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| Titel |
Atmospheric CO2 change during Greenlandic stadials |
| VerfasserIn |
Jinho Ahn, Ed Brook |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250090379
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| Publikation (Nr.) |
 EGU/EGU2014-4613.pdf |
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| Zusammenfassung |
| Reconstruction of atmospheric CO2 during past abrupt climate change may help us better understand climate-carbon cycle feedbacks. Previous ice core studies revealed simultaneous increases in atmospheric CO2 and Antarctic temperature during times when Greenland and the northern hemisphere experienced very long, cold stadial conditions during the last ice age. Whether this relationship extends to all of the numerous stadial events in the Greenland ice core record has not been clear. In order to investigate CO2 variations during short stadials, we obtained a multi-decadal to centennial CO2 record from Siple Dome ice core, Antarctica. Our new results cover the time interval of 22 to 41 ka. We find that CO2 neither increases nor positively correlates with Antarctic warming during short stadial events, implying that the climate perturbation that produced the short stadials was not strong enough to substantially alter the carbon cycle. |
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