Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing
International audience Arctic warming alters land-to-sea fluxes of nutrients and organic matter, which impact air-sea carbon exchange. Here we use an ocean-biogeochemical model of the southeastern Beaufort Sea (SBS) to investigate the role of Mackenzie River biogeochemical discharge in modulating ai...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
|
Subjects: | |
Online Access: | https://hal.science/hal-04074930 https://hal.science/hal-04074930/document https://hal.science/hal-04074930/file/Bertin%20et%20al.%20-%202023%20-%20Biogeochemical%20River%20Runoff%20Drives%20Intense%20Coastal.pdf https://doi.org/10.1029/2022GL102377 |
id |
ftccsdartic:oai:HAL:hal-04074930v1 |
---|---|
record_format |
openpolar |
institution |
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.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry Bertin, C. Carroll, D. Menemenlis, D. Dutkiewicz, S. Zhang, H. Matsuoka, A. Tank, S. Manizza, M. Miller, C, E Babin, M. Mangin, A. Le Fouest, V. Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
description |
International audience Arctic warming alters land-to-sea fluxes of nutrients and organic matter, which impact air-sea carbon exchange. Here we use an ocean-biogeochemical model of the southeastern Beaufort Sea (SBS) to investigate the role of Mackenzie River biogeochemical discharge in modulating air-sea CO2 fluxes during 2000–2019. The contribution of six biogeochemical discharge constituents leads to a net CO2 outgassing of 0.13 TgC yr −1, with a decrease in the coastal SBS carbon sink of 0.23 and 0.4 TgC yr −1 due to riverine dissolved organic and inorganic carbon, respectively. Years with high (low) discharge promote more CO2 outgassing (uptake) from the river plume. These results demonstrate that the Mackenzie River modulates the capacity of the SBS to act as a sink or source of atmospheric CO2. Our work suggests that accurate model representation of land-to-sea biogeochemical coupling can be critical for assessing present-day Arctic coastal ocean response to the rapidly changing environment. |
author2 |
LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Moss Landing Marine Laboratories Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Massachusetts Institute of Technology (MIT) Institute for the Study of Earth, Oceans, and Space Durham (EOS) University of New Hampshire (UNH) University of Alberta Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) This work is part of the Nunataryuk project; the project has received funding under the European Union's Horizon 2020 Research and Innovation Programme under grant agreement no. 773421. This work was also funded by the Centre National de la Recherche Scientifique (CNRS, LEFE program). Part of this research was supported by Japan Aerospace Exploration Agency (JAXA) Global Change Observation Mission-Climate (GCOM-C) to AM (contract #19RT000542). This work was also supported by the NASA Earth Science Division's Interdisciplinary Science (IDS) program through an award to the Jet Propulsion Laboratory, California Institute of Technology, under contract with National Aeronautics and Space Administration (80NM0018D0004). Part of this research was supported by the Arctic Great River Observatory (ArcticGRO) to ST (contract NSF 1913888). European Project: 773421,H2020,H2020-BG-2017-1,NUNATARYUK(2017) |
format |
Article in Journal/Newspaper |
author |
Bertin, C. Carroll, D. Menemenlis, D. Dutkiewicz, S. Zhang, H. Matsuoka, A. Tank, S. Manizza, M. Miller, C, E Babin, M. Mangin, A. Le Fouest, V. |
author_facet |
Bertin, C. Carroll, D. Menemenlis, D. Dutkiewicz, S. Zhang, H. Matsuoka, A. Tank, S. Manizza, M. Miller, C, E Babin, M. Mangin, A. Le Fouest, V. |
author_sort |
Bertin, C. |
title |
Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing |
title_short |
Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing |
title_full |
Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing |
title_fullStr |
Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing |
title_full_unstemmed |
Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing |
title_sort |
biogeochemical river runoff drives intense coastal arctic ocean co2 outgassing |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04074930 https://hal.science/hal-04074930/document https://hal.science/hal-04074930/file/Bertin%20et%20al.%20-%202023%20-%20Biogeochemical%20River%20Runoff%20Drives%20Intense%20Coastal.pdf https://doi.org/10.1029/2022GL102377 |
geographic |
Arctic Arctic Ocean Mackenzie River |
geographic_facet |
Arctic Arctic Ocean Mackenzie River |
genre |
