Long-lived meteor trails

Author:

Михалев Александр1,Mikhalev Aleksandr2,Белецкий Александр1,Beletsky Aleksandr2,Васильев Роман1,Vasilyev Roman2,Еселевич Максим1,Eselevich Maxim2,Иванов Кирилл3,Ivanov Kirill4,Комарова Евгения3,Komarova Evgeniya4,Подлесный Алексей1,Podlesnyi Aleksey2,Подлесный Степан1,Podlesny Stepan2,Сыренова Татьяна1,Syrenova Tatyana2

Affiliation:

1. Институт солнечно-земной физики СО РАН

2. Institute of Solar Terrestrial Physics SB RAS

3. Иркутский государственный университет

4. Irkutsk State University

Abstract

Using vertical sounding data obtained by the Irkutsk digisonde DPS-4 from 2003 to 2016, we have studied the frequency of occurrence of the F1 layer in winter conditions. The frequency of occurrence of the F1 layer in December–January is shown to be more than twice lower than that in February at any level of magnetic activity. At moderate and low solar activity under quiet geomagnetic conditions, the appearance of F1 layer in midlatitudes of the Northern Hemisphere may be caused by active thermodynamic processes, which lead to transformation or destruction of the circumpolar vortex at heights of the middle atmosphere. Such global dynamic changes occurring in the winter strato-mesosphere are often associated with sudden stratospheric warming events, which are accompanied by increased generation of atmospheric waves of various scales. These wave disturbances can propagate upward to the heights of the lower thermosphere and ionosphere, carrying a significant vertical flow of energy and causing variations in the composition, thermodynamic parameters of the neutral atmosphere and ionosphere.

Publisher

Infra-M Academic Publishing House

Subject

Space and Planetary Science,Atmospheric Science,Geophysics

Reference31 articles.

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