Oceanic mesoscale cyclones cluster surface Lagrangian material
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 me...
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ftird:oai:ird.fr:fdi:010084397 2024-09-09T19:56:46+00:00 Oceanic mesoscale cyclones cluster surface Lagrangian material Vic, C. Hascoet, S. Gula, J. Huck, T. /Maes, Christophe ATLANTIQUE 2022 https://www.documentation.ird.fr/hor/fdi:010084397 EN eng 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), e2021GL097488 [9 p.] Ocean mesoscale clustering Lagrangian surface convergence text 2022 ftird 2024-08-15T05:57:40Z 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. Text North Atlantic IRD (Institute de recherche pour le développement): Horizon |
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IRD (Institute de recherche pour le développement): Horizon |
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English |
topic |
Ocean mesoscale clustering Lagrangian surface convergence |
spellingShingle |
Ocean mesoscale clustering Lagrangian surface convergence Vic, C. Hascoet, S. Gula, J. Huck, T. /Maes, Christophe Oceanic mesoscale cyclones cluster surface Lagrangian material |
topic_facet |
Ocean mesoscale clustering Lagrangian surface convergence |
description |
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. |
format |
Text |
author |
Vic, C. Hascoet, S. Gula, J. Huck, T. /Maes, Christophe |
author_facet |
Vic, C. Hascoet, S. Gula, J. Huck, T. /Maes, Christophe |
author_sort |
Vic, C. |
title |
Oceanic mesoscale cyclones cluster surface Lagrangian material |
title_short |
Oceanic mesoscale cyclones cluster surface Lagrangian material |
title_full |
Oceanic mesoscale cyclones cluster surface Lagrangian material |
title_fullStr |
Oceanic mesoscale cyclones cluster surface Lagrangian material |
title_full_unstemmed |
Oceanic mesoscale cyclones cluster surface Lagrangian material |
title_sort |
oceanic mesoscale cyclones cluster surface lagrangian material |
publishDate |
2022 |
url |
https://www.documentation.ird.fr/hor/fdi:010084397 |
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ATLANTIQUE |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
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), e2021GL097488 [9 p.] |
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1809927591925121024 |