Arctic Arctic Arctic Ocean Beaufort Sea Mackenzie river |
genre_facet |
Arctic Arctic Arctic Ocean Beaufort Sea Mackenzie river |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-04074930 Geophysical Research Letters, 2023, 50 (8), pp.e2022GL102377. ⟨10.1029/2022GL102377⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2022GL102377 info:eu-repo/grantAgreement//773421/EU/Permafrost thaw and the changing arctic coast: science for socio-economic adaptation/NUNATARYUK hal-04074930 https://hal.science/hal-04074930 https://hal.science/hal-04074930/document https://hal.science/hal-04074930/file/Bertin%20et%20al.%20-%202023%20-%20Biogeochemical%20River%20Runoff%20Drives%20Intense%20Coastal.pdf doi:10.1029/2022GL102377 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2022GL102377 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
8 |
_version_ |
1792043263456182272 |
spelling |
ftccsdartic:oai:HAL:hal-04074930v1 2024-02-27T08:36:19+00:00 Biogeochemical River Runoff Drives Intense Coastal Arctic Ocean CO2 Outgassing Bertin, C. Carroll, D. Menemenlis, D. Dutkiewicz, S. Zhang, H. Matsuoka, A. Tank, S. Manizza, M. Miller, C, E Babin, M. Mangin, A. Le Fouest, V. LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Moss Landing Marine Laboratories Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Massachusetts Institute of Technology (MIT) Institute for the Study of Earth, Oceans, and Space Durham (EOS) University of New Hampshire (UNH) University of Alberta Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) This work is part of the Nunataryuk project; the project has received funding under the European Union's Horizon 2020 Research and Innovation Programme under grant agreement no. 773421. This work was also funded by the Centre National de la Recherche Scientifique (CNRS, LEFE program). Part of this research was supported by Japan Aerospace Exploration Agency (JAXA) Global Change Observation Mission-Climate (GCOM-C) to AM (contract #19RT000542). This work was also supported by the NASA Earth Science Division's Interdisciplinary Science (IDS) program through an award to the Jet Propulsion Laboratory, California Institute of Technology, under contract with National Aeronautics and Space Administration (80NM0018D0004). Part of this research was supported by the Arctic Great River Observatory (ArcticGRO) to ST (contract NSF 1913888). European Project: 773421,H2020,H2020-BG-2017-1,NUNATARYUK(2017) 2023 https://hal.science/hal-04074930 https://hal.science/hal-04074930/document https://hal.science/hal-04074930/file/Bertin%20et%20al.%20-%202023%20-%20Biogeochemical%20River%20Runoff%20Drives%20Intense%20Coastal.pdf https://doi.org/10.1029/2022GL102377 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2022GL102377 info:eu-repo/grantAgreement//773421/EU/Permafrost thaw and the changing arctic coast: science for socio-economic adaptation/NUNATARYUK hal-04074930 https://hal.science/hal-04074930 https://hal.science/hal-04074930/document https://hal.science/hal-04074930/file/Bertin%20et%20al.%20-%202023%20-%20Biogeochemical%20River%20Runoff%20Drives%20Intense%20Coastal.pdf doi:10.1029/2022GL102377 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-04074930 Geophysical Research Letters, 2023, 50 (8), pp.e2022GL102377. ⟨10.1029/2022GL102377⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry info:eu-repo/semantics/article Journal articles 2023 ftccsdartic https://doi.org/10.1029/2022GL102377 2024-01-28T00:48:04Z International audience Arctic warming alters land-to-sea fluxes of nutrients and organic matter, which impact air-sea carbon exchange. Here we use an ocean-biogeochemical model of the southeastern Beaufort Sea (SBS) to investigate the role of Mackenzie River biogeochemical discharge in modulating air-sea CO2 fluxes during 2000–2019. The contribution of six biogeochemical discharge constituents leads to a net CO2 outgassing of 0.13 TgC yr −1, with a decrease in the coastal SBS carbon sink of 0.23 and 0.4 TgC yr −1 due to riverine dissolved organic and inorganic carbon, respectively. Years with high (low) discharge promote more CO2 outgassing (uptake) from the river plume. These results demonstrate that the Mackenzie River modulates the capacity of the SBS to act as a sink or source of atmospheric CO2. Our work suggests that accurate model representation of land-to-sea biogeochemical coupling can be critical for assessing present-day Arctic coastal ocean response to the rapidly changing environment. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Beaufort Sea Mackenzie river Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Arctic Ocean Mackenzie River Geophysical Research Letters 50 8 |