TY - JOUR
T1 - 800,000 Years of abrupt climate variability
AU - Barker, Stephen
AU - Knorr, Gregor
AU - Edwards, R. Lawrence
AU - Parrenin, Frédéric
AU - Putnam, Aaron E.
AU - Skinner, Luke C.
AU - Wolff, Eric
AU - Ziegler, Martin
PY - 2011/10/21
Y1 - 2011/10/21
N2 - We constructed an 800,000-year synthetic record of Greenland climate variability based on the thermal bipolar seesaw model. Our Greenland analog reproduces much of the variability seen in the Greenland ice cores over the past 100,000 years. The synthetic record shows strong similarity with the absolutely dated speleothem record from China, allowing us to place ice core records within an absolute timeframe for the past 400,000 years. Hence, it provides both a stratigraphic reference and a conceptual basis for assessing the long-term evolution of millennial-scale variability and its potential role in climate change at longer time scales. Indeed, we provide evidence for a ubiquitous association between bipolar seesaw oscillations and glacial terminations throughout the Middle to Late Pleistocene.
AB - We constructed an 800,000-year synthetic record of Greenland climate variability based on the thermal bipolar seesaw model. Our Greenland analog reproduces much of the variability seen in the Greenland ice cores over the past 100,000 years. The synthetic record shows strong similarity with the absolutely dated speleothem record from China, allowing us to place ice core records within an absolute timeframe for the past 400,000 years. Hence, it provides both a stratigraphic reference and a conceptual basis for assessing the long-term evolution of millennial-scale variability and its potential role in climate change at longer time scales. Indeed, we provide evidence for a ubiquitous association between bipolar seesaw oscillations and glacial terminations throughout the Middle to Late Pleistocene.
UR - http://www.scopus.com/inward/record.url?scp=80054840922&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80054840922&partnerID=8YFLogxK
U2 - 10.1126/science.1203580
DO - 10.1126/science.1203580
M3 - Article
C2 - 21903776
AN - SCOPUS:80054840922
SN - 0036-8075
VL - 334
SP - 347
EP - 351
JO - Science
JF - Science
IS - 6054
ER -