Influence of Glaciogenic Seeding on Electrical State and Lightning Activity of a Convective Cloud

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
N. E. Veremei, M. L. Toropova, Yu. A. Dovgaluk, A. M. Abshaev, Zh. M. Gekkieva, Yu. P. Mikhailovskii, A. A. Sin’kevich
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引用次数: 0

Abstract

Based on the synthesis of the radar and LS8000 lightning detection network data, as well as the cloud resolving modeling, the effect of glaciogenic seeding on the electrical activity of a hail-hazardous cloud, which developed in the North Caucasus on May 14, 2012 was investigated. It has been proved that the introduction of a reagent leads to an increase in the frequency of intracloud discharges and in the total current of negative cloud-to-ground discharges. An increase in the peak current of the cloud-to-ground discharges of both polarities occurs in 10–15 minutes after the seeding termination. Seeding significantly increases the frequency of lightning discharges both in a cloud and a subcloud layer. As a result of seeding, the charge structure of a cloud turns out to be inverted: there is not a positive but a negative charge in its upper part.

Abstract Image

冰川生成对对流云电状态和闪电活动的影响
摘要在综合雷达和 LS8000 闪电探测网络数据以及云解析模型的基础上,研究了冰川播种对 2012 年 5 月 14 日在北高加索地区形成的冰雹危害云的电活动的影响。研究证明,引入试剂会导致云内放电频率和云对地负放电总电流增加。在播种终止后 10-15 分钟内,两极云对地放电的峰值电流都会增加。播种会大大增加云和亚云层中的闪电放电频率。播种的结果是云的电荷结构发生倒置:云的上部不是正电荷而是负电荷。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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