气候变化领域集成服务门户(CCPortal): Using the evaporative stress index to monitor flash drought in Australia

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DOI	10.1088/1748-9326/ab2103
	Using the evaporative stress index to monitor flash drought in Australia
	Nguyen H.; Wheeler M.C.; Otkin J.A.; Cowan T.; Frost A.; Stone R.
发表日期	2019
ISSN	17489318
卷号	14 期号:6
英文摘要	Flash drought is a term and concept that has gained increasing attention in the research literature and media since it was first coined in the United States in the early 2000s to describe a drought that has undergone rapid intensification. In Australia the term has recently been used in reference to the 2017/18 drought in eastern Australia. Due to its rapid intensification, the impacts of flash droughts will likely occur too quickly for many of the usual drought-coping mechanisms to be deployed. This study proposes the use of the evaporative stress index (ESI), the standardized anomaly of the actual evapotranspiration to potential evapotranspiration ratio, to identify flash droughts in Australia computed using daily outputs from the Bureau of Meteorology's land surface water balance model AWRA-L. The case study of the January 2018 flash drought in eastern Australia is used to assess and demonstrate the suitability of the ESI. Results show that the ESI accurately highlighted the event and offered potential for flash drought pre-warning by a few weeks. In addition, the availability of long term high-resolution outputs from AWRA-L offers the ability to investigate multiple flash drought events in detail for greater understanding and to inform stakeholders. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Australia; evaporative stress index; Flash drought
语种	英语
scopus关键词	Evapotranspiration; Surface waters; Actual evapotranspiration; Australia; Bureau of meteorologies; Coping mechanisms; High-resolution output; Potential evapotranspiration; Rapid intensification; Stress indices; Drought
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/154545
作者单位	Bureau of Meteorology, Melbourne, Australia; Cooperative Institute for Meteorological Satellite Studies, Space Science and Engineering Center, University of Wisconsin-Madison, United States; Centre for Applied Climate Sciences, University of Southern Queensland, Australia
推荐引用方式 GB/T 7714	Nguyen H.,Wheeler M.C.,Otkin J.A.,et al. Using the evaporative stress index to monitor flash drought in Australia[J],2019,14(6).
APA	Nguyen H.,Wheeler M.C.,Otkin J.A.,Cowan T.,Frost A.,&Stone R..(2019).Using the evaporative stress index to monitor flash drought in Australia.Environmental Research Letters,14(6).
MLA	Nguyen H.,et al."Using the evaporative stress index to monitor flash drought in Australia".Environmental Research Letters 14.6(2019).