Quantitative interpretation of atmospheric carbon records during the last glacial / interglacial transition


Contact
pkoehler [ at ] awi-bremerhaven.de

Abstract

The cause of the glacial/interglacialchange in atmospheric pCO2 is oneof the most interesting aspect inpaleoclimatic research still unknown.Forcing a coupled ocean-atmosphere-biospherebox model of the global carbon cyclewith proxy data over the last glacialtermination we are able to quantitativelyreproduce transient variations in pCO2,d13CO2 and D14C observed in naturalclimate archives. According to ourmodel, a reduction of aeolian ironfertilization in the Southern Oceantriggers the onset of the pCO2increase followed by a breakdownin Southern Ocean stratification.We further deduce that a significantreduction of the thermohalinecirculation during the Younger Dryaswas very unlikely.



Item Type
Conference (Invited talk)
Authors
Divisions
Programs
Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
Seminar of the Department of Climate and Environmental Physics, University of Bern Switzerland.06.2004..
Eprint ID
10531
Cite as
Köhler, P. , Fischer, H. and Zeebe, R. (2004): Quantitative interpretation of atmospheric carbon records during the last glacial / interglacial transition , Seminar of the Department of Climate and Environmental Physics, University of Bern Switzerland.06.2004. .


Share

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item