DocumentCode
272279
Title
Lightning flash properties derived from Lightning Mapping Array data
Author
MontanyaÌ€, Joan ; van der Velde, Oscar ; Sola, GloÌ€ria ; FabroÌ, Feran ; Romero, Daniel ; Pineda, Nicolau ; Argemi, Oriol
Author_Institution
Dept. of Electr. Eng., Univ. Politec. de Catalunya, Terrassa, Spain
fYear
2014
fDate
11-18 Oct. 2014
Firstpage
974
Lastpage
978
Abstract
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 ~20 km with a median duration of ~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.
Keywords
lightning protection; meteorological radar; thunderstorms; Ebro Valley Laboratory lightning mapping array; VLF/LF LINET network; flash algorithm; lightning flash density calculations; lightning flash properties; lightning flashes; lightning mapping array data; lightning warning procedures; storm activity; stroke grouping criteria; thunderstorms; Alarm systems; Lead; Lightning; Shape; Spatial extension; lightning; lightning duration; lightning mapping; lightning size;
fLanguage
English
Publisher
ieee
Conference_Titel
Lightning Protection (ICLP), 2014 International Conference o
Conference_Location
Shanghai
Type
conf
DOI
10.1109/ICLP.2014.6973264
Filename
6973264
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