The polar ocean and glacial cycles in atmospheric CO2 concentration
The polar ocean and glacial cycles in atmospheric CO2 concentration
Global climate and the atmospheric partial pressure of carbon dioxide ( ) are correlated over recent glacial cycles, with lower during ice ages, but the causes of the changes are unknown. The modern Southern Ocean releases deeply sequestered CO2 to the atmosphere. Growing evidence suggests that the Southern Ocean CO2 ‘leak’ was stemmed during ice ages, increasing ocean CO2 storage. Such a change would also have made the global ocean more alkaline, driving additional ocean CO2 uptake. This explanation for lower ice-age , if correct, has much to teach us about the controls on current ocean processes.
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Sigman, Daniel M.
b7945f7b-3945-4082-9204-feb1eb8cfed7
Hain, Mathis P.
d31486bc-c473-4c34-a814-c0834640876c
Haug, Gerald H.
b6d161a0-4bdc-44d3-8a88-8de0e3517ca8
1 July 2010
Sigman, Daniel M.
b7945f7b-3945-4082-9204-feb1eb8cfed7
Hain, Mathis P.
d31486bc-c473-4c34-a814-c0834640876c
Haug, Gerald H.
b6d161a0-4bdc-44d3-8a88-8de0e3517ca8
Sigman, Daniel M., Hain, Mathis P. and Haug, Gerald H.
(2010)
The polar ocean and glacial cycles in atmospheric CO2 concentration.
Nature, 466 (7302), .
(doi:10.1038/nature09149).
Abstract
Global climate and the atmospheric partial pressure of carbon dioxide ( ) are correlated over recent glacial cycles, with lower during ice ages, but the causes of the changes are unknown. The modern Southern Ocean releases deeply sequestered CO2 to the atmosphere. Growing evidence suggests that the Southern Ocean CO2 ‘leak’ was stemmed during ice ages, increasing ocean CO2 storage. Such a change would also have made the global ocean more alkaline, driving additional ocean CO2 uptake. This explanation for lower ice-age , if correct, has much to teach us about the controls on current ocean processes.
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Published date: 1 July 2010
Organisations:
Paleooceanography & Palaeoclimate
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Local EPrints ID: 358643
URI: http://eprints.soton.ac.uk/id/eprint/358643
ISSN: 0028-0836
PURE UUID: 5d386191-efab-48fd-afa7-b6a92a687100
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Date deposited: 09 Oct 2013 14:36
Last modified: 14 Mar 2024 15:07
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Author:
Daniel M. Sigman
Author:
Gerald H. Haug
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