DOI: 10.1175/JCLI-D-12-00082.1
Scopus记录号: 2-s2.0-84874881356
论文题名: A historical perspective on Southeastern Australian rainfall since 1865 using the instrumental record
作者: Timbal B. ; Fawcett R.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 4 起始页码: 1112
结束页码: 1129
语种: 英语
Scopus关键词: Australian rainfall
; Decadal variability
; Historical perspective
; Millennium droughts
; Monthly average rainfalls
; Monthly rainfalls
; Rainfall analysis
; South-eastern Australia
; Drought
; Military operations
; Rain
; decadal variation
; drought
; historical perspective
; nineteenth century
; rainfall
; raingauge
; Australia
英文摘要: The instrumental record for rainfall across Australia is regarded as being sufficiently reliable to produce national monthly gridded rainfall analyses from 1900 onward. Prior to 1900, the rainfall gauge network is much sparser. The possibility of using those nineteenth-century observations that do exist to construct an estimate of rainfall across the southeastern part of Australia (SEA) is explored by constructing a network based on 11 locations comprising either single observing sites or composites of nearby observing sites with long continuous records. It is shown that, during the period 1900-2010, the monthly rainfall reconstruction based on this network captures 98% of the variability of SEA monthly average rainfall. This network, which extends back to 1865, provides a useful view of the Federation Drought, making a comparison possible with other long-term droughts observed in SEA, around the time of the Second World War and the Millennium Drought from 1997 to 2009. A comparison of these three historical low-rainfall periods was conducted using the drought-depth-duration criteria: the ongoing decline in southeastern Australia is seen as being notably worse than the previous two historical droughts. The network also provides an insight into the decadal variability of SEA rainfall in the later part of the nineteenth century; it includes a high peak in the 1870s comparable to similar wet decadal peaks in the 1950s and 1970s. The implications of this longer perspective on the decadal variability in southeastern Australia in light of the current understanding of the ongoing rainfall deficit are discussed. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52012
Appears in Collections: 气候变化事实与影响
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作者单位: Centre for Australian Weather and Climate Research, Bureau of Meteorology, Docklands, Melbourne, VIC, Australia
Recommended Citation:
Timbal B.,Fawcett R.. A historical perspective on Southeastern Australian rainfall since 1865 using the instrumental record[J]. Journal of Climate,2013-01-01,26(4)