Abrupt change in atmospheric CO 2  during the last ice age | Zendy

Ahn Jinho | Zendy; Brook Edward J. | Zendy; Schmittner Andreas | Zendy; Kreutz Karl | Zendy

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Abrupt change in atmospheric CO 2 during the last ice age

Author(s) -

Ahn Jinho,

Brook Edward J.,

Schmittner Andreas,

Kreutz Karl

Publication year - 2012

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/2012gl053018

Subject(s) - carbon dioxide in earth's atmosphere , glacial period , period (music) , ice core , carbon dioxide , climatology , geology , atmospheric sciences , ice age , atmospheric temperature , environmental science , climate change , oceanography , chemistry , geomorphology , physics , organic chemistry , acoustics

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 CO 2 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 CO 2 was synchronous with, or slightly later than, a rapid increase of Antarctic temperature inferred from stable isotopes.

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