气候变化领域集成服务门户(CCPortal): Urbanization Impact on Regional Wind Stilling: A Modeling Study in the Beijing-Tianjin-Hebei Region of China

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DOI	10.1029/2020JD033132
	Urbanization Impact on Regional Wind Stilling: A Modeling Study in the Beijing-Tianjin-Hebei Region of China
	Wang J.; Feng J.; Yan Z.; Zha J.
发表日期	2020
ISSN	2169897X
卷号	125 期号:20
英文摘要	Prominent slowdown in near-surface wind speed (NSWS) has been observed in the Beijing-Tianjin-Hebei (BTH) region of China, which has important implications for regional haze mitigation and wind energy production. Other than large-scale climatic variation, this decline is suspected of being linked to the impact of urbanization. Based on nested high-resolution simulations using the Weather Research and Forecasting model, we assessed quantitatively the respective roles of urban development and anthropogenic heat (AH) in regional NSWS change over the BTH region from a climatological perspective. The contribution of urbanization to station average annual NSWS over 1980–2018 was estimated to be approximately −0.37 m s−1, with the largest decline exceeding −1.0 m s−1 in some highly urbanized areas. The effect of urban development on NSWS was found partly offset by the AH effect. Urbanization-induced NSWS decrease was most remarkable in spring and early in the night. Urbanization impacts on NSWS were more remarkable when regional prevailing winds were northeasterly and northwesterly. Further analysis showed that the simulated urbanization-induced decreases in NSWS were highly correlated with the background regional NSWS levels. Our simulation results indicated that urbanization was an important but not a dominant cause of the observed regional wind stilling, even in such a rapidly urbanizing region, although it had remarkable influence on local NSWS in highly urbanized areas. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	anthropogenic heat; built-up area; high-resolution simulation; near-surface wind; urbanization
语种	英语
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/185689
作者单位	Key Laboratory of Regional Climate-Environment for Temperate East Asia (RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Wang J.,Feng J.,Yan Z.,et al. Urbanization Impact on Regional Wind Stilling: A Modeling Study in the Beijing-Tianjin-Hebei Region of China[J],2020,125(20).
APA	Wang J.,Feng J.,Yan Z.,&Zha J..(2020).Urbanization Impact on Regional Wind Stilling: A Modeling Study in the Beijing-Tianjin-Hebei Region of China.Journal of Geophysical Research: Atmospheres,125(20).
MLA	Wang J.,et al."Urbanization Impact on Regional Wind Stilling: A Modeling Study in the Beijing-Tianjin-Hebei Region of China".Journal of Geophysical Research: Atmospheres 125.20(2020).