A laboratory study of ice nucleation due to electrical discharge

被引：19
|
作者：
Mandal, G [1 ]
Kumar, PP [1 ]
机构：
[1] Univ Poona, Dept Phys, Pune 411007, Maharashtra, India
来源：
ATMOSPHERIC RESEARCH | 2002年 / 61卷 / 02期
关键词：
ice nucleation; electrical discharge; electric field; corona discharge;
D O I：
10.1016/S0169-8095(01)00129-6
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
Experiments were performed in a walk-in cold room where the lowest attainable temperature is -30 degreesC to investigate the effect of electrical discharge and high electric fields on ice nucleation. Experiments were carried out at cloud temperatures varying from -9 to -12 degreesC. It was observed that ice nucleation does occur inside the cloud if there is an electrical discharge inside the cloud. However, not all electrical discharges resulted in ice nucleation. In no case was ice nucleation observed in the presence of high electric fields with no discharge. No ice nucleation was noted in the cloud when the Liquid Water Content (LWC) was greater than 2.1 g m(-3). (C) Elsevier Science B.V. All rights reserved.
引用
收藏
页码：115 / 123
页数：9
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