DOI: 10.1007/s00382-013-1849-y
Scopus记录号: 2-s2.0-84897572741
论文题名: The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate
作者: Davies F.J. ; Renssen H. ; Goosse H.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 42, 期: 2017-07-08 起始页码: 2099
结束页码: 2112
语种: 英语
英文关键词: Anthropogenic
; Arctic Ocean
; Freshwater balance
; Holocene thermal maximum
英文摘要: The Arctic freshwater cycle plays an important role in regulating regional and global climate. Current observations suggest that an intensification of the high-northern latitude hydrological cycle has caused a freshening of the Arctic and sub-Arctic seas, increasing the potential of weakening overturning strength in the Nordic seas, and reducing temperatures. It is not known if this freshening is a manifestation of the current anthropogenic warming and if the Arctic freshwater cycle has exhibited similar changes in the past, in particular as a response to naturally induced periods of warming, for example during the mid-Holocene hypsithermal. Thus, we have used an earth model of intermediate complexity, LOVECLIM, to investigate the response of the Arctic freshwater cycle, during two warm periods that evolved under different sets of forcings, the mid-Holocene and the twenty-first century. A combination of proxy reconstructions and modelling studies have shown these two periods to exhibit similar surface temperature anomalies, compared to the pre-industrial period, however, it has yet to be determined if the Arctic freshwater cycle and thus, the transport and redistribution of freshwater to the Arctic and the sub-Arctic seas, during these two warm periods, is comparable. Here we provide an overview that shows that the response of the Arctic freshwater cycle during the first half of the twenty-first century can be interpreted as an 'extreme' mid-Holocene hydrological cycle. Whilst for the remainder of the twenty-first century, the Arctic freshwater cycle and the majority of its components will likely transition into what can only be described as truly anthropogenic in nature. © 2013 Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54463
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth Sciences, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, Netherlands; Earth and Life Institute, Centre de recherches sur la terre et le climat Georges Lemaître, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
Recommended Citation:
Davies F.J.,Renssen H.,Goosse H.. The Arctic freshwater cycle during a naturally and an anthropogenically induced warm climate[J]. Climate Dynamics,2014-01-01,42(2017-07-08)