| DOI: | 10.1002/2016GL070356
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| 论文题名: | Abrupt Bølling warming and ice saddle collapse contributions to the Meltwater Pulse 1a rapid sea level rise |
| 作者: | Gregoire L.J.; Otto-Bliesner B.; Valdes P.J.; Ivanovic R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8698
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| EISSN: | 1944-8429
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| 出版年: | 2016
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| 卷: | 43, 期:17 | | 起始页码: | 9130
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| 结束页码: | 9137
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| 语种: | 英语
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| 英文关键词: | abrupt warming
; Bølling
; Meltwater Pulse 1a
; North American ice sheet
; sea level rise
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| Scopus关键词: | Climate change
; Climate models
; Glaciers
; Sea level
; Uncertainty analysis
; Abrupt climate change
; Abrupt warming
; Climate simulation
; Global mean sea levels
; Ice sheet
; Meltwater pulse 1a
; Model uncertainties
; Sea level rise
; Ice
; climate modeling
; climate variation
; collapse structure
; ice sheet
; meltwater
; perturbation
; sea level change
; uncertainty analysis
; warming
; North America
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| 英文摘要: | Elucidating the source(s) of Meltwater Pulse 1a, the largest rapid sea level rise caused by ice melt (14–18 m in less than 340 years, 14,600 years ago), is important for understanding mechanisms of rapid ice melt and the links with abrupt climate change. Here we quantify how much and by what mechanisms the North American ice sheet could have contributed to Meltwater Pulse 1a, by driving an ice sheet model with two transient climate simulations of the last 21,000 years. Ice sheet perturbed physics ensembles were run to account for model uncertainties, constraining ice extent and volume with reconstructions of 21,000 years ago to present. We determine that the North American ice sheet produced 3–4 m global mean sea level rise in 340 years due to the abrupt Bølling warming, but this response is amplified to 5–6 m when it triggers the ice sheet saddle collapse. ©2016. The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987771060&doi=10.1002%2f2016GL070356&partnerID=40&md5=3ca81ab64bcbff3037a28291f1330759
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| Citation statistics: |
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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/9661
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | School of Earth and Environment, University of Leeds, Leeds, United Kingdom
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| Recommended Citation: | |
Gregoire L.J.,Otto-Bliesner B.,Valdes P.J.,et al. Abrupt Bølling warming and ice saddle collapse contributions to the Meltwater Pulse 1a rapid sea level rise[J]. Geophysical Research Letters,2016-01-01,43(17).
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