| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Intrathermocline Eddies Embedded within an Anticyclonic Vortex Ring
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| Autores: |
Meunier, Thomas
Tenreiro, M.
Pallas-sanz, Enric
Ochoa, Jose
Ruiz-angulo, Angel
Portela, Esther
Cusi, Simo
Damien, Pierre
Carton, Xavier
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| Data: |
2018-08
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| Ano: |
2018
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| Palavras-chave: |
Intrathermocline eddies
Submesoscale coherent vortices
Vortex lenses
Loop current eddy
Gulf of Mexico
Submesoscale
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| Resumo: |
High‐resolution hydrographic measurements reveal the presence of three Intra‐Thermocline Eddies (ITEs) embedded within a Loop Current Eddy (LCE). ITEs are lenticular bodies of nearly homogeneous water which contrasts with the well stratified surrounding water. Their radii and thickness ranged between [19‐32] km and [150‐250] m. Negative relative vorticity within their cores (down to ‐0.85 times the Coriolis frequency), along with a large negative stratification anomaly, result in low Ertel Potential Vorticity (PV) and intense negative Ertel Potential Vorticity Anomalies (PVA). Vortex stretching and relative vorticity have comparable contributions to PVA, resulting in Burger numbers of order unity. The similarity of thermohaline properties within the ITE's cores and the surrounding LCE water, suggests that these ITEs likely form by intense mixing events followed by Rossby adjustment.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00440/55122/56578.pdf
DOI:10.1029/2018GL077527
https://archimer.ifremer.fr/doc/00440/55122/
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| Editor: |
Amer Geophysical Union
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| Formato: |
application/pdf
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| Fonte: |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2018-08 , Vol. 45 , N. 15 , P. 7624-7633
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| Direitos: |
2018 American Geophysical Union. All Rights Reserved.
info:eu-repo/semantics/openAccess
restricted use
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