气候变化领域集成服务门户(CCPortal): Simulation of the responses of rainstorm in the Yangtze River Middle Reaches to changes in anthropogenic aerosol emissions

CCPortal

DOI	10.1016/j.atmosenv.2019.117081
	Simulation of the responses of rainstorm in the Yangtze River Middle Reaches to changes in anthropogenic aerosol emissions
	Bai Y.; Qi H.; Zhao T.; Zhou Y.; Liu L.; Xiong J.; Zhou Z.; Cui C.
发表日期	2020
ISSN	1352-2310
卷号	220
英文摘要	The model WRF-Chem sensitivity simulation experiments with changing intensity of anthropogenic emissions sources were applied to simulate a rainstorm process in the Yangtze River Middle Reaches (YRMR) during June 18–19, 2018 to study the responses of clouds and precipitation in the rainstorm to changes in aerosol concentrations in this region. The simulation experiments revealed that the aerosol-cloud interaction during low and high emission phases tended to inhibit and to enhance the precipitation process with the precipitation peak lagging 1–2 h. In the later period of rainstorm, high concentrations of aerosols improved precipitation efficiency significantly, resulting in more centralized clusters of intense precipitation. The cloud droplet number concentrations and cloud water contents demonstrated an increasing logarithmic relationship with increasing PM2.5 concentrations. The PM2.5 concentration of about 25 μg/m3 was estimated as the response threshold of cloud droplet number concentrations from sharp to smooth changes. Before and after the peak precipitation, the relationship between the average precipitation rates and PM2.5 concentrations presented an inverse power function. Aerosol-induced precipitation changes were sensitive to ambient relative humidity (RH). When 80% ≤ RH < 85%, the response of precipitation to aerosol emissions was in equilibrium. When RH < 80% or RH > 85% increasing anthropogenic aerosol emissions tended to inhibit or enhance precipitation, especially in the case of low (high) aerosol emissions. © 2019 Elsevier Ltd
关键词	Aerosol-cloud interaction Anthropogenic aerosol emissions Rainstorm WRF-Chem Yangtze River Middle Reaches
语种	英语
scopus关键词	Aerosols; Drops; Rivers; Storms; Aerosol-cloud interaction; Anthropogenic aerosols; Rainstorm; WRF-Chem; Yangtze River; Precipitation (meteorology); aerosol; anthropogenic source; cloud droplet; cloud water; emission; precipitation (climatology); rainstorm; relative humidity; simulation; aerosol; article; concentration (parameter); humidity; precipitation; river; simulation; water content; China; Yangtze River
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249504
作者单位	Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research, Institute of Heavy Rain, China Meteorological Administration, Wuhan, 430205, China; Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, 210044, China
推荐引用方式 GB/T 7714	Bai Y.,Qi H.,Zhao T.,et al. Simulation of the responses of rainstorm in the Yangtze River Middle Reaches to changes in anthropogenic aerosol emissions[J],2020,220.
APA	Bai Y..,Qi H..,Zhao T..,Zhou Y..,Liu L..,...&Cui C..(2020).Simulation of the responses of rainstorm in the Yangtze River Middle Reaches to changes in anthropogenic aerosol emissions.ATMOSPHERIC ENVIRONMENT,220.
MLA	Bai Y.,et al."Simulation of the responses of rainstorm in the Yangtze River Middle Reaches to changes in anthropogenic aerosol emissions".ATMOSPHERIC ENVIRONMENT 220(2020).