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Does the Trigger for Abrupt Climate Change Reside in the Ocean or in the Atmosphere?
Abstract
Two hypotheses have been put forward to explain the large and abrupt climate changes that punctuated glacial time. One attributes such changes to reorganizations of the ocean's thermohaline circulation and the other to changes in tropical atmosphere-ocean dynamics. In an attempt to distinguish between these hypotheses, two lines of evidence are examined. The first involves the timing of the freshwater injections to the northern Atlantic that have been suggested as triggers for the global impacts associated with the Younger Dryas and Heinrich events. The second has to do with evidence for precursory events associated with the Heinrich ice-rafted debris layers in the northern Atlantic and with the abrupt Dansgaard-Oeschger warmings recorded in the Santa Barbara Basin.
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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
14 C Activity and Global Carbon Cycle Changes over the Past 50,000 Years
Hughen, K., Lehman, S., Southon, J., Overpeck, J., Marchal, O., Herring, C., & Turnbull, J. (2004) · Science · doi:10.1126/science.1090300 · Cited by 492
Increasing Australian–Indonesian monsoon rainfall linked to early Holocene sea-level rise
Griffiths, M. L., Drysdale, R. N., Gagan, M. K., Zhao, J.-X., Ayliffe, L. K., Hellstrom, J. C., Hantoro, W. S., Frisia, S., Feng, Y.-X., Cartwright, I., et al. (2009) · Nature Geoscience · doi:10.1038/ngeo605 · Cited by 353
Ice sheet sources of sea level rise and freshwater discharge during the last deglaciation
Carlson, A. E., & Clark, P. U. (2012) · Reviews of Geophysics · doi:10.1029/2011rg000371 · Cited by 249
Metadata
- Authors
- Broecker, W. S.
- Venue
- Science
- Published
- 2003-06-06
- Volume
- 300
- Issue
- 5625
- Pages
- 1519-1522
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2124299021
- Cited by
- 348
- References
- 0
- FWCI
- 21.48
- Type
- journal article
- Language
- en
- Open access
- closed
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