Publication Date:
2009-07-18
Description:
We conducted the first synchronously coupled atmosphere-ocean general circulation model simulation from the Last Glacial Maximum to the Bolling-Allerod (BA) warming. Our model reproduces several major features of the deglacial climate evolution, suggesting a good agreement in climate sensitivity between the model and observations. In particular, our model simulates the abrupt BA warming as a transient response of the Atlantic meridional overturning circulation (AMOC) to a sudden termination of freshwater discharge to the North Atlantic before the BA. In contrast to previous mechanisms that invoke AMOC multiple equilibrium and Southern Hemisphere climate forcing, we propose that the BA transition is caused by the superposition of climatic responses to the transient CO(2) forcing, the AMOC recovery from Heinrich Event 1, and an AMOC overshoot.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Z -- Otto-Bliesner, B L -- He, F -- Brady, E C -- Tomas, R -- Clark, P U -- Carlson, A E -- Lynch-Stieglitz, J -- Curry, W -- Brook, E -- Erickson, D -- Jacob, R -- Kutzbach, J -- Cheng, J -- New York, N.Y. -- Science. 2009 Jul 17;325(5938):310-4. doi: 10.1126/science.1171041.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Key Laboratory of Meteorological Disaster, Nanjing University of Information Science and Technology, Nanjing, 210044, China. zliu3@wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19608916" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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