Biogeographical Classification of the Global Ocean From BGC-Argo Floats
International audience Biogeographical classifications of the global ocean generalize spatiotemporal trends in species or biomass distributions across discrete ocean biomes or provinces. These classifications are generally based on a combination of remote-sensed proxies of phytoplankton biomass and...
Published in: | Global Biogeochemical Cycles |
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Main Authors: | , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2022
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03779814 https://hal-insu.archives-ouvertes.fr/insu-03779814/document https://hal-insu.archives-ouvertes.fr/insu-03779814/file/Global%20Biogeochemical%20Cycles%20-%202022%20-%20Bock%20-%20Biogeographical%20Classification%20of%20the%20Global%20Ocean%20From%20BGC%25u2010Argo%20Floats.pdf https://doi.org/10.1029/2021GB007233 |
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ftunivnantes:oai:HAL:insu-03779814v1 2023-05-15T17:35:34+02:00 Biogeographical Classification of the Global Ocean From BGC-Argo Floats Bock, Nicholas Cornec, Marin Claustre, Hervé Duhamel, Solange Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2022 https://hal-insu.archives-ouvertes.fr/insu-03779814 https://hal-insu.archives-ouvertes.fr/insu-03779814/document https://hal-insu.archives-ouvertes.fr/insu-03779814/file/Global%20Biogeochemical%20Cycles%20-%202022%20-%20Bock%20-%20Biogeographical%20Classification%20of%20the%20Global%20Ocean%20From%20BGC%25u2010Argo%20Floats.pdf https://doi.org/10.1029/2021GB007233 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GB007233 insu-03779814 https://hal-insu.archives-ouvertes.fr/insu-03779814 https://hal-insu.archives-ouvertes.fr/insu-03779814/document https://hal-insu.archives-ouvertes.fr/insu-03779814/file/Global%20Biogeochemical%20Cycles%20-%202022%20-%20Bock%20-%20Biogeographical%20Classification%20of%20the%20Global%20Ocean%20From%20BGC%25u2010Argo%20Floats.pdf BIBCODE: 2022GBioC.3607233B doi:10.1029/2021GB007233 http://creativecommons.org/licenses/by-nc-sa/ info:eu-repo/semantics/OpenAccess CC-BY-NC-SA ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal-insu.archives-ouvertes.fr/insu-03779814 Global Biogeochemical Cycles, American Geophysical Union, 2022, 36, ⟨10.1029/2021GB007233⟩ phytoplankton community structure BGC-Argo marine biogeography bio-optical proxies [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.1029/2021GB007233 2022-11-23T00:27:22Z International audience Biogeographical classifications of the global ocean generalize spatiotemporal trends in species or biomass distributions across discrete ocean biomes or provinces. These classifications are generally based on a combination of remote-sensed proxies of phytoplankton biomass and global climatologies of biogeochemical or physical parameters. However, these approaches are limited in their capacity to account for subsurface variability in these parameters. The deployment of autonomous profiling floats in the Biogeochemical Argo network over the last decade has greatly increased global coverage of subsurface measurements of bio-optical proxies for phytoplankton biomass and physiology. In this study, we used empirical orthogonal function analysis to identify the main components of variability in a global data set of 422 annual time series of Chlorophyll a fluorescence and optical backscatter profiles. Applying cluster analysis to these results, we identified six biomes within the global ocean: two high-latitude biomes capturing summer bloom dynamics in the North Atlantic and Southern Ocean and four mid- and low-latitude biomes characterized by variability in the depth and frequency of deep chlorophyll maximum formation. We report the distribution of these biomes along with associated trends in biogeochemical and physicochemical environmental parameters. Our results demonstrate light and nutrients to explain most variability in phytoplankton distributions for all biomes, while highlighting a global inverse relationship between particle stocks in the euphotic zone and transfer efficiency into the mesopelagic zone. In addition to partitioning seasonal variability in vertical phytoplankton distributions at the global scale, our results provide a potentially novel biogeographical classification of the global ocean. Article in Journal/Newspaper North Atlantic Southern Ocean Université de Nantes: HAL-UNIV-NANTES Southern Ocean Global Biogeochemical Cycles 36 6 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
