IRI model in the problem of predicting ionospheric radio-wave propagation under conditions of high solar activity
- Авторлар: Krasheninnikov I.V.1, Pavlova N.M.1, Sitnov Y.S.1
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Мекемелер:
- Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation
- Шығарылым: Том 57, № 6 (2017)
- Беттер: 719-726
- Бөлім: Article
- URL: https://journals.rcsi.science/0016-7932/article/view/156444
- DOI: https://doi.org/10.1134/S0016793217060056
- ID: 156444
Дәйексөз келтіру
Аннотация
The paper presents the results of an analysis of the correspondence between model representations the monthly mean diurnal dependences of critical frequency and vertical profiles of plasma frequency at local noon at IZMIRAN station for the middle months of the four seasons of 2014, the year of the maximum solar activity in the current 24th cycle. It is shown that in general the IRI model reliably describes the daily variation of foF2, and the smallest discrepancy is achieved when its basic input parameter is given by the ionospheric index of solar activity IG12. An exception is April, for which there is a fundamental discrepancy with the model both in the daily variation of the critical frequency foF2 and in the Ne(h)-profile for local noon time. For this month, the inadequacy in the model representation of the vertical distribution of the electron density turned out to be very significant in the calculation of the MUF: the relative error can reach 20%. The simulation results are confirmed by data from oblique-incidence ionospheric radio sounding.
Авторлар туралы
I. Krasheninnikov
Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation
Хат алмасуға жауапты Автор.
Email: krash@izmiran.ru
Ресей, Moscow
N. Pavlova
Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation
Email: krash@izmiran.ru
Ресей, Moscow
Yu. Sitnov
Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation
Email: krash@izmiran.ru
Ресей, Moscow
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