Climate Change During the Last Deglaciation in Antarctica

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.

[1]  T. Nilsson.  The Pleistocene: Geology and Life in the Quaternary Ice Age , 1983 .

[2]  W. R. Peltier,et al.  Ice in the Climate System , 1993 .

[3]  P. Bloomfield,et al.  The Atmosphere During the Younger Dryas , 1993, Science.

[4]  Jan T. Heine.  A reevaluation of the evidence for a Younger Dryas climatic reversal in the tropical Andes , 1993 .

[5]  A. Mcintyre,et al.  The North Atlantic Ocean during the last deglaciation , 1981 .

[6]  G. W. Lamorey,et al.  The ‘flickering switch’ of late Pleistocene climate change , 1993, Nature.

[7]  J. Brennecke,et al.  Supercritical fluid engineering science : fundamentals and applications , 1992 .

[8]  P. Bloomfield,et al.  Changes in Atmospheric Circulation and Ocean Ice Cover over the North Atlantic During the Last 41,000 Years , 1994, Science.

[9]  G. Denton,et al.  Younger Dryas Age Advance of Franz Josef Glacier in the Southern Alps of New Zealand , 1994, Science.

[10]  A. Royer,et al.  Ice age aerosol content from East Antarctic ice core samples and past wind strength , 1981, Nature.

[11]  J. Jouzel,et al.  The two-step shape and timing of the last deglaciation in Antarctica , 1995 .

[12]  F. Gasse.  Evolution of Lake Abhé (Ethiopia and TFAI), from 70,000 b.p. , 1977, Nature.

[13]  F. Phillips,et al.  The last deglaciation: Absolute and radiocarbon chronologies , 1997 .

[14]  M. Stuiver,et al.  The GISP2 δ18O Climate Record of the Past 16,500 Years and the Role of the Sun, Ocean, and Volcanoes , 1995, Quaternary Research.

[15]  M. Barbetti,et al.  Climatic Change in Tasmania Inferred from a 1089-Year Tree-Ring Chronology of Huon Pine , 1991, Science.

[16]  R. Alley,et al.  Abrupt increase in Greenland snow accumulation at the end of the Younger Dryas event , 1993, Nature.

[17]  E. Boyle,et al.  Deglacial meltwater discharge, North Atlantic Deep Circulation, and abrupt climate change , 1991 .

[18]  J. Stager.  Environmental changes at Lake Cheshi, Zambia since 40,000 years B.P. , 1988 .

[19]  J. Overpeck,et al.  Climate change in the circum-North Atlantic region during the last deglaciation , 1989, Nature.

[20]  H. Enomoto.  Fluctuations of snow accumulation in the Antarctic and sea level pressure in the Southern Hemisphere in the last 100 years , 1991 .

[21]  M. Angelis,et al.  Sources of continental dust over Antarctica during the last glacial cycle , 1992 .