Initiation of Positive Streamers near Uncharged Ice Hydrometeors in the Thundercloud Field
- Autores: Babich L.1, Bochkov E.1
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Afiliações:
- Russian Federal Nuclear Center All-Russia Research Institute of Experimental Physics
- Edição: Volume 44, Nº 5 (2018)
- Páginas: 533-538
- Seção: Low-Temperature Plasma
- URL: https://journals.rcsi.science/1063-780X/article/view/186773
- DOI: https://doi.org/10.1134/S1063780X18050033
- ID: 186773
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Resumo
Since the threshold electric field required for breakdown of air is much higher than the maximum field strength measured in thunderstorm clouds, the problem of lightning initiation still remains unsolved. According to the popular hypothesis, lightning can be initiated by a streamer discharge in the field enhanced near a hydrometeor. To verify the adequacy of this hypothesis, the development of a positive streamer propagating along the thunderstorm electric field in the vicinity of an ice needle at an air pressure corresponding to an altitude of 5 km (which is typical of the lightning initiation conditions) was simulated numerically. The hydrometeor dimensions are determined at which streamers can be initiated at different strengths of the thunderstorm electric field.
Sobre autores
L. Babich
Russian Federal Nuclear Center All-Russia Research Institute of Experimental Physics
Autor responsável pela correspondência
Email: leonid.babich52@gmail.com
Rússia, Sarov, Nizhny Novgorod oblast, 607188
E. Bochkov
Russian Federal Nuclear Center All-Russia Research Institute of Experimental Physics
Email: leonid.babich52@gmail.com
Rússia, Sarov, Nizhny Novgorod oblast, 607188