气候变化领域集成服务门户(CCPortal): Resolving Inconsistencies in Extreme Precipitation-Temperature Sensitivities

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DOI	10.1029/2020GL089723
	Resolving Inconsistencies in Extreme Precipitation-Temperature Sensitivities
	Visser J.B.; Wasko C.; Sharma A.; Nathan R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	Extreme precipitation events are intensifying with increasing temperatures. However, observed extreme precipitation-temperature sensitivities have been found to vary significantly across the globe. Here we show that negative sensitivities found in previous studies are the result of limited consideration of within-day temperature variations due to precipitation. We find that short-duration extreme precipitation can be better described by subdaily atmospheric conditions before the start of storm events, resulting in positive sensitivities with increased consistency with the Clausius-Clapeyron relation across a wide range of climatic regions. Contrary to previous studies that advocate that dew point temperature drives precipitation, dry-bulb temperature is found to be a sufficient descriptor of precipitation variability. We argue that analysis methods for estimating extreme precipitation-temperature sensitivities should account for the strong and prolonged cooling effect of intense precipitation, as well as for the intermittent nature of precipitation. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Sensitivity analysis; Atmospheric conditions; Clausius Clapeyron relation; Extreme precipitation; Extreme precipitation events; Increasing temperatures; Intense precipitation; Precipitation variability; Temperature variation; Precipitation (meteorology); air temperature; atmospheric convection; cooling; dew point; extreme event; precipitation (climatology); storm surge
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169706
作者单位	School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW, Australia; Department of Infrastructure Engineering, University of Melbourne, Parkville, VIC, Australia
推荐引用方式 GB/T 7714	Visser J.B.,Wasko C.,Sharma A.,et al. Resolving Inconsistencies in Extreme Precipitation-Temperature Sensitivities[J],2020,47(18).
APA	Visser J.B.,Wasko C.,Sharma A.,&Nathan R..(2020).Resolving Inconsistencies in Extreme Precipitation-Temperature Sensitivities.Geophysical Research Letters,47(18).
MLA	Visser J.B.,et al."Resolving Inconsistencies in Extreme Precipitation-Temperature Sensitivities".Geophysical Research Letters 47.18(2020).