Record Details
Atmospheric CO₂ and climate from 65 to 30 ka B.P.
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Atmospheric CO₂ and climate from 65 to 30 ka B.P. |
| Names |
Ahn, Jinho
(creator) Brook, Edward J. (creator) |
| Date Issued | 2007 (iso8601) |
| Note | This is the publisher’s final pdf. The published article is copyrighted by the American Geophysical Union and can be found at: http://www.agu.org/journals/gl/. |
| Abstract | Using new and existing ice core CO₂ data from 65 ∼ 30 ka a new chronology for CO₂ is established and synchronized with Greenland ice core records to study how high latitude climate change and the carbon cycle were linked during the last glacial period. Atmospheric CO₂ rose several thousand years before abrupt warming in Greenland associated with Dansgaard-Oeschger events, 8, 12, 14, 17, four large warm events that follow Heinrich events. The CO₂ rise terminated at the onset of Greenland warming for each of these events. Atmospheric CO₂ is strongly correlated with the Antarctic isotopic temperature proxy with an average time lag of 720 ± 370 yr (mean ± 1σ) during the time interval studied. The new data and chronology should provide a better target for models attempting to explain CO₂ variability and abrupt climate change. |
| Genre | Article |
| Identifier | Ahn, J., and E. J. Brook (2007), Atmospheric CO₂ and climate from 65 to 30 ka B.P., Geophysical Research Letters, 34, L10703, doi:10.1029/2007GL029551. |
