气候变化领域集成服务门户(CCPortal): The Response of Daily and Sub-Daily Extreme Precipitations to Changes in Surface and Dew-Point Temperatures

CCPortal

DOI	10.1029/2021JD034972
	The Response of Daily and Sub-Daily Extreme Precipitations to Changes in Surface and Dew-Point Temperatures
	Pérez Bello A.; Mailhot A.; Paquin D.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:16
英文摘要	Extreme precipitation events are expected to increase in frequency and intensity in the future climate, but the magnitude of these changes remains uncertain. The relationship between extreme precipitation and the surface temperature has been investigated to more robustly assess projected increases in extreme precipitation considering that projected temperature is more adequately simulated. Relationships between extreme precipitation (daily and sub-daily) and surface air temperature (SAT) or surface dew-point temperature (SDPT) are analyzed in this study using the 50-members ensemble from the fifth version of the Canadian Regional Climate Model covering the Northeastern North America region over the period 1956–2099. Temperature-precipitation scaling rates (TPSRs) were estimated using local SAT and SDPT seasonal anomalies as covariate over both periods for 2–100-year extreme precipitation events and durations ranging from 1 to 24 h. Contrasting responses were obtained when using SAT or SDPT, especially in the southern part of the domain. Median scaling rates over the entire domain for SDPT were close to the Clausius-Clapeyron scaling ((Formula presented.) °C) while they were much smaller for SAT and even negative in southern regions, showing that moisture availability is a key factor for these regions. TPSR based on SDPT is also more robustly constrained and can be used to estimate changes in short-duration extreme precipitation in a future period from TPSR in the historical period over a large part of the domain. © 2021. The Authors.
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237108
作者单位	Center Eau Terre Environnement (INRS-ETE) Québec, Institut National de la Recherche Scientifique, Québec City, QC, Canada; Consortium on Regional Climatology and Adaptation to Climate Change (Ouranos), Montréal, QC, Canada
推荐引用方式 GB/T 7714	Pérez Bello A.,Mailhot A.,Paquin D.. The Response of Daily and Sub-Daily Extreme Precipitations to Changes in Surface and Dew-Point Temperatures[J],2021,126(16).
APA	Pérez Bello A.,Mailhot A.,&Paquin D..(2021).The Response of Daily and Sub-Daily Extreme Precipitations to Changes in Surface and Dew-Point Temperatures.Journal of Geophysical Research: Atmospheres,126(16).
MLA	Pérez Bello A.,et al."The Response of Daily and Sub-Daily Extreme Precipitations to Changes in Surface and Dew-Point Temperatures".Journal of Geophysical Research: Atmospheres 126.16(2021).