DOI: 10.1175/JCLI-D-13-00071.1
Scopus记录号: 2-s2.0-84896998820
论文题名: Broadening the spatial applicability of paleoclimate information-a case study for the murray-darling Basin, Australia
作者: Ho M. ; Verdon-Kidd D.C. ; Kiem A.S. ; Drysdale R.N.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 7 起始页码: 2477
结束页码: 2495
语种: 英语
Scopus关键词: Principal component analysis
; Rain
; Environmental change
; Hydroclimatic variability
; Murray-Darling Basin
; Murray-darling basins (MDB)
; Optimal interpolation
; Paleoclimate records
; Rainfall variability
; Strategic locations
; Risk assessment
; correlation
; interpolation
; paleoclimate
; principal component analysis
; proxy climate record
; rainfall
; reconstruction
; Australia
; Murray-Darling Basin
英文摘要: Recent advances in the collection and analysis of paleoclimate data have provided significant insights into preinstrumental environmental events and processes, enabling a greater understanding of long-term environmental change and associated hydroclimatic risks. Unfortunately, it is often the case that there is a dearth of readily available paleoclimate data from regions where such insights and long-term data are most needed. The Murray-Darling basin (MDB), known as Australia's "food bowl," is an example of such a region where currently there are very limited in situ paleoclimate data available. While previous studies have utilized paleoclimate proxy records of large-scale climate mechanisms to infer preinstrumental MDB hydroclimatic variability, there is a lack of studies that utilize Australian terrestrial proxy records to garner similar information. Given the immediate need for improved understanding of MDB hydroclimatic variability, this paper identifies key locations in Australia where existing and as yet unrealized paleoclimate records will be most useful in reconstructing such information. To identify these key locations, rainfall relationships between MDB and non-MDB locations were explored through correlations and principal component analysis. An objective analysis using optimal interpolation was then used to pinpoint the most strategic locations to further develop proxy records and gain insights into the benefits of obtaining this additional information. The findings reveal that there is potential for the future assembly of high-resolution paleoclimate records in Australia capable of informing MDB rainfall variability, in particular southeast Australia and central-northern Australia. This study highlights the need for further investment in the development of these potential proxy sources to subsequently enable improved assessments of long-term hydroclimatic risks. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51207
Appears in Collections: 气候变化事实与影响
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作者单位: Environmental and Climate Change Research Group, Faculty of Science and Information Technology, The University of Newcastle, Callaghan NSW, Australia; Department of Resource Management and Geography, The University of Melbourne, Melbourne, VIC, Australia; Laboratoire EDYTEM-UMR4204, Université de Savoie, Le Bourget-du-Lac, France
Recommended Citation:
Ho M.,Verdon-Kidd D.C.,Kiem A.S.,et al. Broadening the spatial applicability of paleoclimate information-a case study for the murray-darling Basin, Australia[J]. Journal of Climate,2014-01-01,27(7)