Abrupt change in atmospheric CO₂ during the last ice age Public Deposited

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  • Abrupt change in atmospheric CO2 during the last ice age
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  • 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.
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  • Ahn, J., E. J. Brook, A. Schmittner, and K. Kreutz (2012), Abrupt change in atmospheric CO2 during the last ice age, Geophysical Research Letters, 39, L18711, doi:10.1029/2012GL053018.
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  • description.provenance : Made available in DSpace on 2012-11-14T22:27:05Z (GMT). No. of bitstreams: 1 BrookEdwardCEOASAbruptChangeAtmosphericCO2.pdf: 1144928 bytes, checksum: 8918bfffa5b51afe26ea004e222f88ee (MD5) Previous issue date: 2012-09-28
  • Vol. 39 no. L18711
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2012-11-14T22:27:04Z No. of bitstreams: 1 BrookEdwardCEOASAbruptChangeAtmosphericCO2.pdf: 1144928 bytes, checksum: 8918bfffa5b51afe26ea004e222f88ee (MD5)
  • Geophysical Research Letters

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