DOI: 10.1007/s00382-016-3365-3
Scopus记录号: 2-s2.0-84989162396
论文题名: Links between central Greenland stable isotopes, blocking and extreme climate variability over Europe at decadal to multidecadal time scales
作者: Rimbu N. ; Lohmann G. ; Werner M. ; Ionita M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 49, 期: 2017-01-02 起始页码: 649
结束页码: 663
语种: 英语
英文关键词: Atmospheric blocking
; Extreme temperatures
; Greenland ice cores
; Stable isotopes
英文摘要: The link between central Greenland stable oxygen isotopes, atmospheric blocking frequency and cold temperature extremes at decadal to multidecadal time scales is investigated using observed and proxy data as well as model experiments. A composite analysis reveals that positive stable isotope anomalies in central Greenland are associated with enhanced blocking activity in the Atlantic European region. Several indices of blocking activity in the Atlantic European region are higher correlated with central Greenland stable isotope time series than with the North Atlantic Oscillation indices both in observations and model simulation. Furthermore, the blocking frequency anomaly pattern associated with central Greenland stable isotope variability is similar to the blocking anomaly pattern associated with the Atlantic Multidecadal Oscillation. A composite analysis reveals that stable isotope variations in central Greenland are related to a large-scale pattern in the frequency of extreme low temperature events with significant positive anomalies over Europe and a southwest to northeast dipolar pattern over Asia. During observational period central Greenland isotope records, blocking and extreme temperature indices over Europe show enhanced variability 10–30 and 50–70 years. Similar quasi-periodicities dominate the spectrum of central Greenland isotope variability during the last millennium. We argue that long-term variations of climate extreme indices over Europe and Asia, as derived from observational data, can be put into a long-term perspective using central Greenland stable isotope ice core records. © 2016, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53162
Appears in Collections: 过去全球变化的重建
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作者单位: Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bussestrasse 24, Bremerhaven, Germany; MARUM—Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
Recommended Citation:
Rimbu N.,Lohmann G.,Werner M.,et al. Links between central Greenland stable isotopes, blocking and extreme climate variability over Europe at decadal to multidecadal time scales[J]. Climate Dynamics,2017-01-01,49(2017-01-02)