Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport
International audience European eel (Anguilla anguilla) larvae achieve one of the longest larval migrations of the marine realm, i.e., more than 6000 km from their spawning grounds in the Sargasso Sea to European continental shelves. The duration of this migration remains debated, between 7 months a...
Published in: | Dynamics of Atmospheres and Oceans |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
|
Subjects: | |
Online Access: | https://hal.science/hal-00717384 https://doi.org/10.1016/j.dynatmoce.2012.04.003 |
id |
ftunimontpellier:oai:HAL:hal-00717384v1 |
---|---|
record_format |
openpolar |
spelling |
ftunimontpellier:oai:HAL:hal-00717384v1 2023-12-17T10:18:37+01:00 Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport Blanke, Bruno Bonhommeau, Sylvain Grima, Nicolas Drillet, Yann Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Ecosystèmes Marins Exploités (UMR EME) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM) Mercator Océan Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Service hydrographique et océanographique de la Marine-Centre National de la Recherche Scientifique (CNRS)-Météo-France 2012 https://hal.science/hal-00717384 https://doi.org/10.1016/j.dynatmoce.2012.04.003 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dynatmoce.2012.04.003 hal-00717384 https://hal.science/hal-00717384 doi:10.1016/j.dynatmoce.2012.04.003 ISSN: 0377-0265 Dynamics of Atmospheres and Oceans https://hal.science/hal-00717384 Dynamics of Atmospheres and Oceans, 2012, 55-56, pp.22-44. ⟨10.1016/j.dynatmoce.2012.04.003⟩ Ocean modeling Lagrangian trajectories Ocean circulation Oceanic eddies European eel migration time [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2012 ftunimontpellier https://doi.org/10.1016/j.dynatmoce.2012.04.003 2023-11-21T23:33:40Z International audience European eel (Anguilla anguilla) larvae achieve one of the longest larval migrations of the marine realm, i.e., more than 6000 km from their spawning grounds in the Sargasso Sea to European continental shelves. The duration of this migration remains debated, between 7 months and 3 years. This information is, however, crucial since it determines the period over which larvae are affected by environmental conditions and hence the subsequent recruitment success. We investigate the pathways and duration of trans-Atlantic connections using 3 years of high-resolution (daily, 1/12°) velocity fields available from a Mercator-Océan model configuration without data assimilation. We study specifically the effect of spatial and temporal resolutions on our estimates by applying various filters in time (from daily to 12-day averages) and space (from 1/12° to 1° gridcell aggregation) to the nominal model outputs. Numerical particles are released in the presumed European eel spawning area and considered as passive tracers at three specific depths (around 0, 50, and 200 m). We diagnose particularly the intensity of the water transfer between suitable control sections that encompass the eel larva distribution. Transit ages are also investigated, with a particular focus on the pathways that minimize the connection times between the western and eastern North Atlantic. We show that small-scale structures (eddies and filaments) contribute to faster connections though they also correspond to additional complexity in trajectories. The shortest pathways mostly follow the Gulf Stream and the North Atlantic Drift, whereas interior connections require longer transfers that prove less compatible with biological observations. Article in Journal/Newspaper Anguilla anguilla North Atlantic Université de Montpellier: HAL Dynamics of Atmospheres and Oceans 55-56 22 44 |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
Ocean modeling Lagrangian trajectories Ocean circulation Oceanic eddies European eel migration time [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Ocean modeling Lagrangian trajectories Ocean circulation Oceanic eddies European eel migration time [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Blanke, Bruno Bonhommeau, Sylvain Grima, Nicolas Drillet, Yann Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport |
topic_facet |
Ocean modeling Lagrangian trajectories Ocean circulation Oceanic eddies European eel migration time [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience European eel (Anguilla anguilla) larvae achieve one of the longest larval migrations of the marine realm, i.e., more than 6000 km from their spawning grounds in the Sargasso Sea to European continental shelves. The duration of this migration remains debated, between 7 months and 3 years. This information is, however, crucial since it determines the period over which larvae are affected by environmental conditions and hence the subsequent recruitment success. We investigate the pathways and duration of trans-Atlantic connections using 3 years of high-resolution (daily, 1/12°) velocity fields available from a Mercator-Océan model configuration without data assimilation. We study specifically the effect of spatial and temporal resolutions on our estimates by applying various filters in time (from daily to 12-day averages) and space (from 1/12° to 1° gridcell aggregation) to the nominal model outputs. Numerical particles are released in the presumed European eel spawning area and considered as passive tracers at three specific depths (around 0, 50, and 200 m). We diagnose particularly the intensity of the water transfer between suitable control sections that encompass the eel larva distribution. Transit ages are also investigated, with a particular focus on the pathways that minimize the connection times between the western and eastern North Atlantic. We show that small-scale structures (eddies and filaments) contribute to faster connections though they also correspond to additional complexity in trajectories. The shortest pathways mostly follow the Gulf Stream and the North Atlantic Drift, whereas interior connections require longer transfers that prove less compatible with biological observations. |
author2 |
Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Ecosystèmes Marins Exploités (UMR EME) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM) Mercator Océan Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Service hydrographique et océanographique de la Marine-Centre National de la Recherche Scientifique (CNRS)-Météo-France |
format |
Article in Journal/Newspaper |
author |
Blanke, Bruno Bonhommeau, Sylvain Grima, Nicolas Drillet, Yann |
author_facet |
Blanke, Bruno Bonhommeau, Sylvain Grima, Nicolas Drillet, Yann |
author_sort |
Blanke, Bruno |
title |
Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport |
title_short |
Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport |
title_full |
Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport |
title_fullStr |
Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport |
title_full_unstemmed |
Sensitivity of advective transfer times across the North Atlantic Ocean to the temporal and spatial resolution of model velocity data: Implication for European eel larval transport |
title_sort |
sensitivity of advective transfer times across the north atlantic ocean to the temporal and spatial resolution of model velocity data: implication for european eel larval transport |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00717384 https://doi.org/10.1016/j.dynatmoce.2012.04.003 |
genre |
Anguilla anguilla North Atlantic |
genre_facet |
Anguilla anguilla North Atlantic |
op_source |
ISSN: 0377-0265 Dynamics of Atmospheres and Oceans https://hal.science/hal-00717384 Dynamics of Atmospheres and Oceans, 2012, 55-56, pp.22-44. ⟨10.1016/j.dynatmoce.2012.04.003⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dynatmoce.2012.04.003 hal-00717384 https://hal.science/hal-00717384 doi:10.1016/j.dynatmoce.2012.04.003 |
op_doi |
https://doi.org/10.1016/j.dynatmoce.2012.04.003 |
container_title |
Dynamics of Atmospheres and Oceans |
container_volume |
55-56 |
container_start_page |
22 |
op_container_end_page |
44 |
_version_ |
1785578183909703680 |