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Climate Change During the Last Deglaciation in Antarctica
1P. A. Mayewski, M. S. Twickler, S. I. Whitlow, Q. Yang, J. Thomas, K. Kreutz, Climate Change Research Center, Institute for the Study of Earth, Oceans, and Space, and Department of Earth Sciences, University of New Hampshire, Durham, NH 03824, USA. L. D. Meeker, Climate Change Research Center, Institute for the Study of Earth, Oceans, and Space, and Department of Mathematics, University of New Hampshire, Durham, NH 03824, USA. P. M. Grootes and E. J. Steig, Quaternary Research Center AK-60, University of Washington, Seattle, WA 98195, USA. D. L. Morse and E. D. Waddington, Geophysics Program, University of Washington, Seattle, WA 98195, USA. E. S. Saltzman, Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL 33149, USA. P.-Y. Whung, National Oceanic and Atmospheric Administration, Atlantic Oceanographic and Meteorological Laboratory, Ocean Chemistry Division, and Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL 33149, USA. K. C. Taylor, Water Resources Center, Desert Research Institute, University and Community College System of Nevada, Reno, NV 89506, USA.
Abstract:
Greenland ice core records provide clear evidence of rapid changes in climate in a variety of climate indicators. In this work, rapid climate change events in the Northern and Southern hemispheres are compared on the basis of an examination of changes in atmospheric circulation developed from two ice cores. High-resolution glaciochemical series, covering the period 10,000 to 16,000 years ago, from a central Greenland ice core and a new site in east Antarctica display similar variability. These findings suggest that rapid climate change events occur more frequently in Antarctica than previously demonstrated.
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