WHAT DETERMINES THE CLOUD-TO-GROUND LIGHTNING FRACTION IN THUNDERSTORMS

被引：169

作者：

PRICE, C ^{[1
]}

RIND, D ^{[1
]}

机构：

[1] COLUMBIA UNIV,NEW YORK,NY 10027

来源：

GEOPHYSICAL RESEARCH LETTERS | 1993年 / 20卷 / 06期

关键词：

D O I：

10.1029/93GL00226

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The ratio of intracloud lightning (IC) to cloud-to-ground lightning (CG) in thunderstorms is observed to vary with latitude. The reason frequently given for this behaviour is that the height of die freezing level, and hence the negative charge center in thunderstorms, varies with latitude, resulting in higher ratios in the tropics compared with those in midlatitudes. This study shows that this hypothesis could well be incorrect. Analysis of cloud and lightning data indicates that the IC/CG ratio is linked to the thickness of the cold cloud region in thunderstorms (0-degrees-C to cloud top), rather than to the freezing level height.

引用

页码：463 / 466

页数：4

共 21 条

[1] THE ELECTRICAL STRUCTURE OF THE HOKURIKU WINTER THUNDERSTORMS [J].