气候变化领域集成服务门户(CCPortal): Observed Climatological Relationships of Extreme Daily Precipitation Events With Precipitable Water and Vertical Velocity in the Contiguous United States

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DOI	10.1029/2019GL086721
	Observed Climatological Relationships of Extreme Daily Precipitation Events With Precipitable Water and Vertical Velocity in the Contiguous United States
	Kunkel K.E.; Stevens S.E.; Stevens L.E.; Karl T.R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:12
英文摘要	An analysis of 3,104 stations in the United States shows virtually every station exhibits a positive correlation between precipitable water (PW) and extreme daily precipitation (EP) with over one-third statistically significant. To first approximation, EP scales linearly with PW, but there is nonlinear scaling at the lower and upper ends of the PW distribution. On average, EP is amplified by twice the amount of PW, but there is substantial seasonal and spatial variability caused by dynamically forced vertical velocity with stations ranging from a one-to-one relationship to over three-to-one. These latter stations are generally found in elevated terrain or near coasts and in regions and seasons affected by strong synoptic-scale weather systems. The results also point to PW, not vertical velocity, as the key limiting factor in the most intense EP events. This has important implications for projecting changes of the most intense EP events in a warmer world. ©2020 The Authors.
英文关键词	Earth sciences; Geophysics; Daily precipitations; Non-linear scaling; Positive correlations; Precipitable water; Spatial variability; Upper-end; Vertical velocity; Weather systems; Velocity; elevation; extreme event; precipitation assessment; rainfall; regional climate; seasonality; spatial variation; synoptic meteorology; weather station; United States
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/170253
作者单位	North Carolina Institute for Climate Studies, North Carolina State University, Asheville, NC, United States; Climate and Weather, L.L.C, Mills River, NC, United States
推荐引用方式 GB/T 7714	Kunkel K.E.,Stevens S.E.,Stevens L.E.,et al. Observed Climatological Relationships of Extreme Daily Precipitation Events With Precipitable Water and Vertical Velocity in the Contiguous United States[J],2020,47(12).
APA	Kunkel K.E.,Stevens S.E.,Stevens L.E.,&Karl T.R..(2020).Observed Climatological Relationships of Extreme Daily Precipitation Events With Precipitable Water and Vertical Velocity in the Contiguous United States.Geophysical Research Letters,47(12).
MLA	Kunkel K.E.,et al."Observed Climatological Relationships of Extreme Daily Precipitation Events With Precipitable Water and Vertical Velocity in the Contiguous United States".Geophysical Research Letters 47.12(2020).