| DOI: | 10.5194/cp-12-1919-2016
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| Scopus记录号: | 2-s2.0-84989959916
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| 论文题名: | Impact of meltwater on high-latitude early Last Interglacial climate |
| 作者: | Stone E.J.; Capron E.; Lunt D.J.; Payne A.J.; Singarayer J.S.; Valdes P.J.; Wolff E.W.
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| 刊名: | Climate of the Past
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| ISSN: | 18149324
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| 出版年: | 2016
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| 卷: | 12, 期:9 | | 起始页码: | 1919
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| 结束页码: | 1932
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| 语种: | 英语
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| 英文摘要: | Recent data compilations of the early Last Interglacial period have indicated a bipolar temperature response at 130 ka, with colder-than-present temperatures in the North Atlantic and warmer-than-present temperatures in the Southern Ocean and over Antarctica. However, climate model simulations of this period have been unable to reproduce this response, when only orbital and greenhouse gas forcings are considered in a climate model framework. Using a full-complexity general circulation model we perform climate model simulations representative of 130 ka conditions which include a magnitude of freshwater forcing derived from data at this time. We show that this meltwater from the remnant Northern Hemisphere ice sheets during the glacial-interglacial transition produces a modelled climate response similar to the observed colder-than-present temperatures in the North Atlantic at 130 ka and also results in warmer-than-present temperatures in the Southern Ocean via the bipolar seesaw mechanism. Further simulations in which the West Antarctic Ice Sheet is also removed lead to warming in East Antarctica and the Southern Ocean but do not appreciably improve the model-data comparison. This integrated model-data approach provides evidence that Northern Hemisphere freshwater forcing is an important player in the evolution of early Last Interglacial climate. © Author(s) 2016. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/48969
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| Appears in Collections: | 气候变化与战略
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| Recommended Citation: | |
Stone E.J.,Capron E.,Lunt D.J.,et al. Impact of meltwater on high-latitude early Last Interglacial climate[J]. Climate of the Past,2016-01-01,12(9)
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