Investigating seasonal features of electron temperature enhancement regions in the subauroral ionosphere-Reference-Cited by-同舟云学术

Investigating seasonal features of electron temperature enhancement regions in the subauroral ionosphere

Published:2019-03-22 Issue:1 Volume:5 Page:62-68
ISSN:2500-0535
Container-title:Solar-Terrestrial Physics
language:en
Short-container-title:

Author:

Гололобов Артем¹,Gololobov Artem²,Голиков Иннокентий³,Golikov Innokentiy⁴

Affiliation:

1. Северо-Восточный федеральный университет им. М.К. Аммосова

2. North-Eastern Federal University

3. Институт космофизических исследований и аэрономии им. Ю.Г. Шафера СО РАН

4. Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS

Abstract

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.

Publisher

Infra-M Academic Publishing House

Subject

Space and Planetary Science,Atmospheric Science,Geophysics

Reference24 articles.

1. Brace L.H., Theis R.F., Hoegy W.R. A global view of F region electron density and temperature at solar maximum. Geophys. Res. Lett. 1982, vol. 9, no. 9, pp. 989–992. DOI: 10.1029/GL009i009p00989., Brace L.H., Theis R.F., Hoegy W.R. A global view of F region electron density and temperature at solar maximum. Geophys. Res. Lett. 1982, vol. 9, no. 9, pp. 989–992. DOI: 10.1029/GL009i009p00989.

2. Bryunelli B.E., Namgaladze A.A. Physics of the Ionosphere. Moscow, Nauka Publ., 1988, 528 p. (In Russian)., Bryunelli B.E., Namgaladze A.A. Physics of the Ionosphere. Moscow, Nauka Publ., 1988, 528 p. (In Russian).

3. Büchner J., Lehmann H.-R. On possible mechanism of magnetospheric origin of temperature peak in the main ionospheric trough. Physical Processes in Main Ionospheric Trough Region. Praha: Geofyz. Ustav CSAV, 1983, 203 p. (In Russian)., Büchner J., Lehmann H.-R. On possible mechanism of magnetospheric origin of temperature peak in the main ionospheric trough. Physical Processes in Main Ionospheric Trough Region. Praha: Geofyz. Ustav CSAV, 1983, 203 p. (In Russian).

4. Chapman S. The absorption and dissociative of ionizing effect of monochromatic radiation in an atmosphere on a rotation Earth. Proc. Phys. Soc. 1931, vol. 43, no. 5, pp. 483–501. DOI: 10.1088/0959-5309/43/5/302., Chapman S. The absorption and dissociative of ionizing effect of monochromatic radiation in an atmosphere on a rotation Earth. Proc. Phys. Soc. 1931, vol. 43, no. 5, pp. 483–501. DOI: 10.1088/0959-5309/43/5/302.

5. Cole K.D. Stable auroral red arcs, sinks for energy of Dst main phase. J. Geophys. Res. 1965, vol. 70, no. 7, pp. 1689–1709. DOI: 10.1029/JZ070i007p01689., Cole K.D. Stable auroral red arcs, sinks for energy of Dst main phase. J. Geophys. Res. 1965, vol. 70, no. 7, pp. 1689–1709. DOI: 10.1029/JZ070i007p01689.