Abrupt change in atmospheric CO2 during the last ice age

作者：Ahn Jinho^*; Brook Edward J; Schmittner Andreas; Kreutz Karl

来源：Geophysical Research Letters, 2012, 39: L18711.

DOI：10.1029/2012GL053018

During the last glacial period atmospheric carbon dioxide and temperature in Antarctica varied in a similar fashion on millennial time scales, but previous work indicates that these changes were gradual. In a detailed analysis of one event we now find that approximately half of the CO2 increase that occurred during the 1500-year cold period between Dansgaard-Oeschger (DO) events 8 and 9 happened rapidly, over less than two centuries. This rise in CO2 was synchronous with, or slightly later than, a rapid increase of Antarctic temperature inferred from stable isotopes. Citation: Ahn, J., E. J. Brook, A. Schmittner, and K. Kreutz (2012), Abrupt change in atmospheric CO2 during the last ice age, Geophys. Res. Lett., 39, L18711, doi:10.1029/2012GL053018.

• 出版日期2012-9-28