气候变化领域集成服务门户(CCPortal): Strong Intensification of Hourly Rainfall Extremes by Urbanization

CCPortal

DOI	10.1029/2020GL088758
	Strong Intensification of Hourly Rainfall Extremes by Urbanization
	Li Y.; Fowler H.J.; Argüeso D.; Blenkinsop S.; Evans J.P.; Lenderink G.; Yan X.; Guerreiro S.B.; Lewis E.; Li X.-F.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:14
英文摘要	Although observations and modeling studies show that heavy rainfall is increasing in many regions, how changes will manifest themselves on sub-daily timescales remains highly uncertain. Here, for the first time, we combine observational analysis and high-resolution modeling results to examine changes to extreme rainfall intensities in urbanized Kuala Lumpur, Malaysia. We find that hourly intensities of extreme rainfall have increased by ~35% over the last three decades, nearly 3 times more than in surrounding rural areas, with daily intensities showing much weaker increases. Our modeling results confirm that the urban heat island effect creates a more unstable atmosphere, increased vertical uplift and moisture convergence. This, combined with weak surface winds in the Tropics, causes intensification of rainfall extremes over the city, with reduced rainfall in the surrounding region. ©2020. The Authors.
英文关键词	Earth sciences; Geophysics; Extreme rainfall; Heavy rainfall; High-resolution models; Moisture convergence; Observational analysis; Rainfall extremes; Surrounding regions; Urban Heat Island Effects; Rain; extreme event; heat island; precipitation intensity; rainfall; rural area; urban area; urbanization; Kuala Lumpur
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/170070
作者单位	State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, China; School of Engineering, Newcastle University, Newcastle, United Kingdom; Physics Department, University of the Balearic Islands, Palma, Spain; ARC Centre of Excellence for Climate Extremes and Climate Change Research Centre, Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia; Royal Netherlands Meteorological Institute, De Bilt, Netherlands
推荐引用方式 GB/T 7714	Li Y.,Fowler H.J.,Argüeso D.,et al. Strong Intensification of Hourly Rainfall Extremes by Urbanization[J],2020,47(14).
APA	Li Y..,Fowler H.J..,Argüeso D..,Blenkinsop S..,Evans J.P..,...&Li X.-F..(2020).Strong Intensification of Hourly Rainfall Extremes by Urbanization.Geophysical Research Letters,47(14).
MLA	Li Y.,et al."Strong Intensification of Hourly Rainfall Extremes by Urbanization".Geophysical Research Letters 47.14(2020).