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4. Institut de Recherche pour le Développement - IRD - Cosecha

Título :	oceanic mesoscale cyclones cluster surface Lagrangian material
Palabras clave :	Ocean;mesoscale;clustering;Lagrangian;surface;convergence
Descripción :	An asymmetry in the clustering of oceanic surface material has been observed at the submesoscales. Energetic and ephemeral submesoscale cyclonic fronts are associated with convergence zones, hence cluster surface material. Their anticyclonic counterparts do not feature such an effect. Yet, at the mesoscale, literature has been contradictory about such an asymmetry. Here, we combine surface drifter trajectories with an altimetry-derived mesoscale eddy database in the North Atlantic to show that mesoscale cyclones contain 24% more drifters than anticyclones. A numerical Lagrangian experiment using a mesoscale-resolving model quantitatively reproduces the observational results. It reveals that particles preferentially cluster in cyclonic regions, both in fronts and eddies. The model further suggests that ageostrophic cyclonic fronts concentrate particles a few days before the eddy formation and detection.
URI :	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/169129
Otros identificadores :	https://www.documentation.ird.fr/hor/fdi:010084397 oai:ird.fr:fdi:010084397 Vic C., Hascoet S., Gula J., Huck T., Maes Christophe. oceanic mesoscale cyclones cluster surface Lagrangian material. 2022, 49 (4), p. e2021GL097488 [9 p.]
Aparece en las colecciones:	Institut de Recherche pour le Développement - IRD - Cosecha

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