Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state
[1] The dependence on the mean climate state of the response of the Atlantic meridional overturning circulation (AMOC) is investigated in 17 increasing greenhouse gas experiments with different initial conditions. The AMOC declines in all experiments by 15 % to 31%, with typically the largest declin...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.532.603 2023-05-15T18:18:24+02:00 Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state Andrew J The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.532.603 http://www.cccma.ec.gc.ca/papers/osaenko/PDF/moc_co2.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.532.603 http://www.cccma.ec.gc.ca/papers/osaenko/PDF/moc_co2.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cccma.ec.gc.ca/papers/osaenko/PDF/moc_co2.pdf text ftciteseerx 2016-01-08T10:40:44Z [1] The dependence on the mean climate state of the response of the Atlantic meridional overturning circulation (AMOC) is investigated in 17 increasing greenhouse gas experiments with different initial conditions. The AMOC declines in all experiments by 15 % to 31%, with typically the largest declines in those experiments with the strongest initial AMOC. In all cases, changes in surface heat fluxes, rather than changes in surface freshwater fluxes, are the dominant cause for the transient AMOC decrease. Surface freshwater fluxes actually switch from reducing the transient AMOC decrease, for low values of atmospheric CO2, to reinforcing the transient AMOC decrease, for higher values of atmospheric CO2. In addition, we find that due to changes in the strengths of feedbacks associated with water vapour and snow/sea ice, the climate sensitivity and transient climate response of the UVic model strongly depends on the mean climate state. Citation: Weaver, A. J., M. Eby, M. Kienast, and O. A. Saenko (2007), Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state, Geophys. Res. Lett., 34, L05708, doi:10.1029/2006GL028756. Text Sea ice Unknown Weaver ENVELOPE(-153.833,-153.833,-86.967,-86.967) |
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ftciteseerx |
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English |
description |
[1] The dependence on the mean climate state of the response of the Atlantic meridional overturning circulation (AMOC) is investigated in 17 increasing greenhouse gas experiments with different initial conditions. The AMOC declines in all experiments by 15 % to 31%, with typically the largest declines in those experiments with the strongest initial AMOC. In all cases, changes in surface heat fluxes, rather than changes in surface freshwater fluxes, are the dominant cause for the transient AMOC decrease. Surface freshwater fluxes actually switch from reducing the transient AMOC decrease, for low values of atmospheric CO2, to reinforcing the transient AMOC decrease, for higher values of atmospheric CO2. In addition, we find that due to changes in the strengths of feedbacks associated with water vapour and snow/sea ice, the climate sensitivity and transient climate response of the UVic model strongly depends on the mean climate state. Citation: Weaver, A. J., M. Eby, M. Kienast, and O. A. Saenko (2007), Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state, Geophys. Res. Lett., 34, L05708, doi:10.1029/2006GL028756. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Andrew J |
spellingShingle |
Andrew J Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state |
author_facet |
Andrew J |
author_sort |
Andrew J |
title |
Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state |
title_short |
Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state |
title_full |
Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state |
title_fullStr |
Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state |
title_full_unstemmed |
Response of the Atlantic meridional overturning circulation to increasing atmospheric CO2: Sensitivity to mean climate state |
title_sort |
response of the atlantic meridional overturning circulation to increasing atmospheric co2: sensitivity to mean climate state |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.532.603 http://www.cccma.ec.gc.ca/papers/osaenko/PDF/moc_co2.pdf |
long_lat |
ENVELOPE(-153.833,-153.833,-86.967,-86.967) |
geographic |
Weaver |
geographic_facet |
Weaver |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
http://www.cccma.ec.gc.ca/papers/osaenko/PDF/moc_co2.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.532.603 http://www.cccma.ec.gc.ca/papers/osaenko/PDF/moc_co2.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766194974365319168 |