气候变化领域集成服务门户(CCPortal): Exploring the stationarity of australian temperature, precipitation and pan evaporation records over the last century

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DOI	10.1088/1748-9326/ab545c
	Exploring the stationarity of australian temperature, precipitation and pan evaporation records over the last century
	Ukkola A.M.; Roderick M.L.; Barker A.; Pitman A.J.
发表日期	2019
ISSN	17489318
卷号	14 期号:12
英文摘要	Australia has experienced regional climate trends over recent decades with consequences for agriculture and water management. We investigate the statistical significance of these trends at annual and seasonal scales using the concept of stationarity. Using long-term high quality regional-scale observations of temperature, precipitation and pan evaporation (a measure of atmospheric evaporative demand), we find that despite highly significant increases in temperature that are non-stationary, few regions of Australia have experienced annual or seasonal changes in precipitation or pan evaporation that are outside the range of observed variability over the last century. Despite a common assumption of increasing water demand under a warming climate, atmospheric evaporative demand (as measured by pan evaporation) largely remains unchanged. This is because evaporative demand depends strongly on factors other than temperature. Similarly, seasonal and annual precipitation over the last century is found to be stationary in most (but not all) regions. These findings suggest that the Australian precipitation has largely remained within the bounds of observed variability to date and emphasises the need to better account for variability in water resource management. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Australia; Climate change; Hydroclimate; Stationarity
语种	英语
scopus关键词	Climate change; Evaporation; Global warming; Water management; Annual precipitation; Australia; Evaporative demands; Hydroclimate; Regional climate; Stationarity; Statistical significance; Waterresource management; Atmospheric temperature; climate change; economic aspects of water; evaporation; precipitation (chemistry); regional climate; warming; water demand; water management; water resource; Australia
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154294
作者单位	Arc Centre of Excellence for Climate Extremes and Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia; Arc Centre of Excellence for Climate Extremes and Climate Change Research Centre, University of New South Wales, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Ukkola A.M.,Roderick M.L.,Barker A.,et al. Exploring the stationarity of australian temperature, precipitation and pan evaporation records over the last century[J],2019,14(12).
APA	Ukkola A.M.,Roderick M.L.,Barker A.,&Pitman A.J..(2019).Exploring the stationarity of australian temperature, precipitation and pan evaporation records over the last century.Environmental Research Letters,14(12).
MLA	Ukkola A.M.,et al."Exploring the stationarity of australian temperature, precipitation and pan evaporation records over the last century".Environmental Research Letters 14.12(2019).