DOI: 10.1002/joc.5365
论文题名: Synoptic to large-scale drivers of minimum temperature variability in Australia – long-term changes
作者: Crimp S. ; Nicholls N. ; Kokic P. ; Risbey J.S. ; Gobbett D. ; Howden M.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e237
结束页码: e254
语种: 英语
英文关键词: blocking
; El Niño – Southern Oscillation
; minimum temperature variability
; southern annular mode
; spatial dominance
; subtropical ridge
Scopus关键词: Atmospheric pressure
; Tropics
; blocking
; Minimum temperatures
; Southern Annular Mode
; Southern oscillation
; spatial dominance
; Subtropical ridge
; Climatology
; air temperature
; annual variation
; atmospheric blocking
; El Nino-Southern Oscillation
; Southern Oscillation
; synoptic meteorology
; Australia
; New South Wales
; Victoria [Australia]
英文摘要: This study documents the importance, and changes in the importance, of a suite of synoptic to large-scale drivers of minimum temperature variability across the Australian region. The drivers investigated are the El Niño – Southern Oscillation (ENSO) as measured by the Southern Oscillation Index, atmospheric blocking, the Southern Annular Mode, and the position and intensity of the subtropical ridge. In most regions, individual drivers generally account for between about 5 and 10% of the interannual variability across Australia, although in some seasons and regions these drivers can collectively account for more than 60% of the observed variability. The amount of minimum temperature variance explained by individual drivers is highest in south-eastern Australia in summer (December–February), where the drivers collectively account for 67% of the variance, due primarily to the relationships with blocking and ENSO. The varying importance of the drivers of minimum temperature variability between seasons and between two discrete periods (i.e. 1960–1984 and 1985–2015) has been investigated. In the more recent period the intensity of the subtropical ridge has played a more important role in minimum temperature variability, particularly in the south-western and south-eastern parts of Australia in summer (December–February), with the position of the subtropical ridge a feature of greater importance over much of Victoria in spring (September–November). For the more recent period the intensity of the subtropical ridge and the southern annular mode have been more important drivers of minimum temperature variability for autumn (March–May) and winter (June–August), respectively, across southern New South Wales and northern Victoria. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116932
Appears in Collections: 气候减缓与适应
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作者单位: Climate Change Institute, The Australian National UniversityACT, Australia; School of Earth Atmosphere and Environment, Monash University, Melbourne, Australia; Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, Australia; Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation, Adelaide, Australia
Recommended Citation:
Crimp S.,Nicholls N.,Kokic P.,et al. Synoptic to large-scale drivers of minimum temperature variability in Australia – long-term changes[J]. International Journal of Climatology,2018-01-01,38