Email this article Diurnal and longitudinal variations in the earth’s ionosphere in the period of solstice in conditions of a deep minimum of solar activity
- Authors: Klimenko M.V.1,2, Klimenko V.V.1, Bessarab F.S.1,2, Zakharenkova I.E.1, Vesnin A.M.3, Ratovsky K.G.4, Galkin I.A.3, Chernyak I.V.5, Yasyukevich Y.V.4, Koren’kova N.A.1, Kotova D.S.1,2
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Affiliations:
- West Department of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
- Kant Baltic Federal University
- University of Massachusetts
- Institute of Solar–Terrestrial Physics
- University of Warmia and Mazury
- Issue: Vol 54, No 1 (2016)
- Pages: 8-19
- Section: Article
- URL: https://bakhtiniada.ru/0010-9525/article/view/153310
- DOI: https://doi.org/10.1134/S001095251601010X
- ID: 153310
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Abstract
The results of studies of longitudinal and LT variations in parameters of the ionosphere–plasmasphere system, obtained using the Global Self-Consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP), assimilation ionospheric model IRI Real-Time Assimilation Mapping (IRTAM), and satellite and ground-based observational data are presented in the paper. The study of the main morphological features of longitudinal and LT variations in the critical frequency of the ionospheric F2 layer (foF2) and total electron content (TEC) depending on latitude in the winter solstice during a solar-activity minimum (December 22, 2009) is carried out. It is shown that the variations in foF2 and TEC, on the whole, are identical, and so mutually substitutable, while creating empirical models of these parameters in quiet geomagnetic conditions. The longitudinal and LT variations in both foF2 and TEC are within an order of magnitude everywhere except for the equator anomaly region, where LT variation is larger by an order of magnitude than longitudinal variation. According to the results of the study, in the American longitudinal sector at all latitudes of the Southern (summer) Hemisphere, maxima of foF2 and TEC are formed. The near-equatorial and high-latitudinal maxima are separated out from these. The estimate of the contribution into the longitudinal variation in foF2 and TEC for various local time sectors and at various latitudes has been obtained for the first time. In the Southern (summer) Hemisphere, longitudinal variation in foF2 and TEC is formed in the nighttime.
About the authors
M. V. Klimenko
West Department of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation; Kant Baltic Federal University
Author for correspondence.
Email: maksim.klimenko@mail.ru
Russian Federation, West Department, Kaliningrad; Kaliningrad
V. V. Klimenko
West Department of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
Email: maksim.klimenko@mail.ru
Russian Federation, West Department, Kaliningrad
F. S. Bessarab
West Department of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation; Kant Baltic Federal University
Email: maksim.klimenko@mail.ru
Russian Federation, West Department, Kaliningrad; Kaliningrad
I. E. Zakharenkova
West Department of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
Email: maksim.klimenko@mail.ru
Russian Federation, West Department, Kaliningrad
A. M. Vesnin
University of Massachusetts
Email: maksim.klimenko@mail.ru
United States, Lowell, MA
K. G. Ratovsky
Institute of Solar–Terrestrial Physics
Email: maksim.klimenko@mail.ru
Russian Federation, Irkutsk
I. A. Galkin
University of Massachusetts
Email: maksim.klimenko@mail.ru
United States, Lowell, MA
Iu. V. Chernyak
University of Warmia and Mazury
Email: maksim.klimenko@mail.ru
Poland, Olsztyn
Yu. V. Yasyukevich
Institute of Solar–Terrestrial Physics
Email: maksim.klimenko@mail.ru
Russian Federation, Irkutsk
N. A. Koren’kova
West Department of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation
Email: maksim.klimenko@mail.ru
Russian Federation, West Department, Kaliningrad
D. S. Kotova
West Department of the Institute of Terrestrial Magnetism, the Ionosphere, and Radiowave Propagation; Kant Baltic Federal University
Email: maksim.klimenko@mail.ru
Russian Federation, West Department, Kaliningrad; Kaliningrad
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