Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2
Several recent papers have demonstrated a decrease in atmospheric pCO2 resulting from barriers to communication between the deep sea and the atmosphere in the Southern Ocean. Stephens and Keeling [2000] decreased pCO2 by increasing Antarctic sea ice in a seven-box model of the world ocean, and Toggw...
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ftunivbern:oai:boris.unibe.ch:158213 2023-08-20T04:02:17+02:00 Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2 Archer, David E. Martin, Pamela A. Milovich, Jose Brovkin, Victor Plattner, Gian-Kasper Ashendel, Carrie 2003 application/pdf https://boris.unibe.ch/158213/1/archer03po.pdf https://boris.unibe.ch/158213/ eng eng American Geophysical Union https://boris.unibe.ch/158213/ info:eu-repo/semantics/openAccess Archer, David E.; Martin, Pamela A.; Milovich, Jose; Brovkin, Victor; Plattner, Gian-Kasper; Ashendel, Carrie (2003). Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2. Paleoceanography, 18(1), n/a-n/a. American Geophysical Union 10.1029/2002PA000760 <http://dx.doi.org/10.1029/2002PA000760> 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2003 ftunivbern https://doi.org/10.1029/2002PA000760 2023-07-31T22:07:57Z Several recent papers have demonstrated a decrease in atmospheric pCO2 resulting from barriers to communication between the deep sea and the atmosphere in the Southern Ocean. Stephens and Keeling [2000] decreased pCO2 by increasing Antarctic sea ice in a seven-box model of the world ocean, and Toggweiler [1999] showed a similar response to Southern Ocean stratification. In box models the pCO2 of the atmosphere is controlled by the region of the surface ocean that fills the deep sea [Archer et al., 2000a]. By severing the Southern Ocean link between the deep sea and the atmosphere, atmospheric pCO2 in these models is controlled elsewhere and typically declines, although the models range widely in their responses. “Continuum models,” such as three-dimensional (3-D) and 2-D general circulation models, control pCO2 in a more distributed way and do not exhibit box model sensitivity to high-latitude sea ice or presumably stratification. There is still uncertainty about the high-latitude sensitivity of the real ocean. Until these model sensitivities can be resolved, glacial pCO2 hypotheses and interpretations based on Southern Ocean barrier mechanisms (see above mentioned references plus Elderfield and Rickaby [2000], Francois et al. [1998], Gildor and Tziperman [2001], Sigman and Boyle [2000], and Watson et al. [2000]) are walking on thin ice. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean BORIS (Bern Open Repository and Information System, University of Bern) Antarctic Southern Ocean Archer ENVELOPE(162.867,162.867,-76.850,-76.850) Paleoceanography 18 1 n/a n/a |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Archer, David E. Martin, Pamela A. Milovich, Jose Brovkin, Victor Plattner, Gian-Kasper Ashendel, Carrie Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2 |
topic_facet |
530 Physics |
description |
Several recent papers have demonstrated a decrease in atmospheric pCO2 resulting from barriers to communication between the deep sea and the atmosphere in the Southern Ocean. Stephens and Keeling [2000] decreased pCO2 by increasing Antarctic sea ice in a seven-box model of the world ocean, and Toggweiler [1999] showed a similar response to Southern Ocean stratification. In box models the pCO2 of the atmosphere is controlled by the region of the surface ocean that fills the deep sea [Archer et al., 2000a]. By severing the Southern Ocean link between the deep sea and the atmosphere, atmospheric pCO2 in these models is controlled elsewhere and typically declines, although the models range widely in their responses. “Continuum models,” such as three-dimensional (3-D) and 2-D general circulation models, control pCO2 in a more distributed way and do not exhibit box model sensitivity to high-latitude sea ice or presumably stratification. There is still uncertainty about the high-latitude sensitivity of the real ocean. Until these model sensitivities can be resolved, glacial pCO2 hypotheses and interpretations based on Southern Ocean barrier mechanisms (see above mentioned references plus Elderfield and Rickaby [2000], Francois et al. [1998], Gildor and Tziperman [2001], Sigman and Boyle [2000], and Watson et al. [2000]) are walking on thin ice. |
format |
Article in Journal/Newspaper |
author |
Archer, David E. Martin, Pamela A. Milovich, Jose Brovkin, Victor Plattner, Gian-Kasper Ashendel, Carrie |
author_facet |
Archer, David E. Martin, Pamela A. Milovich, Jose Brovkin, Victor Plattner, Gian-Kasper Ashendel, Carrie |
author_sort |
Archer, David E. |
title |
Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2 |
title_short |
Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2 |
title_full |
Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2 |
title_fullStr |
Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2 |
title_full_unstemmed |
Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2 |
title_sort |
model sensitivity in the effect of antarctic sea ice and stratification on atmospheric pco2 |
publisher |
American Geophysical Union |
publishDate |
2003 |
url |
https://boris.unibe.ch/158213/1/archer03po.pdf https://boris.unibe.ch/158213/ |
long_lat |
ENVELOPE(162.867,162.867,-76.850,-76.850) |
geographic |
Antarctic Southern Ocean Archer |
geographic_facet |
Antarctic Southern Ocean Archer |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
Archer, David E.; Martin, Pamela A.; Milovich, Jose; Brovkin, Victor; Plattner, Gian-Kasper; Ashendel, Carrie (2003). Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2. Paleoceanography, 18(1), n/a-n/a. American Geophysical Union 10.1029/2002PA000760 <http://dx.doi.org/10.1029/2002PA000760> |
op_relation |
https://boris.unibe.ch/158213/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2002PA000760 |
container_title |
Paleoceanography |
container_volume |
18 |
container_issue |
1 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1774712682722623488 |