The Taylor Dome Antarctic 18O Record and Globally Synchronous Changes in Climate
- 1 November 2001
- journal article
- Published by Cambridge University Press (CUP) in Quaternary Research
- Vol. 56 (3) , 289-298
- https://doi.org/10.1006/qres.2001.2276
Abstract
The 18O/16O profile of a 554-m long ice core through Taylor Dome, Antarctica, shows the climate variability of the last glacial–interglacial cycle in detail and extends at least another full cycle. Taylor Dome shares the main features of the Vostok record, including the early climatic optimum with later cool phase of the last interglacial period in Antarctica. Taylor Dome δ18O fluctuations are more abrupt and larger than those at Vostok and Byrd Station, although still less pronounced than those of the Greenland GISP2 and GRIP records. The influence of the Atlantic thermohaline circulation on regional ocean heat transport explains the partly “North Atlantic” character of this Antarctic record. Under full glacial climate (marine isotope stage 4, late stage 3, and stage 2), this marine influence diminished and Taylor Dome became more like Vostok. Varying degrees of marine influence produce climate heterogeneity within Antarctica, which may account for conflicting evidence regarding the relative phasing of Northern and Southern Hemisphere climate change.Keywords
This publication has 59 references indexed in Scilit:
- North Pacific response to millennial‐scale changes in ocean circulation over the last 60 kyrPaleoceanography and Paleoclimatology, 2001
- The transition from the Last Glacial Period in inland and near‐coastal AntarcticaGeophysical Research Letters, 2000
- On the origin and timing of rapid changes in atmospheric methane during the Last Glacial PeriodGlobal Biogeochemical Cycles, 2000
- Abrupt climate changes: from the past to the future - a reviewInternational Journal of Earth Sciences, 1999
- Ice Age storm trajectories inferred from radar stratigraphy at Taylor Dome, AntarcticaGeophysical Research Letters, 1998
- Paleocean circulation during the Last Deglaciation: A bipolar seesaw?Paleoceanography and Paleoclimatology, 1998
- Oxygen 18/16 variability in Greenland snow and ice with 10−3‐ to 105‐year time resolutionJournal of Geophysical Research: Oceans, 1997
- Timing of the Antarctic cold reversal and the atmospheric CO2 increase with respect to the Younger Dryas EventGeophysical Research Letters, 1997
- Rapid changes in surface and deep water conditions at the Faeroe Margin during the last 58,000 yearsPaleoceanography and Paleoclimatology, 1996
- Variations in Atlantic surface ocean paleoceanography, 50°‐80°N: A time‐slice record of the last 30,000 yearsPaleoceanography and Paleoclimatology, 1995