Recent warming reverses long-term arctic cooling
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Recent warming reverses long-term arctic cooling. / kaufman, D.S.; Vinther, Bo Møllesøe.
In: Science, Vol. 325, No. 5945, 2009, p. 1236-1239.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Recent warming reverses long-term arctic cooling
AU - kaufman, D.S.
AU - Vinther, Bo Møllesøe
PY - 2009
Y1 - 2009
N2 - The temperature history of the first millennium C.E. is sparsely documented, especially in the Arctic. We present a synthesis of decadally resolved proxy temperature records from poleward of 60°N covering the past 2000 years, which indicates that a pervasive cooling in progress 2000 years ago continued through the Middle Ages and into the Little Ice Age. A 2000-year transient climate simulation with the Community Climate System Model shows the same temperature sensitivity to changes in insolation as does our proxy reconstruction, supporting the inference that this long-term trend was caused by the steady orbitally driven reduction in summer insolation. The cooling trend was reversed during the 20th century, with four of the five warmest decades of our 2000-year-long reconstruction occurring between 1950 and 2000. Udgivelsesdato: 4 September
AB - The temperature history of the first millennium C.E. is sparsely documented, especially in the Arctic. We present a synthesis of decadally resolved proxy temperature records from poleward of 60°N covering the past 2000 years, which indicates that a pervasive cooling in progress 2000 years ago continued through the Middle Ages and into the Little Ice Age. A 2000-year transient climate simulation with the Community Climate System Model shows the same temperature sensitivity to changes in insolation as does our proxy reconstruction, supporting the inference that this long-term trend was caused by the steady orbitally driven reduction in summer insolation. The cooling trend was reversed during the 20th century, with four of the five warmest decades of our 2000-year-long reconstruction occurring between 1950 and 2000. Udgivelsesdato: 4 September
KW - Faculty of Science
U2 - 10.1126/science.1173983
DO - 10.1126/science.1173983
M3 - Journal article
VL - 325
SP - 1236
EP - 1239
JO - Science
JF - Science
SN - 0036-8075
IS - 5945
ER -
ID: 17394212