Timing of Antarctic temperature and CO2 changes across the last deglaciation
The analysis of air bubbles from ice cores has yielded a precise record of atmospheric greenhouse gas concen- trations, but the timing of changes in these gases with respect to temperature is not accurately known because of uncertainty in the gas age–ice age difference (∆age). A previous study (Monn...
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ftawi:oai:epic.awi.de:30293 2024-09-15T17:45:13+00:00 Timing of Antarctic temperature and CO2 changes across the last deglaciation Parrenin, F. Raynaud, D. Köhler, Peter Masson-Delmotte, V. Paillard, D. Schwander, J. Barbante, C. Landais, A. Wegner, Anna Jouzel, J. 2012 https://epic.awi.de/id/eprint/30293/ https://hdl.handle.net/10013/epic.39178 unknown Copernicus, Göttingen Parrenin, F. , Raynaud, D. , Köhler, P. orcid:0000-0003-0904-8484 , Masson-Delmotte, V. , Paillard, D. , Schwander, J. , Barbante, C. , Landais, A. , Wegner, A. and Jouzel, J. (2012) Timing of Antarctic temperature and CO2 changes across the last deglaciation , EGU General Assembly 2012, Vienna, 22 April 2012 - 27 April 2012 . hdl:10013/epic.39178 EPIC3EGU General Assembly 2012, Vienna, 2012-04-22-2012-04-27Geophysical Research Abstracts, Vol. 14, EGU2012-11777-1, Copernicus, Göttingen Conference notRev 2012 ftawi 2024-06-24T04:05:07Z The analysis of air bubbles from ice cores has yielded a precise record of atmospheric greenhouse gas concen- trations, but the timing of changes in these gases with respect to temperature is not accurately known because of uncertainty in the gas age–ice age difference (∆age). A previous study (Monnin et al., 2001) has concluded that Antarctic temperature warming preceeded the CO2 rise by 800 ± 600 years during the last deglaciation. Here, based on several techniques, we revised this ∆age estimate. The sequence of events during Termination III sug- gests that the CO2 increase and Antarctic deglacial warming were roughly in phase. This finding has important consequences concerning our understanding of the role of CO2 during past and future climate changes. CO2 might be more than a simple amplifier during climate changes. Conference Object Antarc* Antarctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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unknown |
description |
The analysis of air bubbles from ice cores has yielded a precise record of atmospheric greenhouse gas concen- trations, but the timing of changes in these gases with respect to temperature is not accurately known because of uncertainty in the gas age–ice age difference (∆age). A previous study (Monnin et al., 2001) has concluded that Antarctic temperature warming preceeded the CO2 rise by 800 ± 600 years during the last deglaciation. Here, based on several techniques, we revised this ∆age estimate. The sequence of events during Termination III sug- gests that the CO2 increase and Antarctic deglacial warming were roughly in phase. This finding has important consequences concerning our understanding of the role of CO2 during past and future climate changes. CO2 might be more than a simple amplifier during climate changes. |
format |
Conference Object |
author |
Parrenin, F. Raynaud, D. Köhler, Peter Masson-Delmotte, V. Paillard, D. Schwander, J. Barbante, C. Landais, A. Wegner, Anna Jouzel, J. |
spellingShingle |
Parrenin, F. Raynaud, D. Köhler, Peter Masson-Delmotte, V. Paillard, D. Schwander, J. Barbante, C. Landais, A. Wegner, Anna Jouzel, J. Timing of Antarctic temperature and CO2 changes across the last deglaciation |
author_facet |
Parrenin, F. Raynaud, D. Köhler, Peter Masson-Delmotte, V. Paillard, D. Schwander, J. Barbante, C. Landais, A. Wegner, Anna Jouzel, J. |
author_sort |
Parrenin, F. |
title |
Timing of Antarctic temperature and CO2 changes across the last deglaciation |
title_short |
Timing of Antarctic temperature and CO2 changes across the last deglaciation |
title_full |
Timing of Antarctic temperature and CO2 changes across the last deglaciation |
title_fullStr |
Timing of Antarctic temperature and CO2 changes across the last deglaciation |
title_full_unstemmed |
Timing of Antarctic temperature and CO2 changes across the last deglaciation |
title_sort |
timing of antarctic temperature and co2 changes across the last deglaciation |
publisher |
Copernicus, Göttingen |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/30293/ https://hdl.handle.net/10013/epic.39178 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
EPIC3EGU General Assembly 2012, Vienna, 2012-04-22-2012-04-27Geophysical Research Abstracts, Vol. 14, EGU2012-11777-1, Copernicus, Göttingen |
op_relation |
Parrenin, F. , Raynaud, D. , Köhler, P. orcid:0000-0003-0904-8484 , Masson-Delmotte, V. , Paillard, D. , Schwander, J. , Barbante, C. , Landais, A. , Wegner, A. and Jouzel, J. (2012) Timing of Antarctic temperature and CO2 changes across the last deglaciation , EGU General Assembly 2012, Vienna, 22 April 2012 - 27 April 2012 . hdl:10013/epic.39178 |
_version_ |
1810492961529528320 |