caa a22 4500 44530216X CHVBK 20180317142601.0 cr unu---uuuuu 170323e20100201xx s 000 0 eng 10.1134/S000143381001010X doi (NATIONALLICENCE)springer-10.1134/S000143381001010X On conditions of initiation of electric discharges in the middle atmosphere [Elektronische Daten] [E. Mareev, S. Yashunin] This work is devoted to a study of the conditions of initiation of two types of high-altitude discharges: sprites and halos. A quasi-electrostatic model of generation of the electric field in the middle atmosphere is developed; it takes into account the specific features of charge distribution and charge dynamics in the thundercloud, as well as real profile of the atmospheric conductivity. We take into consideration the nonlinear effects associated with the heating of electrons in the electric field. It is shown that the region where the electric field of the lightning flash exceeds the breakdown field is concentrated around an altitude of about 75 km, which is in agreement with the sprite observations. It is found that the dynamics of the current and discharge of the lightning flash plays a significant role in the initiation of high-altitude discharges in the atmosphere. Pleiades Publishing, Ltd., 2010 Mareev E. Institute of Applied Physics, Russian Academy of Sciences, ul. Ulyanova 46, 603950, Nizhny Novgorod, Russia aut Yashunin S. Institute of Applied Physics, Russian Academy of Sciences, ul. Ulyanova 46, 603950, Nizhny Novgorod, Russia aut Izvestiya, Atmospheric and Oceanic Physics SP MAIK Nauka/Interperiodica 46/1(2010-02-01), 69-75 0001-4338 46:1<69 2010 46 11485 https://doi.org/10.1134/S000143381001010X text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S000143381001010X text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mareev E. Institute of Applied Physics, Russian Academy of Sciences, ul. Ulyanova 46, 603950, Nizhny Novgorod, Russia aut NATIONALLICENCE 700 1- Yashunin S. Institute of Applied Physics, Russian Academy of Sciences, ul. Ulyanova 46, 603950, Nizhny Novgorod, Russia aut NATIONALLICENCE 773 0- Izvestiya, Atmospheric and Oceanic Physics SP MAIK Nauka/Interperiodica 46/1(2010-02-01), 69-75 0001-4338 46:1<69 2010 46 11485 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer