The Impact of Recent Climate Change on the Global Ocean Carbon Sink
In recent decades, the ocean CO2 uptake has increased in response to rising atmospheric CO2. Yet, physical climate change also affects the ocean CO2 uptake, but magnitude and driving processes are poorly understood. Using a global ocean biogeochemistry model, we find that without climate change, the...
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ftawi:oai:epic.awi.de:59148 2024-09-30T14:44:05+00:00 The Impact of Recent Climate Change on the Global Ocean Carbon Sink Bunsen, Frauke Hauck, Judith Nissen, Cara 2024-02-23 application/pdf https://epic.awi.de/id/eprint/59148/ https://epic.awi.de/id/eprint/59148/1/Geophysical%20Research%20Letters%20-%202024%20-%20Bunsen%20-%20The%20Impact%20of%20Recent%20Climate%20Change%20on%20the%20Global%20Ocean%20Carbon%20Sink.pdf https://hdl.handle.net/10013/epic.01eb56da-0995-4ef9-bc35-9854265e715e unknown Wiley-Blackwell https://epic.awi.de/id/eprint/59148/1/Geophysical%20Research%20Letters%20-%202024%20-%20Bunsen%20-%20The%20Impact%20of%20Recent%20Climate%20Change%20on%20the%20Global%20Ocean%20Carbon%20Sink.pdf Bunsen, F. , Hauck, J. orcid:0000-0003-4723-9652 and Nissen, C. (2024) The Impact of Recent Climate Change on the Global Ocean Carbon Sink , Geophysical Research Letters, Volume . doi:10.1029/2023GL107030 <https://doi.org/10.1029/2023GL107030> , hdl:10013/epic.01eb56da-0995-4ef9-bc35-9854265e715e EPIC3Geophysical Research Letters, Wiley-Blackwell, Volume, ISSN: 0094-8276 Article isiRev 2024 ftawi https://doi.org/10.1029/2023GL107030 2024-09-17T14:21:57Z In recent decades, the ocean CO2 uptake has increased in response to rising atmospheric CO2. Yet, physical climate change also affects the ocean CO2 uptake, but magnitude and driving processes are poorly understood. Using a global ocean biogeochemistry model, we find that without climate change, the mean carbon uptake 2000–2019 would have been 13% higher and the trend 1958–2019 would have been 27% higher. Changes in wind are the dominant driver of the climate effect on CO2 uptake as they affect advective carbon transport and mixing, but the effect of warming increases over time. Roughly half of the globally integrated wind-driven trend stems from the subpolar Southern Ocean and polar oceans in both hemispheres. Warming reduces the solubility of CO2 and acts rather homogeneously over the world oceans. However, the warming effect on pCO2 is dampened by limited exchange of surface and deep waters. Article in Journal/Newspaper Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Southern Ocean Geophysical Research Letters 51 4 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
In recent decades, the ocean CO2 uptake has increased in response to rising atmospheric CO2. Yet, physical climate change also affects the ocean CO2 uptake, but magnitude and driving processes are poorly understood. Using a global ocean biogeochemistry model, we find that without climate change, the mean carbon uptake 2000–2019 would have been 13% higher and the trend 1958–2019 would have been 27% higher. Changes in wind are the dominant driver of the climate effect on CO2 uptake as they affect advective carbon transport and mixing, but the effect of warming increases over time. Roughly half of the globally integrated wind-driven trend stems from the subpolar Southern Ocean and polar oceans in both hemispheres. Warming reduces the solubility of CO2 and acts rather homogeneously over the world oceans. However, the warming effect on pCO2 is dampened by limited exchange of surface and deep waters. |
format |
Article in Journal/Newspaper |
author |
Bunsen, Frauke Hauck, Judith Nissen, Cara |
spellingShingle |
Bunsen, Frauke Hauck, Judith Nissen, Cara The Impact of Recent Climate Change on the Global Ocean Carbon Sink |
author_facet |
Bunsen, Frauke Hauck, Judith Nissen, Cara |
author_sort |
Bunsen, Frauke |
title |
The Impact of Recent Climate Change on the Global Ocean Carbon Sink |
title_short |
The Impact of Recent Climate Change on the Global Ocean Carbon Sink |
title_full |
The Impact of Recent Climate Change on the Global Ocean Carbon Sink |
title_fullStr |
The Impact of Recent Climate Change on the Global Ocean Carbon Sink |
title_full_unstemmed |
The Impact of Recent Climate Change on the Global Ocean Carbon Sink |
title_sort |
impact of recent climate change on the global ocean carbon sink |
publisher |
Wiley-Blackwell |
publishDate |
2024 |
url |
https://epic.awi.de/id/eprint/59148/ https://epic.awi.de/id/eprint/59148/1/Geophysical%20Research%20Letters%20-%202024%20-%20Bunsen%20-%20The%20Impact%20of%20Recent%20Climate%20Change%20on%20the%20Global%20Ocean%20Carbon%20Sink.pdf https://hdl.handle.net/10013/epic.01eb56da-0995-4ef9-bc35-9854265e715e |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
EPIC3Geophysical Research Letters, Wiley-Blackwell, Volume, ISSN: 0094-8276 |
op_relation |
https://epic.awi.de/id/eprint/59148/1/Geophysical%20Research%20Letters%20-%202024%20-%20Bunsen%20-%20The%20Impact%20of%20Recent%20Climate%20Change%20on%20the%20Global%20Ocean%20Carbon%20Sink.pdf Bunsen, F. , Hauck, J. orcid:0000-0003-4723-9652 and Nissen, C. (2024) The Impact of Recent Climate Change on the Global Ocean Carbon Sink , Geophysical Research Letters, Volume . doi:10.1029/2023GL107030 <https://doi.org/10.1029/2023GL107030> , hdl:10013/epic.01eb56da-0995-4ef9-bc35-9854265e715e |
op_doi |
https://doi.org/10.1029/2023GL107030 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
4 |
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1811645579637293056 |