kls |
author_sort |
Shapiro, Gi |
title |
Self-similarity of the meddy family in the eastern north-atlantic |
title_short |
Self-similarity of the meddy family in the eastern north-atlantic |
title_full |
Self-similarity of the meddy family in the eastern north-atlantic |
title_fullStr |
Self-similarity of the meddy family in the eastern north-atlantic |
title_full_unstemmed |
Self-similarity of the meddy family in the eastern north-atlantic |
title_sort |
self-similarity of the meddy family in the eastern north-atlantic |
publisher |
Gauthier-Villars |
publishDate |
1995 |
url |
https://archimer.ifremer.fr/doc/00097/20779/18403.pdf https://archimer.ifremer.fr/doc/00097/20779/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Oceanologica Acta (0399-1784) (Gauthier-Villars), 1995 , Vol. 18 , N. 1 , P. 29-42 |
op_relation |
https://archimer.ifremer.fr/doc/00097/20779/18403.pdf https://archimer.ifremer.fr/doc/00097/20779/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
_version_ |
1766131468859342848 |