The University of Southampton
University of Southampton Institutional Repository

Ocean-atmosphere partitioning of anthropogenic carbon dioxide on centennial timescales

Ocean-atmosphere partitioning of anthropogenic carbon dioxide on centennial timescales
Ocean-atmosphere partitioning of anthropogenic carbon dioxide on centennial timescales
A theory for the ocean-atmosphere partitioning of anthropogenic carbon dioxide on centennial timescales is presented. The partial pressure of atmospheric CO2 (PCO2) is related to the external CO2 input (??C) at air-sea equilibrium by: PCO2 = 280 ppm exp(??C/[IA + IO/R]), where IA, IO, and R are the pre-industrial values of the atmospheric CO2 inventory, the oceanic dissolved inorganic carbon inventory, and the Revelle buffer factor of seawater, respectively. This analytical expression is tested with two- and three-box ocean models, as well as for a version of the Massachusetts Institute of Technology general circulation model (MIT GCM) with a constant circulation field, and found to be valid by at least 10% accuracy for emissions lower than 4500 GtC. This relationship provides the stable level that PCO2 reaches for a given emission size, until atmospheric carbon is reduced on weathering timescales. On the basis of the MIT GCM, future carbon emissions must be restricted to a total of 700 GtC to achieve PCO2 stabilization at present-day transient levels.
carbon dioxide, anthropogenic
0886-6236
GB1014-[10pp]
Goodwin, Philip
87dbb154-5c39-473a-8121-c794487ee1fd
Williams, Richard G.
2155309e-1c07-4365-b46a-04baeb2fb63c
Follows, Michael J.
12c723bc-f2f8-43f4-a309-bff6885b9c7c
Dutkiewicz, Stephanie
a704ddd3-bd6c-4f4a-ba0c-f6420c9c3b3b
Goodwin, Philip
87dbb154-5c39-473a-8121-c794487ee1fd
Williams, Richard G.
2155309e-1c07-4365-b46a-04baeb2fb63c
Follows, Michael J.
12c723bc-f2f8-43f4-a309-bff6885b9c7c
Dutkiewicz, Stephanie
a704ddd3-bd6c-4f4a-ba0c-f6420c9c3b3b

Goodwin, Philip, Williams, Richard G., Follows, Michael J. and Dutkiewicz, Stephanie (2007) Ocean-atmosphere partitioning of anthropogenic carbon dioxide on centennial timescales. Global Biogeochemical Cycles, 21 (1), GB1014-[10pp]. (doi:10.1029/2006GB002810).

Record type: Article

Abstract

A theory for the ocean-atmosphere partitioning of anthropogenic carbon dioxide on centennial timescales is presented. The partial pressure of atmospheric CO2 (PCO2) is related to the external CO2 input (??C) at air-sea equilibrium by: PCO2 = 280 ppm exp(??C/[IA + IO/R]), where IA, IO, and R are the pre-industrial values of the atmospheric CO2 inventory, the oceanic dissolved inorganic carbon inventory, and the Revelle buffer factor of seawater, respectively. This analytical expression is tested with two- and three-box ocean models, as well as for a version of the Massachusetts Institute of Technology general circulation model (MIT GCM) with a constant circulation field, and found to be valid by at least 10% accuracy for emissions lower than 4500 GtC. This relationship provides the stable level that PCO2 reaches for a given emission size, until atmospheric carbon is reduced on weathering timescales. On the basis of the MIT GCM, future carbon emissions must be restricted to a total of 700 GtC to achieve PCO2 stabilization at present-day transient levels.

This record has no associated files available for download.

More information

e-pub ahead of print date: 6 March 2007
Published date: March 2007
Keywords: carbon dioxide, anthropogenic
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 350517
URI: http://eprints.soton.ac.uk/id/eprint/350517
ISSN: 0886-6236
PURE UUID: 33074845-6e51-4795-8f86-67f65231d61f
ORCID for Philip Goodwin: ORCID iD orcid.org/0000-0002-2575-8948

Catalogue record

Date deposited: 26 Mar 2013 10:28
Last modified: 01 Apr 2022 01:44

Export record

Altmetrics

Contributors

Author: Philip Goodwin ORCID iD
Author: Richard G. Williams
Author: Michael J. Follows
Author: Stephanie Dutkiewicz

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×