Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean
International audience How do Rossby waves influence primary production in the North Atlantic Ocean? Rossby waves have a clear signature on surface chlorophyll concentrations which can be explained by a combination of vertical and horizontal mechanisms (reviewed in Killworth et al., 2004). In this s...
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ftmeteofrance:oai:HAL:hal-00331136v1 2024-09-09T19:56:15+00:00 Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean Charria, G. Dadou, I. Cipollini, P. Drévillon, M. Garçon, V. Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) National Oceanography Centre Southampton (NOC) University of Southampton Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) 2007-11-29 https://hal.science/hal-00331136 https://hal.science/hal-00331136/document https://hal.science/hal-00331136/file/osd-4-933-2007.pdf en eng HAL CCSD European Geosciences Union hal-00331136 https://hal.science/hal-00331136 https://hal.science/hal-00331136/document https://hal.science/hal-00331136/file/osd-4-933-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1812-0806 EISSN: 1812-0822 Ocean Science Discussions https://hal.science/hal-00331136 Ocean Science Discussions, 2007, 4 (6), pp.933-967 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2007 ftmeteofrance 2024-06-25T00:11:56Z International audience How do Rossby waves influence primary production in the North Atlantic Ocean? Rossby waves have a clear signature on surface chlorophyll concentrations which can be explained by a combination of vertical and horizontal mechanisms (reviewed in Killworth et al., 2004). In this study, we aim to investigate the role of the different physical processes to explain the surface chlorophyll signatures and the consequences on primary production using a 3-D coupled physical/biogeochemical model for the year 1998. The analysis at 20 given latitudes, mainly located in the subtropical gyre, where Rossby waves are strongly correlated with a surface chlorophyll signature, shows that vertical and horizontal processes are involved in the surface chlorophyll anomalies. Furthermore, the ecosystem response is, as expected, stronger when vertical input of dissolved inorganic nitrogen is observed. The surface chlorophyll anomalies, induced by these physical mechanisms, have an impact on primary production. We then estimate that Rossby waves induce, locally in space and time, increases (generally associated with the wave crest) and decreases (generally associated with the wave trough) in primary production (~±20% of the estimated primary production). This symmetrical situation suggests a net weak effect of Rossby waves on primary production. Article in Journal/Newspaper North Atlantic Météo-France: HAL |
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Open Polar |
collection |
Météo-France: HAL |
op_collection_id |
ftmeteofrance |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Charria, G. Dadou, I. Cipollini, P. Drévillon, M. Garçon, V. Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience How do Rossby waves influence primary production in the North Atlantic Ocean? Rossby waves have a clear signature on surface chlorophyll concentrations which can be explained by a combination of vertical and horizontal mechanisms (reviewed in Killworth et al., 2004). In this study, we aim to investigate the role of the different physical processes to explain the surface chlorophyll signatures and the consequences on primary production using a 3-D coupled physical/biogeochemical model for the year 1998. The analysis at 20 given latitudes, mainly located in the subtropical gyre, where Rossby waves are strongly correlated with a surface chlorophyll signature, shows that vertical and horizontal processes are involved in the surface chlorophyll anomalies. Furthermore, the ecosystem response is, as expected, stronger when vertical input of dissolved inorganic nitrogen is observed. The surface chlorophyll anomalies, induced by these physical mechanisms, have an impact on primary production. We then estimate that Rossby waves induce, locally in space and time, increases (generally associated with the wave crest) and decreases (generally associated with the wave trough) in primary production (~±20% of the estimated primary production). This symmetrical situation suggests a net weak effect of Rossby waves on primary production. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) National Oceanography Centre Southampton (NOC) University of Southampton Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) |
format |
Article in Journal/Newspaper |
author |
Charria, G. Dadou, I. Cipollini, P. Drévillon, M. Garçon, V. |
author_facet |
Charria, G. Dadou, I. Cipollini, P. Drévillon, M. Garçon, V. |
author_sort |
Charria, G. |
title |
Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean |
title_short |
Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean |
title_full |
Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean |
title_fullStr |
Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean |
title_full_unstemmed |
Influence of Rossby waves on primary production from a coupled physical-biogeochemical model in the North Atlantic Ocean |
title_sort |
influence of rossby waves on primary production from a coupled physical-biogeochemical model in the north atlantic ocean |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00331136 https://hal.science/hal-00331136/document https://hal.science/hal-00331136/file/osd-4-933-2007.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1812-0806 EISSN: 1812-0822 Ocean Science Discussions https://hal.science/hal-00331136 Ocean Science Discussions, 2007, 4 (6), pp.933-967 |
op_relation |
hal-00331136 https://hal.science/hal-00331136 https://hal.science/hal-00331136/document https://hal.science/hal-00331136/file/osd-4-933-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1809926888564457472 |