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Timing of the Antarctic cold reversal and the atmospheric CO2 increase with respect to the Younger Dryas Event
Open accessAbstract
The transition from the Last Glacial to the Holocene is a key period for understanding the mechanisms of global climate change. Ice cores from the large polar ice sheets provide a wealth of information with good time resolution for this period. However, interactions between the two hemispheres can only be investigated if ice core records from Greenland and Antarctica can be synchronised accurately and reliably. The atmospheric methane concentration shows large and very fast changes during this period. These variations are well suited for a synchronisation of the age scales of ice cores from Greenland and Antarctica. Here we confirm the proposed lead of the Antarctic Cold Reversal on the Younger Dryas cold event. The Antarctic cooling precedes the Younger Dryas by at least 1.8 kyr. This suggests that northern and southern hemispheres were in anti‐phase during the Younger Dryas cold event. A further result of the synchronisation is that the long‐term glacial‐interglacial increase of atmospheric CO 2 was not interrupted during the Younger Dryas event and that atmospheric CO 2 changes are not necessarily dominated by changes in the North Atlantic circulation.
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Citations
Cited by
The 8k event: cause and consequences of a major Holocene abrupt climate change
ALLEY, R., & AGUSTSDOTTIR, A. (2005) · Quaternary Science Reviews · doi:10.1016/j.quascirev.2004.12.004 · Cited by 916
Asynchrony of Antarctic and Greenland climate change during the last glacial period
Blunier, T., Chappellaz, J., Schwander, J., Dällenbach, A., Stauffer, B., Stocker, T. F., Raynaud, D., Jouzel, J., Clausen, H. B., Hammer, C. U., et al. (1998) · Nature · doi:10.1038/29447 · Cited by 772
Self-citationThe evolution of the Patagonian Ice Sheet from 35 ka to the present day (PATICE)
Davies, B. J., Darvill, C. M., Lovell, H., Bendle, J. M., Dowdeswell, J. A., Fabel, D., García, J.-L., Geiger, A., Glasser, N. F., Gheorghiu, D. M., et al. (2020) · Earth-Science Reviews · doi:10.1016/j.earscirev.2020.103152 · Cited by 318
Davies, M. H., Mix, A. C., Stoner, J. S., Addison, J. A., Jaeger, J., Finney, B., & Wiest, J. (2011) · Paleoceanography · doi:10.1029/2010pa002051 · Cited by 107
Phase relationships between Antarctic and Greenland climate records
Steig, E. J., & Alley, R. B. (2002) · Annals of Glaciology · doi:10.3189/172756402781817211 · Cited by 80
Metadata
- Authors
- Blunier, T., Schwander, J., Stauffer, B., Stocker, T., Dällenbach, A., Indermühle, A., Tschumi, J., Chappellaz, J., Raynaud, D., & Barnola, J. ‐.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 1997-11
- Volume
- 24
- Issue
- 21
- Pages
- 2683-2686
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2095512616
- Cited by
- 203
- References
- 0
- FWCI
- 11.43
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Blunier, T., Schwander, J., Stauffer, B., Stocker, T., Dällenbach, A., Indermühle, A., Tschumi, J., Chappellaz, J., Raynaud, D., & Barnola, J. ‐. (1997). Timing of the Antarctic cold reversal and the atmospheric CO2 increase with respect to the Younger Dryas Event. Geophysical Research Letters. https://doi.org/10.1029/97gl02658
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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