Interannual variability of the oceanic sink of CO 2 from 1979 through 1997
International audience We have estimated the interannual variability in the oceanic sink of CO 2 with a three-dimensional global-scale model which includes ocean circulation and simple biogeochemistry. The model was forced from 1979 to 1997 by a combination of daily to weekly data from the European...
Published in: | Global Biogeochemical Cycles |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2000
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Subjects: | |
Online Access: | https://hal.science/hal-00772170 https://hal.science/hal-00772170/document https://hal.science/hal-00772170/file/1999GB900049.pdf https://doi.org/10.1029/1999GB900049 |
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Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
Oceanography: Biological and Chemical: Carbon cycling Oceanography: Physical: El Nino Oceanography: General: Climate and interannual variability [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
Oceanography: Biological and Chemical: Carbon cycling Oceanography: Physical: El Nino Oceanography: General: Climate and interannual variability [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Le Quéré, Corinne Orr, James C. Monfray, Patrick Aumont, Olivier Madec, Gurvan Interannual variability of the oceanic sink of CO 2 from 1979 through 1997 |
topic_facet |
Oceanography: Biological and Chemical: Carbon cycling Oceanography: Physical: El Nino Oceanography: General: Climate and interannual variability [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience We have estimated the interannual variability in the oceanic sink of CO 2 with a three-dimensional global-scale model which includes ocean circulation and simple biogeochemistry. The model was forced from 1979 to 1997 by a combination of daily to weekly data from the European Center for Medium-Range Weather Forecast and the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis as well as European Remote Sensing satellite observations. For this period, the ocean sink of CO 2 is estimated to vary between 1.4 and 2.2 Pg C yr -1 , as a result of annually averaged interannual variability of +/-0.4 Pg C yr -1 that fluctuates about a mean of 1.8 Pg C yr -1 . Our interannual variability roughly agrees in amplitude with previous ocean-based estimates but is 2 to 4 times less than estimates based on atmospheric observations. About 70% of the global variance in our modeled flux of CO 2 originated in the equatorial Pacific. In that region, our modeled variability in the flux of CO 2 generally agreed with that observed to +/-0.1 Pg C yr -1 . The predominance of the equatorial Pacific for interannual variability is caused by three factors: (1) interannual variability associated with El Niño events occurs in phase over the entire basin, whereas elsewhere positive and negative anomalies partly cancel each other out (e.g., for events such as Antarctic Circumpolar Wave and the North Atlantic Oscillation); (2) dynamic processes dominate in the equatorial Pacific, whereas dynamic, thermodynamic, and biological processes partly cancel one another at higher latitudes; and (3) our model underestimates the variability in ocean dynamics and biology at high latitudes. |
author2 |
University of East Anglia Norwich (UEA) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) National Institute for Earth Science and Astronomy (INSU-CNRS) Institut national des sciences de l'Univers (INSU - CNRS) 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) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Le Quéré, Corinne Orr, James C. Monfray, Patrick Aumont, Olivier Madec, Gurvan |
author_facet |
Le Quéré, Corinne Orr, James C. Monfray, Patrick Aumont, Olivier Madec, Gurvan |
author_sort |
Le Quéré, Corinne |
title |
Interannual variability of the oceanic sink of CO 2 from 1979 through 1997 |
title_short |
Interannual variability of the oceanic sink of CO 2 from 1979 through 1997 |
title_full |
Interannual variability of the oceanic sink of CO 2 from 1979 through 1997 |
title_fullStr |
Interannual variability of the oceanic sink of CO 2 from 1979 through 1997 |
title_full_unstemmed |
Interannual variability of the oceanic sink of CO 2 from 1979 through 1997 |
title_sort |
interannual variability of the oceanic sink of co 2 from 1979 through 1997 |