phytoplankton community structure BGC-Argo marine biogeography bio-optical proxies [SDU]Sciences of the Universe [physics] |
spellingShingle |
phytoplankton community structure BGC-Argo marine biogeography bio-optical proxies [SDU]Sciences of the Universe [physics] Bock, Nicholas Cornec, Marin Claustre, Hervé Duhamel, Solange Biogeographical Classification of the Global Ocean From BGC-Argo Floats |
topic_facet |
phytoplankton community structure BGC-Argo marine biogeography bio-optical proxies [SDU]Sciences of the Universe [physics] |
description |
International audience Biogeographical classifications of the global ocean generalize spatiotemporal trends in species or biomass distributions across discrete ocean biomes or provinces. These classifications are generally based on a combination of remote-sensed proxies of phytoplankton biomass and global climatologies of biogeochemical or physical parameters. However, these approaches are limited in their capacity to account for subsurface variability in these parameters. The deployment of autonomous profiling floats in the Biogeochemical Argo network over the last decade has greatly increased global coverage of subsurface measurements of bio-optical proxies for phytoplankton biomass and physiology. In this study, we used empirical orthogonal function analysis to identify the main components of variability in a global data set of 422 annual time series of Chlorophyll a fluorescence and optical backscatter profiles. Applying cluster analysis to these results, we identified six biomes within the global ocean: two high-latitude biomes capturing summer bloom dynamics in the North Atlantic and Southern Ocean and four mid- and low-latitude biomes characterized by variability in the depth and frequency of deep chlorophyll maximum formation. We report the distribution of these biomes along with associated trends in biogeochemical and physicochemical environmental parameters. Our results demonstrate light and nutrients to explain most variability in phytoplankton distributions for all biomes, while highlighting a global inverse relationship between particle stocks in the euphotic zone and transfer efficiency into the mesopelagic zone. In addition to partitioning seasonal variability in vertical phytoplankton distributions at the global scale, our results provide a potentially novel biogeographical classification of the global ocean. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Bock, Nicholas Cornec, Marin Claustre, Hervé Duhamel, Solange |
author_facet |
Bock, Nicholas Cornec, Marin Claustre, Hervé Duhamel, Solange |
author_sort |
Bock, Nicholas |
title |
Biogeographical Classification of the Global Ocean From BGC-Argo Floats |
title_short |
Biogeographical Classification of the Global Ocean From BGC-Argo Floats |
title_full |
Biogeographical Classification of the Global Ocean From BGC-Argo Floats |
title_fullStr |
Biogeographical Classification of the Global Ocean From BGC-Argo Floats |
title_full_unstemmed |
Biogeographical Classification of the Global Ocean From BGC-Argo Floats |
title_sort |
biogeographical classification of the global ocean from bgc-argo floats |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03779814 https://hal-insu.archives-ouvertes.fr/insu-03779814/document https://hal-insu.archives-ouvertes.fr/insu-03779814/file/Global%20Biogeochemical%20Cycles%20-%202022%20-%20Bock%20-%20Biogeographical%20Classification%20of%20the%20Global%20Ocean%20From%20BGC%25u2010Argo%20Floats.pdf https://doi.org/10.1029/2021GB007233 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_source |
ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal-insu.archives-ouvertes.fr/insu-03779814 Global Biogeochemical Cycles, American Geophysical Union, 2022, 36, ⟨10.1029/2021GB007233⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GB007233 insu-03779814 https://hal-insu.archives-ouvertes.fr/insu-03779814 https://hal-insu.archives-ouvertes.fr/insu-03779814/document https://hal-insu.archives-ouvertes.fr/insu-03779814/file/Global%20Biogeochemical%20Cycles%20-%202022%20-%20Bock%20-%20Biogeographical%20Classification%20of%20the%20Global%20Ocean%20From%20BGC%25u2010Argo%20Floats.pdf BIBCODE: 2022GBioC.3607233B doi:10.1029/2021GB007233 |
op_rights |
http://creativecommons.org/licenses/by-nc-sa/ info:eu-repo/semantics/OpenAccess |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.1029/2021GB007233 |
container_title |
Global Biogeochemical Cycles |
container_volume |
36 |
container_issue |
6 |
_version_ |
1766134772357136384 |