Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean
International audience The Southern Ocean (SO), an area highly sensitive to climate change, is currently experiencing rapid warming and freshening. Such drastic physical changes might significantly alter the SO's biological pump. For more accurate predictions of the possible evolution of this p...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2017
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Subjects: | |
Online Access: | https://hal.science/hal-01629465 https://hal.science/hal-01629465/document https://hal.science/hal-01629465/file/Ardyna_2016.pdf https://doi.org/10.1002/2016GL072428 |
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ftepunivpsaclay:oai:HAL:hal-01629465v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
École Polytechnique, Université Paris-Saclay: HAL |
op_collection_id |
ftepunivpsaclay |
language |
English |
topic |
remote sensing phytoplankton ecology phytoplankton phenology biological pump climate Change Southern Ocean [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
spellingShingle |
remote sensing phytoplankton ecology phytoplankton phenology biological pump climate Change Southern Ocean [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] Ardyna, Mathieu Claustre, Hervé Sallée, Jean-Baptiste d'Ovidio, Francesco Gentili, Bernard van Dijken, Gert d'Ortenzio, Fabrizio Arrigo, Kevin Robert Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean |
topic_facet |
remote sensing phytoplankton ecology phytoplankton phenology biological pump climate Change Southern Ocean [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
description |
International audience The Southern Ocean (SO), an area highly sensitive to climate change, is currently experiencing rapid warming and freshening. Such drastic physical changes might significantly alter the SO's biological pump. For more accurate predictions of the possible evolution of this pump, a better understanding of the environmental factors controlling SO phytoplankton dynamics is needed. Here we present a satellite-based study deciphering the complex environmental control of phytoplankton biomass (PB) and phenology (PH; timing and magnitude of phytoplankton blooms) in the SO. We reveal that PH and PB are mostly organized in the SO at two scales: a large latitudinal scale and a regional scale. Latitudinally, a clear gradient in the timing of bloom occurrence appears tightly linked to the seasonal cycle in irradiance, with some exceptions in specific light-limited regimes (i.e., well-mixed areas). Superimposed on this latitudinal scale, zonal asymmetries, up to 3 orders of magnitude, in regional-scale PB are mainly driven by local advective and iron supply processes. These findings provide a global understanding of PB and PH in the SO, which is of fundamental interest for identifying and explaining ongoing changes as well as predicting future changes in the SO biological pump. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Department of Earth System Science Stanford (ESS) Stanford EARTH Stanford University-Stanford University |
format |
Article in Journal/Newspaper |
author |
Ardyna, Mathieu Claustre, Hervé Sallée, Jean-Baptiste d'Ovidio, Francesco Gentili, Bernard van Dijken, Gert d'Ortenzio, Fabrizio Arrigo, Kevin Robert |
author_facet |
Ardyna, Mathieu Claustre, Hervé Sallée, Jean-Baptiste d'Ovidio, Francesco Gentili, Bernard van Dijken, Gert d'Ortenzio, Fabrizio Arrigo, Kevin Robert |
author_sort |
Ardyna, Mathieu |
title |
Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean |
title_short |
Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean |
title_full |
Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean |
title_fullStr |
Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean |
title_full_unstemmed |
Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean |
title_sort |
delineating environmental control of phytoplankton biomass and phenology in the southern ocean |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01629465 https://hal.science/hal-01629465/document https://hal.science/hal-01629465/file/Ardyna_2016.pdf https://doi.org/10.1002/2016GL072428 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-01629465 Geophysical Research Letters, 2017, 44 (10), pp.5016 - 5024. ⟨10.1002/2016GL072428⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL072428 hal-01629465 https://hal.science/hal-01629465 https://hal.science/hal-01629465/document https://hal.science/hal-01629465/file/Ardyna_2016.pdf doi:10.1002/2016GL072428 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2016GL072428 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
10 |
container_start_page |
5016 |
op_container_end_page |
5024 |
_version_ |
1799467256157044736 |
spelling |
ftepunivpsaclay:oai:HAL:hal-01629465v1 2024-05-19T07:48:53+00:00 Delineating environmental control of phytoplankton biomass and phenology in the Southern Ocean Ardyna, Mathieu Claustre, Hervé Sallée, Jean-Baptiste d'Ovidio, Francesco Gentili, Bernard van Dijken, Gert d'Ortenzio, Fabrizio Arrigo, Kevin Robert Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Processus de couplage à Petite Echelle, Ecosystèmes et Prédateurs Supérieurs (PEPS) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Department of Earth System Science Stanford (ESS) Stanford EARTH Stanford University-Stanford University 2017-05-28 https://hal.science/hal-01629465 https://hal.science/hal-01629465/document https://hal.science/hal-01629465/file/Ardyna_2016.pdf https://doi.org/10.1002/2016GL072428 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL072428 hal-01629465 https://hal.science/hal-01629465 https://hal.science/hal-01629465/document https://hal.science/hal-01629465/file/Ardyna_2016.pdf doi:10.1002/2016GL072428 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-01629465 Geophysical Research Letters, 2017, 44 (10), pp.5016 - 5024. ⟨10.1002/2016GL072428⟩ remote sensing phytoplankton ecology phytoplankton phenology biological pump climate Change Southern Ocean [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2017 ftepunivpsaclay https://doi.org/10.1002/2016GL072428 2024-04-25T00:44:07Z International audience The Southern Ocean (SO), an area highly sensitive to climate change, is currently experiencing rapid warming and freshening. Such drastic physical changes might significantly alter the SO's biological pump. For more accurate predictions of the possible evolution of this pump, a better understanding of the environmental factors controlling SO phytoplankton dynamics is needed. Here we present a satellite-based study deciphering the complex environmental control of phytoplankton biomass (PB) and phenology (PH; timing and magnitude of phytoplankton blooms) in the SO. We reveal that PH and PB are mostly organized in the SO at two scales: a large latitudinal scale and a regional scale. Latitudinally, a clear gradient in the timing of bloom occurrence appears tightly linked to the seasonal cycle in irradiance, with some exceptions in specific light-limited regimes (i.e., well-mixed areas). Superimposed on this latitudinal scale, zonal asymmetries, up to 3 orders of magnitude, in regional-scale PB are mainly driven by local advective and iron supply processes. These findings provide a global understanding of PB and PH in the SO, which is of fundamental interest for identifying and explaining ongoing changes as well as predicting future changes in the SO biological pump. Article in Journal/Newspaper Southern Ocean École Polytechnique, Université Paris-Saclay: HAL Geophysical Research Letters 44 10 5016 5024 |