DOI: 10.1007/s00382-013-1952-0
Scopus记录号: 2-s2.0-84906774328
论文题名: Teleconnections and predictive characteristics of Australian seasonal rainfall
作者: Frederiksen C.S. ; Zheng X. ; Grainger S.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期: 2017-05-06 起始页码: 1381
结束页码: 1408
语种: 英语
英文关键词: Atmospheric circulation
; Australian rainfall
; Climatic noise
; Climatic signal
; Coupled modes of variability
; Teleconnections
英文摘要: A new methodology is proposed that allows patterns of interannual covariability, or teleconnections, between the intraseasonal and slow components of seasonal mean Australian rainfall and the corresponding components in the Southern Hemisphere atmospheric circulation to be estimated. In all seasons, the dominant rainfall-circulation teleconnections in the intraseasonal component are shown to have the characteristic features associated with well-known intraseasonal dynamical and statistical atmospheric modes and their relationship with rainfall. Thus, for example, there are patterns of interannual covariability that reflect rainfall relationships with the intraseasonal Southern Annular Mode, the Madden-Julian Oscillation and wavenumber 3 and 4 intraseasonal modes of variability. The predictive characteristics of the atmospheric circulation-rainfall relationship are shown to reside with the slow components. In all seasons, we find rainfall-circulation teleconnections in the slow components related to the El Niño-Southern Oscillation. Each season also has a coupled mode, with a statistically significant trend in the time series of the atmospheric component that appears to be related to recent observed trends in rainfall. The slow Southern Annular Mode also features in association with southern Australian rainfall, especially during austral winter and spring. There is also evidence of an influence of Indian Ocean sea surface temperature variability on rainfall in southeast Australia during austral winter and spring. © 2013 Springer-Verlag Berlin Heidelberg. 资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54613
Appears in Collections: 过去全球变化的重建
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作者单位: Centre for Australian Weather and Climate Research, Bureau of Meteorology, Melbourne, Australia; College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
Recommended Citation:
Frederiksen C.S.,Zheng X.,Grainger S.. Teleconnections and predictive characteristics of Australian seasonal rainfall[J]. Climate Dynamics,2014-01-01,43(2017-05-06)