Lightning Flash Properties Derived From Lightning Mapping Array Data

被引：0
|
作者：
Montanya, Joan [1 ]
van der Velde, Oscar [1 ]
Sola, Gloria [1 ]
Fabro, Feran [1 ]
Romero, David [1 ]
Pineda, Nicolau [2 ]
Argemi, Oriol [2 ]
机构：
[1] Univ Politecn Cataluna, Dept Elect Engn, Terrassa, Barcelona, Spain
[2] Serv Meteorol Catalunya, Barcelona, Spain
来源：
2014 INTERNATIONAL CONFERENCE ON LIGHTNING PROTECTION (ICLP) | 2014年
关键词：
lightning; lightning mapping; lightning size; Spatial extension; lightning duration; DISCHARGES; INTRACLOUD;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
in this paper size and duration of lightning flashes are examined. Data from the Ebro Valley Laboratory Lightning Mapping Array is used as reference. Additional data from the VLF/LF LINET network and meteorological radar is included. In order to simplify the complex geometry of a lightning flash, each flash is described by a confidence ellipse fitting most of the detected sources. The flash length is represented by the major axis of the ellipse. The analysis of 1047 flashes in a set of different type of thunderstorms results in a median flash length of similar to 20 km with a median duration of similar to 0.4 s. The results presented here, besides characterizing the storm activity, provide valuable information in order to improve the stroke grouping criteria in the flash algorithm, lightning flash density calculations and lightning warning procedures.
引用
收藏
页码：974 / 978
页数：5
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