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Telecommunications and Radio Engineering
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ISSN Online: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v67.i18.80
pages 1691-1699

Model Transient Electric Pulses in Mesosphere above the Bent Stroke of Lightning

I. G. Kudintseva
V. Karazin National University of Kharkov, 4, Svoboda sq., Kharkov, 61077, Ukraine
Masashi Hayakawa
Hayakawa Institute of Seismo Electromagnetics Co. Ltd.(Hi-SEM), The University of Electro-Communications (UEC) Alliance Center #521, Advanced & Wireless and Communications Research Center, UEC, Chofu, Tokyo, 182-8585, Japan

ABSTRACT

Pulsed electric fields were computed in the neutral atmosphere above a powerful positive bent stroke of lightning that contains vertical and horizontal sections, each 10 km long. We demonstrate the fine structure of the field arising in the space due to a combination of delayed pulses from vertical and horizontal sections of the causative discharge. The electric field distribution depends on time and on the stroke orientation with respect to an elevated observer. Characteristic size of 'filaments' in the transient electric field is about 1 km along the horizontal direction, and it reaches a few tens of kilometers in the height.