Journal of Radio Electronics. eISSN 1684-1719. 2024. ¹8
Full text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2024.8.7
OF IONOSPHERIC IRREGULARITIES IN HIGH LATITUDES
USING ROTI BASED ON GPS AND TRANSIT/PARUS
A.M. Padokhin 1,2,3, E.S. Andreeva 1, M.O. Nazarenko 1, A.V. Karlysheva 1, I.A. Pavlov 1,2,3, G.A. Kurbatov 1
1 Lomonosov Moscow State University, Faculty of Physics,
Leninskie Gory, Moscow 119991, Russia
2 Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation,
Kaluzhskoe sh. 4, Troitsk 108840, Russia
3I nstitute of Solar-Terrestrial Physics,
Lermontov st. 126a, Irkutsk 664033, Russia
The paper was received May 17, 2024.
Abstract. The paper compares the possibilities for describing high latitude ionospheric irregularities with characteristic horizontal scales of several tens of kilometers with ROTI index, based on the reception of GPS and Parus/Transit signals. It is shown that in the case of GPS, the maximum ROTI values are observed in the regions of the auroral oval and polar cap, while for Parus/Transit there is an additional region associated with the field aligned enhancement of phase and TEC fluctuations for observations in the direction of the magnetic zenith. Such differences are associated with the inclinations of the orbits of low-orbit (Parus/Transit) and medium-orbit (GPS) satellites, the latter of which does not effectively scan the magnetic zenith region for receivers located at high latitudes. In addition, there are significant, up to 2 times, differences in the ROTI index values according to GPS and Parus/Transit data, which is associated with different speeds of movement of satellite ionospheric piercing points and their mutual orientation with the plasma drift speed in high latitudes, which can lead to a mismatch in the characteristic horizontal scales of irregularities to which the ROTI index demonstrates maximum sensitivity.
Key words: ionosphere, irregularities, GPS, Parus, Transit, TEC, ROTI.
Financing: Russian Science Foundation project ¹ 23-17-00157.
Corresponding author: Padokhin Artem, padokhin@physics.msu.ru
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For citation:
Padokhin A.M., Andreeva E.S., Nazarenko M.O., Karlysheva A.V., Pavlov I.A., Kurbatov G.A. Peculiarities of description of ionospheric irregularities in high latitudes using ROTI based on GPS and Transit/Parus navigation systems data. // Journal of Radio Electronics. – 2024. – ¹ 8. https://doi.org/10.30898/1684-1719.2024.8.7 (In Russian)