publisher |
HAL CCSD |
publishDate |
2000 |
url |
https://hal.science/hal-00772170 https://hal.science/hal-00772170/document https://hal.science/hal-00772170/file/1999GB900049.pdf https://doi.org/10.1029/1999GB900049 |
genre |
Antarc* Antarctic North Atlantic North Atlantic oscillation |
genre_facet |
Antarc* Antarctic North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.science/hal-00772170 Global Biogeochemical Cycles, 2000, 14, pp.1247-1266. ⟨10.1029/1999GB900049⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/1999GB900049 hal-00772170 https://hal.science/hal-00772170 https://hal.science/hal-00772170/document https://hal.science/hal-00772170/file/1999GB900049.pdf BIBCODE: 2000GBioC.14.1247L doi:10.1029/1999GB900049 WOS: 000166341000020 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/1999GB900049 |
container_title |
Global Biogeochemical Cycles |
container_volume |
14 |
container_issue |
4 |
container_start_page |
1247 |
op_container_end_page |
1265 |
_version_ |
1797588509280698368 |
spelling |
ftuniversailles:oai:HAL:hal-00772170v1 2024-04-28T07:57:25+00:00 Interannual variability of the oceanic sink of CO 2 from 1979 through 1997 Le Quéré, Corinne Orr, James C. Monfray, Patrick Aumont, Olivier Madec, Gurvan University of East Anglia Norwich (UEA) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) National Institute for Earth Science and Astronomy (INSU-CNRS) Institut national des sciences de l'Univers (INSU - CNRS) 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) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) 2000 https://hal.science/hal-00772170 https://hal.science/hal-00772170/document https://hal.science/hal-00772170/file/1999GB900049.pdf https://doi.org/10.1029/1999GB900049 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/1999GB900049 hal-00772170 https://hal.science/hal-00772170 https://hal.science/hal-00772170/document https://hal.science/hal-00772170/file/1999GB900049.pdf BIBCODE: 2000GBioC.14.1247L doi:10.1029/1999GB900049 WOS: 000166341000020 info:eu-repo/semantics/OpenAccess ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.science/hal-00772170 Global Biogeochemical Cycles, 2000, 14, pp.1247-1266. ⟨10.1029/1999GB900049⟩ Oceanography: Biological and Chemical: Carbon cycling Oceanography: Physical: El Nino Oceanography: General: Climate and interannual variability [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2000 ftuniversailles https://doi.org/10.1029/1999GB900049 2024-04-04T17:36:17Z International audience We have estimated the interannual variability in the oceanic sink of CO 2 with a three-dimensional global-scale model which includes ocean circulation and simple biogeochemistry. The model was forced from 1979 to 1997 by a combination of daily to weekly data from the European Center for Medium-Range Weather Forecast and the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis as well as European Remote Sensing satellite observations. For this period, the ocean sink of CO 2 is estimated to vary between 1.4 and 2.2 Pg C yr -1 , as a result of annually averaged interannual variability of +/-0.4 Pg C yr -1 that fluctuates about a mean of 1.8 Pg C yr -1 . Our interannual variability roughly agrees in amplitude with previous ocean-based estimates but is 2 to 4 times less than estimates based on atmospheric observations. About 70% of the global variance in our modeled flux of CO 2 originated in the equatorial Pacific. In that region, our modeled variability in the flux of CO 2 generally agreed with that observed to +/-0.1 Pg C yr -1 . The predominance of the equatorial Pacific for interannual variability is caused by three factors: (1) interannual variability associated with El Niño events occurs in phase over the entire basin, whereas elsewhere positive and negative anomalies partly cancel each other out (e.g., for events such as Antarctic Circumpolar Wave and the North Atlantic Oscillation); (2) dynamic processes dominate in the equatorial Pacific, whereas dynamic, thermodynamic, and biological processes partly cancel one another at higher latitudes; and (3) our model underestimates the variability in ocean dynamics and biology at high latitudes. Article in Journal/Newspaper Antarc* Antarctic North Atlantic North Atlantic oscillation Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Global Biogeochemical Cycles 14 4 1247 1265 |