气候变化领域集成服务门户(CCPortal): The Evolution of an AgI Cloud-Seeding Track in Central China as Seen by a Combination of Radar, Satellite, and Disdrometer Observations

CCPortal

DOI	10.1029/2020JD033914
	The Evolution of an AgI Cloud-Seeding Track in Central China as Seen by a Combination of Radar, Satellite, and Disdrometer Observations
	Wang J.; Yue Z.; Rosenfeld D.; Zhang L.; Zhu Y.; Dai J.; Yu X.; Li J.
发表日期	2021
ISSN	2169897X
卷号	126 期号:11
英文摘要	Operational cloud seeding has been implemented to alleviate local precipitation shortages in China for over half a century. Here, we present quantitative evidence for the effect of AgI seeding on supercooled layer clouds with a top cloud temperature of −15°C in China, as documented for the first time by a combination of radar, satellite, and disdrometer observations. A radar signature appeared 18 min after seeding, shortly followed by a visible glaciated seeding track. The seeding signature expanded horizontally at a rate of ∼1.4 and ∼0.3 m s−1 before and after 04:25 UTC. The radar signature descended to the surface 40 min after seeding. A disdrometer captured the precipitation of the first seeded raindrops that reached maximum diameter of 2.75 mm compared to the maximum diameter of 1 mm of the light background rain. The enhanced surface rainfall was observed within the subsequent 100 min. A conceptual model for the formation and expansion of the seeding track is presented. Although the precipitation was light, it is a promising step toward the goal of quantifying the impact of cloud seeding in China. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	cloud seeding; clouds; disdrometer observations; precipitation; radar observations; raindrop spectrum; satellite observations
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/185168
作者单位	Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China; Center of Weather Modification of Shaanxi Province, Xi'an, China; Key Laboratory for Cloud Physics of China Meteorological Administration, Beijing, China; Key Laboratory of Eco-Environment and Meteorology for the Qinling Mountains and Loess Plateau, Xi'an, China; Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem, Israel; Collaborative Innovation Center for Western Ecological Safety, Lanzhou University, Lanzhou, China; Meteorological Institute of Shaanxi Province, Xi'an, China
推荐引用方式 GB/T 7714	Wang J.,Yue Z.,Rosenfeld D.,et al. The Evolution of an AgI Cloud-Seeding Track in Central China as Seen by a Combination of Radar, Satellite, and Disdrometer Observations[J],2021,126(11).
APA	Wang J..,Yue Z..,Rosenfeld D..,Zhang L..,Zhu Y..,...&Li J..(2021).The Evolution of an AgI Cloud-Seeding Track in Central China as Seen by a Combination of Radar, Satellite, and Disdrometer Observations.Journal of Geophysical Research: Atmospheres,126(11).
MLA	Wang J.,et al."The Evolution of an AgI Cloud-Seeding Track in Central China as Seen by a Combination of Radar, Satellite, and Disdrometer Observations".Journal of Geophysical Research: Atmospheres 126.11(2021).