气候变化领域集成服务门户(CCPortal): Investigation of vertical microphysical characteristics of precipitation under the action of low-frequency acoustic waves

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DOI	10.1016/j.atmosres.2020.105283
	Investigation of vertical microphysical characteristics of precipitation under the action of low-frequency acoustic waves
	Shi Y.; Wei J.; Li Q.; Yang H.; Qiao Z.; Ren Y.; Ni S.; He J.; Shen W.; Cao S.; Wang G.
发表日期	2021
ISSN	0169-8095
卷号	249
英文摘要	As a potentially effective technology for particle removal, acoustic agglomeration technology has been tested for airport defogging and weather modification. Small-scale experiments and simulation studies have shown that acoustic waves can accelerate agglomeration of droplets and aerosol particles, but this has not been confirmed by large-scale field experiments and observations. In this study, field experiments were conducted in a high-altitude and non-interference environment to investigate cloud and precipitation interference by low-frequency acoustic waves. Field tests were carried out in the source region of the Yellow River (SRYR) from July 21, 2019 to November 20, 2019. Macro- and micro- physical characteristics of cloud and precipitation in stratiform and convective–mixed precipitation systems were monitored by disdrometer, micro rain radar, and microwave radiometer. The results showed sensitivity of microphysical parameters of rain rate (R), radar reflectivity factor (Z), liquid water content (Lwc) and height of cloud base (Hc) to acoustic operation. Of these, values of R, Z, and Lwc became larger under the action of acoustic waves, and Hc values became lower with acoustic operation. Spectral parameters λ against μ, Z against R, and Lwc against R at different sampling altitudes and for different precipitation systems follow a quadratic function, power function, and linear function, respectively. The results of this study should be instructive for further efforts to investigate and develop atmospheric interference technology with low-frequency strong acoustic waves. © 2020 Elsevier B.V.
英文关键词	Acoustic operation; Microphysical structure; Precipitation process; Source region of the Yellow River (SRYR)
语种	英语
scopus关键词	Acoustic waves; Agglomeration; Microwave devices; Radar; Weather modification; Acoustic agglomeration; Low frequency acoustic; Microphysical parameters; Microwave radiometers; Physical characteristics; Precipitation systems; Radar reflectivity factor; Small-scale experiment; Rain; acoustic method; acoustic wave; aerosol; cloud microphysics; computer simulation; convective system; droplet; experimental study; precipitation (climatology); stratiform cloud; China; Yellow River
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141646
作者单位	State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, 100084, China; State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China; School of Water Resources and Electric Engineering, Qinghai University, Xining, 810016, China
推荐引用方式 GB/T 7714	Shi Y.,Wei J.,Li Q.,et al. Investigation of vertical microphysical characteristics of precipitation under the action of low-frequency acoustic waves[J],2021,249.
APA	Shi Y..,Wei J..,Li Q..,Yang H..,Qiao Z..,...&Wang G..(2021).Investigation of vertical microphysical characteristics of precipitation under the action of low-frequency acoustic waves.Atmospheric Research,249.
MLA	Shi Y.,et al."Investigation of vertical microphysical characteristics of precipitation under the action of low-frequency acoustic waves".Atmospheric Research 249(2021).