DOI: 10.1002/2016GL069243
论文题名: Deep time evidence for climate sensitivity increase with warming
作者: Shaffer G. ; Huber M. ; Rondanelli R. ; Pepke Pedersen J.O.
刊名: Geophysical Research Letters
ISSN: 0094-9698
EISSN: 1944-9429
出版年: 2016
卷: 43, 期: 12 起始页码: 6538
结束页码: 6545
语种: 英语
英文关键词: carbon cycle
; climate sensitivity
; paleoclimate
Scopus关键词: Carbon dioxide
; Gas emissions
; Global warming
; Greenhouse effect
; Greenhouse gases
; Anthropogenic greenhouse gas emissions
; Carbon cycles
; Climate feedbacks
; Climate sensitivity
; Last Glacial Maximum
; Paleocene-eocene thermal maximums
; Paleoclimates
; Possible futures
; Climate models
; anthropogenic effect
; carbon cycle
; carbon dioxide
; climate modeling
; Eocene
; estimation method
; future prospect
; global warming
; Last Glacial Maximum
; Paleocene
; paleoclimate
; sensitivity analysis
英文摘要: Future global warming from anthropogenic greenhouse gas emissions will depend on climate feedbacks, the effect of which is expressed by climate sensitivity, the warming for a doubling of atmospheric CO2 content. It is not clear how feedbacks, sensitivity, and temperature will evolve in our warming world, but past warming events may provide insight. Here we employ paleoreconstructions and new climate-carbon model simulations in a novel framework to explore a wide scenario range for the Paleocene-Eocene Thermal Maximum (PETM) carbon release and global warming event 55.8 Ma ago, a possible future warming analogue. We obtain constrained estimates of CO2 and climate sensitivity before and during the PETM and of the PETM carbon input amount and nature. Sensitivity increased from 3.3–5.6 to 3.7–6.5 K (Kelvin) into the PETM. When taken together with Last Glacial Maximum and modern estimates, this result indicates climate sensitivity increase with global warming. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84976892349&doi=10.1002%2f2016GL069243&partnerID=40&md5=9fcc8ef066e4ccdf18c7c77da538ec3c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10661
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: GAIA-Antarctica, Universidad de Magallanes, Punta Arenas, Chile
Recommended Citation:
Shaffer G.,Huber M.,Rondanelli R.,et al. Deep time evidence for climate sensitivity increase with warming[J]. Geophysical Research Letters,2016-01-01,43(12).