Sustained growth of the Southern Ocean carbon storage in a warming climate
We investigate the mechanisms controlling the evolution of Southern Ocean carbon storage under a future climate warming scenario. A subset of Coupled Model Intercomparison Project Phase 5 models predicts that the inventory of biologically sequestered carbon south of 40°S increases about 18-34 Pg C b...
Published in: | Geophysical Research Letters |
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Language: | English |
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John Wiley & Sons
2015
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-021-892 https://doi.org/10.1002/2015GL064320 |
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ftncar:oai:drupal-site.org:articles_16791 2023-09-05T13:13:05+02:00 Sustained growth of the Southern Ocean carbon storage in a warming climate Ito, Takamitsu (author) Bracco, Annalisa (author) Deutsch, Curtis (author) Frenzel, Hartmut (author) Long, Matthew (author) Takano, Yohei (author) 2015-06-16 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-021-892 https://doi.org/10.1002/2015GL064320 en eng John Wiley & Sons Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-021-892 doi:10.1002/2015GL064320 ark:/85065/d70v8dz9 Copyright 2015 American Geophysical Union. Text article 2015 ftncar https://doi.org/10.1002/2015GL064320 2023-08-14T18:35:52Z We investigate the mechanisms controlling the evolution of Southern Ocean carbon storage under a future climate warming scenario. A subset of Coupled Model Intercomparison Project Phase 5 models predicts that the inventory of biologically sequestered carbon south of 40°S increases about 18-34 Pg C by 2100 relative to the preindustrial condition. Sensitivity experiments with an ocean circulation and biogeochemistry model illustrates the impacts of the wind and buoyancy forcings under a warming climate. Intensified and poleward shifted westerly wind strengthens the upper overturning circulation, not only leading to an increased uptake of anthropogenic CO₂ but also releasing biologically regenerated carbon to the atmosphere. Freshening of Antarctic Surface Water causes a slowdown of the lower overturning circulation, leading to an increased Southern Ocean biological carbon storage. The rectified effect of these processes operating together is the sustained growth of the carbon storage in the Southern Ocean, even under the warming climate with a weaker global ocean carbon uptake. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Southern Ocean Geophysical Research Letters 42 11 4516 4522 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
We investigate the mechanisms controlling the evolution of Southern Ocean carbon storage under a future climate warming scenario. A subset of Coupled Model Intercomparison Project Phase 5 models predicts that the inventory of biologically sequestered carbon south of 40°S increases about 18-34 Pg C by 2100 relative to the preindustrial condition. Sensitivity experiments with an ocean circulation and biogeochemistry model illustrates the impacts of the wind and buoyancy forcings under a warming climate. Intensified and poleward shifted westerly wind strengthens the upper overturning circulation, not only leading to an increased uptake of anthropogenic CO₂ but also releasing biologically regenerated carbon to the atmosphere. Freshening of Antarctic Surface Water causes a slowdown of the lower overturning circulation, leading to an increased Southern Ocean biological carbon storage. The rectified effect of these processes operating together is the sustained growth of the carbon storage in the Southern Ocean, even under the warming climate with a weaker global ocean carbon uptake. |
author2 |
Ito, Takamitsu (author) Bracco, Annalisa (author) Deutsch, Curtis (author) Frenzel, Hartmut (author) Long, Matthew (author) Takano, Yohei (author) |
format |
Article in Journal/Newspaper |
title |
Sustained growth of the Southern Ocean carbon storage in a warming climate |
spellingShingle |
Sustained growth of the Southern Ocean carbon storage in a warming climate |
title_short |
Sustained growth of the Southern Ocean carbon storage in a warming climate |
title_full |
Sustained growth of the Southern Ocean carbon storage in a warming climate |
title_fullStr |
Sustained growth of the Southern Ocean carbon storage in a warming climate |
title_full_unstemmed |
Sustained growth of the Southern Ocean carbon storage in a warming climate |
title_sort |
sustained growth of the southern ocean carbon storage in a warming climate |
publisher |
John Wiley & Sons |
publishDate |
2015 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-021-892 https://doi.org/10.1002/2015GL064320 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-021-892 doi:10.1002/2015GL064320 ark:/85065/d70v8dz9 |
op_rights |
Copyright 2015 American Geophysical Union. |
op_doi |
https://doi.org/10.1002/2015GL064320 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
11 |
container_start_page |
4516 |
op_container_end_page |
4522 |
_version_ |
1776203362637709312 |