气候变化领域集成服务门户(CCPortal): The relationship of atmospheric air temperature and dew point temperature to extreme rainfall

CCPortal

DOI	10.1088/1748-9326/ab2a26
	The relationship of atmospheric air temperature and dew point temperature to extreme rainfall
	Bui A.; Johnson F.; Wasko C.
发表日期	2019
ISSN	17489318
卷号	14 期号:7
英文摘要	To understand the expected changes of extreme rainfalls due to climate change, the sensitivity of rainfall to surface temperature is often calculated. However, as surface temperatures may not be a good indicator of atmospheric moisture, an alternative is to use atmospheric temperatures, but the use of atmospheric temperatures lacks precedent. Using radiosonde atmospheric temperature data at a range of geopotential heights from 34 weather stations across Australia and its territories, we examine whether atmospheric temperature can improve our understanding of rainfallerature sensitivities. There is considerable variability in the calculated sensitivity when using atmospheric air temperature, while atmospheric dew point temperature showed robust positive sensitivities, similar to when surface dew point temperature measurements were used. We conclude atmospheric dew point temperature may be a promising candidate for future investigations of empirically calculated sensitivities of rainfall to temperature but does not appear superior to the use of surface dew point temperature measurements. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	atmospheric dew point; atmospheric temperature; Clausius-Clapeyron; climate change; precipitation; scaling
语种	英语
scopus关键词	Atmospheric thermodynamics; Climate change; Precipitation (chemical); Rain; Surface properties; Temperature measurement; Atmospheric moisture; Calculated sensitivity; Clausius-Clapeyron; Dew points; Dewpoint temperature; Geo-potential heights; scaling; Surface temperatures; Atmospheric temperature
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/154497
作者单位	School of Civil and Environmental Engineering, University of New South Wales, Sydney, Australia; Department of Infrastructure Engineering, University of Melbourne, Parkville, Australia
推荐引用方式 GB/T 7714	Bui A.,Johnson F.,Wasko C.. The relationship of atmospheric air temperature and dew point temperature to extreme rainfall[J],2019,14(7).
APA	Bui A.,Johnson F.,&Wasko C..(2019).The relationship of atmospheric air temperature and dew point temperature to extreme rainfall.Environmental Research Letters,14(7).
MLA	Bui A.,et al."The relationship of atmospheric air temperature and dew point temperature to extreme rainfall".Environmental Research Letters 14.7(2019).