Importance of coastal nutrient supply for global ocean biogeochemistry
The coastal ocean provides nutrients to the open ocean in accounts that are poorly quantified. We use an ocean biogeochemistry model to assess the importance of the coastal nutrient supply to global ocean biogeochemistry. The model includes full cycles of P, Si, and Fe, as well as the representation...
Published in: | Global Biogeochemical Cycles |
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Online Access: | https://hal.archives-ouvertes.fr/hal-00765332 https://doi.org/10.1029/2006GB002717 |
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ftccsdartic:oai:HAL:hal-00765332v1 2023-05-15T15:06:10+02:00 Importance of coastal nutrient supply for global ocean biogeochemistry GIRAUD, Xavier Le Quere, Corinne Da Cunha, Leticia C. Institut für Geophysik Zürich Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) 2008-06-17 https://hal.archives-ouvertes.fr/hal-00765332 https://doi.org/10.1029/2006GB002717 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2006GB002717 hal-00765332 https://hal.archives-ouvertes.fr/hal-00765332 doi:10.1029/2006GB002717 ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.archives-ouvertes.fr/hal-00765332 Global Biogeochemical Cycles, American Geophysical Union, 2008, 22 (2), pp.GB2025. ⟨10.1029/2006GB002717⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2008 ftccsdartic https://doi.org/10.1029/2006GB002717 2021-05-30T00:23:29Z The coastal ocean provides nutrients to the open ocean in accounts that are poorly quantified. We use an ocean biogeochemistry model to assess the importance of the coastal nutrient supply to global ocean biogeochemistry. The model includes full cycles of P, Si, and Fe, as well as the representation of two phytoplankton groups, two zooplankton groups, and two organic detritus pools. When coastal mixing is enhanced to reproduce the action of tides and storms, primary production and chlorophyll-a (Chla) concentrations show a large increase at the coast and a smaller increase in the open ocean. When coastal nutrient supply is enhanced to reproduce sediment resuspension or river supply, both the coastal ocean and the open ocean primary production and Chla concentration increase in comparable amounts. In agreement with the definition of nutrient limitation areas in the model, coastal export of P-excess impacts mainly the subtropical oligotrophic areas, Si-excess impacts the Arctic Ocean and some coastal areas, and Fe-excess impacts the east equatorial Pacific, North Atlantic and North Pacific, and the Southern Ocean. Modeled Chla is closest to observations when the input ratio of Fe to P and Si is enhanced. Article in Journal/Newspaper Arctic Arctic Ocean North Atlantic Phytoplankton Southern Ocean Zooplankton Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Southern Ocean Arctic Ocean Pacific Global Biogeochemical Cycles 22 2 n/a n/a |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography GIRAUD, Xavier Le Quere, Corinne Da Cunha, Leticia C. Importance of coastal nutrient supply for global ocean biogeochemistry |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
The coastal ocean provides nutrients to the open ocean in accounts that are poorly quantified. We use an ocean biogeochemistry model to assess the importance of the coastal nutrient supply to global ocean biogeochemistry. The model includes full cycles of P, Si, and Fe, as well as the representation of two phytoplankton groups, two zooplankton groups, and two organic detritus pools. When coastal mixing is enhanced to reproduce the action of tides and storms, primary production and chlorophyll-a (Chla) concentrations show a large increase at the coast and a smaller increase in the open ocean. When coastal nutrient supply is enhanced to reproduce sediment resuspension or river supply, both the coastal ocean and the open ocean primary production and Chla concentration increase in comparable amounts. In agreement with the definition of nutrient limitation areas in the model, coastal export of P-excess impacts mainly the subtropical oligotrophic areas, Si-excess impacts the Arctic Ocean and some coastal areas, and Fe-excess impacts the east equatorial Pacific, North Atlantic and North Pacific, and the Southern Ocean. Modeled Chla is closest to observations when the input ratio of Fe to P and Si is enhanced. |
author2 |
Institut für Geophysik Zürich Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) |
format |
Article in Journal/Newspaper |
author |
GIRAUD, Xavier Le Quere, Corinne Da Cunha, Leticia C. |
author_facet |
GIRAUD, Xavier Le Quere, Corinne Da Cunha, Leticia C. |
author_sort |
GIRAUD, Xavier |
title |
Importance of coastal nutrient supply for global ocean biogeochemistry |
title_short |
Importance of coastal nutrient supply for global ocean biogeochemistry |
title_full |
Importance of coastal nutrient supply for global ocean biogeochemistry |
title_fullStr |
Importance of coastal nutrient supply for global ocean biogeochemistry |
title_full_unstemmed |
Importance of coastal nutrient supply for global ocean biogeochemistry |
title_sort |
importance of coastal nutrient supply for global ocean biogeochemistry |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.archives-ouvertes.fr/hal-00765332 https://doi.org/10.1029/2006GB002717 |
geographic |
Arctic Southern Ocean Arctic Ocean Pacific |
geographic_facet |
Arctic Southern Ocean Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean North Atlantic Phytoplankton Southern Ocean Zooplankton |
genre_facet |
Arctic Arctic Ocean North Atlantic Phytoplankton Southern Ocean Zooplankton |
op_source |
ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.archives-ouvertes.fr/hal-00765332 Global Biogeochemical Cycles, American Geophysical Union, 2008, 22 (2), pp.GB2025. ⟨10.1029/2006GB002717⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2006GB002717 hal-00765332 https://hal.archives-ouvertes.fr/hal-00765332 doi:10.1029/2006GB002717 |
op_doi |
https://doi.org/10.1029/2006GB002717 |
container_title |
Global Biogeochemical Cycles |
container_volume |
22 |
container_issue |
2 |
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n/a |
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n/a |
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1766337818754285568 |