The 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 is included. In the analysis, each flash is simplified by a confidence ellipse fitting most of the detected sources. The major axis of the ellipse is adopted as the flash length. Flash durations are computed too. The analysis of 778 flashes results in a median flash length of ¿14 km with a median duration of ¿0.3 s. The results presented, besides characterizing the storm activity, they can be useful to define stroke grouping criteria, lightning flash density calculations and lightning warning purposes.
CitationMontaña, J., Pineda, N., Van Der Velde, O., Sola, G., Argemí, O., Fabro, F., Romero, D., Aranguren, D. Basic lightning flash properties derived from lightning mapping array data. A: International Conference on Grounding and Earthing & International Conference on Lightning Physics and Effects. "GROUND' 2014: International Conference on Grounding and Earthing: 6th LPE : International Conference on Lightning Physics and Effects, May 2014, Manaus, Brazil". Manaus: 2016, p. S1-P1-S1-P9.
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