Open AccessInvestigating seasonal features of electron temperature enhancement regions in the subauroral ionosphere
Author(s) -
Артем Гололобов,
Артем Гололобов,
Иннокентий Голиков,
И. А. Голиков
Publication year - 2019
Publication title -
solar-terrestrial physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2500-0535
DOI - 10.12737/stp-51201909
Subject(s) - ionosphere , earth's magnetic field , atmospheric sciences , equinox , electron temperature , geomagnetic storm , terminator (solar) , trough (economics) , f region , physics , electron , geophysics , magnetic field , quantum mechanics , economics , macroeconomics
The electron temperature enhancement is known to occur in the main ionospheric trough during geomagnetic disturbances. In this paper, we study fea-tures of the formation of the electron temperature (Te) enhancement in the subauroral ionosphere by comparing results of the numerical simulation with measurements of Te onboard the CHAMP satellite under moderate geomagnetic activity conditions. It is shown that depending on the terminator position and universal time (UT), the location of the enhanced Te regions in the subauroral ionosphere varies in different seasons. So, in winter ring-shaped and sickle-shaped regions can be formed, whereas during the equinox and summer periods sickle-shaped regions of different lengths and clarity are generally observed.