Behavior of electron density in the ionosphere over Norilsk during the period of declining solar activity

Olga Yakovleva; Galina Kushnarenko; Galina Kuznetsova

doi:doi:10.12737/stp-72202107

UDC 55

Behavior of electron density in the ionosphere over Norilsk during the period of declining solar activity

Published в Solar-Terrestrial Physics · Volume 7, Issue 2, 2021 · Pages 70–73 · Rubrics: Results of current research

DOI 10.12737/stp-72202107

Received: 19.10.2020 Accepted: 22.04.2021 Published: 30.06.2021 Language of publication: ENG

Authors

Olga Yakovleva ¹ · Galina Kushnarenko ² · Galina Kuznetsova ³

1 Institute of Solar Terrestrial Physics SB RAS
Irkutsk, Russian Federation

2 Institute of Solar Terrestrial Physics SB RAS
Irkutsk, Russian Federation

3 Institute of Solar Terrestrial Physics SB RAS
Irkutsk, Russian Federation

ABSTRACT

We report the results of approximation of electron density Ne array obtained with a digisonde at the high-latitude station Norilsk (69.40° N, 88.10° E) during years of declining solar activity (2003–2006). The calculations are made using the author's semi-empirical model with new coefficients calculated specifically for the station Norilsk. We obtain altitudinal changes of annual variations in daily Ne at heights of the ionospheric layer F1 (120–200 km). Approximation of experimental data describes Ne quite satisfactorily at these heights. Nevertheless, there are periods with quite pronounced deviations of model values from the experiment. The presence of significant geomagnetic disturbances during these periods is probably one of the reasons for such deviations.

KEYWORDS

electron density annual variation semi-empirical model (SEM)

Information Text References

Authors:

1. Institute of Solar Terrestrial Physics SB RAS

Irkutsk, Russian Federation

2. Institute of Solar Terrestrial Physics SB RAS

Irkutsk, Russian Federation

3. Institute of Solar Terrestrial Physics SB RAS

Irkutsk, Russian Federation

Type:

Article

Pages:

from 70 to 73

Status:

Published

Subject area:

UDC 55

Language:

English

Keywords:

electron density, annual variation, semi-empirical model (SEM)

Funding

The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation (project "Study of the state and dynamics of Earth's atmosphere at different time scales under the influence of geophysical, cosmic, and human impacts")

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References

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Behavior of electron density in the ionosphere over Norilsk during the period of declining solar activity

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