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DOI	10.1029/2020JD033771
	The Influence of Hygroscopic Flare Seeding on Drop Size Distribution Over Southeast Queensland
	Tessendorf S.A.; Chen S.; Weeks C.; Bruintjes R.; Rasmussen R.M.; Xue L.
发表日期	2021
ISSN	2169897X
卷号	126 期号:6
英文摘要	This study presents measurements of the initial cloud-base droplet spectra of seeded and unseeded clouds observed during the Queensland Cloud Seeding Research Program field campaign. The measurements were stratified by the aerosol regime that the cloud formed within, and then analyzed statistically as well as compared to parcel model simulations. Initial droplet spectra were obtained within 300–600 m of cloud base to identify the spectra resulting from nucleation and to avoid effects from collision-coalescence broadening processes. The goal of this study is to assess the impact of hygroscopic flare seeding on cloud-droplet growth as a first step toward understanding the effect of hygroscopic seeding on rainfall. Results indicate that initial droplet spectra are altered by seeding, such that the mean diameter and tail of drops larger than 20 µm increased in seeded clouds within a given aerosol regime. This effect is most pronounced in the continental-influenced aerosol regime, that generally lacked coarse mode aerosols, but was also observed to occur in the maritime-influenced regime. To further investigate if the observational results were supported by theory, a parcel model was used to improve the process-level understanding of the seeding impact on the initial evolution of the droplet spectra. The simulated results qualitatively agree with the observations that noted the seeding effect is more prominent in the continental-influenced regime. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	aerosol cloud interactions; cloud physics; cloud seeding; hygroscopic seeding
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/185401
作者单位	NCAR/RAL, Boulder, CO, United States; Hua Xin Chuang Zhi Sci. & Tech. LLC, Beijing, China
推荐引用方式 GB/T 7714	Tessendorf S.A.,Chen S.,Weeks C.,et al. The Influence of Hygroscopic Flare Seeding on Drop Size Distribution Over Southeast Queensland[J],2021,126(6).
APA	Tessendorf S.A.,Chen S.,Weeks C.,Bruintjes R.,Rasmussen R.M.,&Xue L..(2021).The Influence of Hygroscopic Flare Seeding on Drop Size Distribution Over Southeast Queensland.Journal of Geophysical Research: Atmospheres,126(6).
MLA	Tessendorf S.A.,et al."The Influence of Hygroscopic Flare Seeding on Drop Size Distribution Over Southeast Queensland".Journal of Geophysical Research: Atmospheres 126.6(2021).