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| Bashmachnikov, I.; Carton, Xavier; Belonenko, T. V.. |
| In this work, we obtain new results on the manifestation of meddies (or of other deep eddies) at the sea-surface, further developing the results by Bashmachnikov and Carton (2012). The quasi-geostrophic equations are used to describe a near-axisymmetric vortex in the upper ocean, forced at its lower boundary by the isopycnal elevation of a moving meddy. The solution thus obtained provides a better approximation of the characteristics of meddy surface signals. The results show that in subtropics large meddies with dynamic radius R-m >30 km are always seen at the sea-surface with AVISO altimetry, that medium-size meddies with R-m = 20 km may be seen at the sea-surface only if they are sufficiently shallow and strong, while small meddies with R-m =10 km... |
| Tipo: Text |
Palavras-chave: Meddies; Surface signal; Altimetry. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00245/35615/34134.pdf |
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