Atmospheric CO₂ and climate from 65 to 30 ka B.P. Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/mc87pw549

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  • Atmospheric CO2 and climate from 65 to 30 ka B.P.
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  • 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.
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  • 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.
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  • description.provenance : Made available in DSpace on 2012-02-04T00:55:32Z (GMT). No. of bitstreams: 1 BrookEdwardCEOASAtmosphericCO2Climate.pdf: 194858 bytes, checksum: 7ad7d8fa58f4d630e5ae5493f3f88c96 (MD5) Previous issue date: 2007
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2012-02-04T00:55:32Z No. of bitstreams: 1 BrookEdwardCEOASAtmosphericCO2Climate.pdf: 194858 bytes, checksum: 7ad7d8fa58f4d630e5ae5493f3f88c96 (MD5)
  • Geophysical Research Letters
  • Vol. 34 no. L10703

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