Seasonal-diurnal features of the medium-scale traveling ionospheric disturbances characteristics in the Asian Region of Russia During years of moderate solar activity

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Abstract

Based on data from a network of oblique-incidence sounding radio paths at mid-latitudes in the Asian region of Russia, a high (up to 40−50%) average-daily recording probability of the medium-scale traveling ionospheric disturbances in years of moderate solar activity has been identified. The daily variation in the recording probability of these disturbances at mid-latitude radio paths in the Asian region of Russia has a pronounced seasonal dependence. For the winter season, there is a daily maximum probability, reaching 100% on some days. In the summer season, it occurs at night hours of local time at the midpoint of the corresponding radio path. The most likely reason for this is the transition from winter to summer pattern of the atmosphere zonal circulation.

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About the authors

V. I. Kurkin

Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences; Russian New University

Author for correspondence.
Email: vikurkin@yandex.ru
Russian Federation, Irkutsk, Moscow

A. V. Podlesnyi

Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences

Email: pav1986@rambler.ru
Russian Federation, Irkutsk

M. V. Cedrik

Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences

Email: mark7cedrick@gmail.com
Russian Federation, Irkutsk

A. V. Sofyin

Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences; Russian New University

Email: sof@rambler.ru
Russian Federation, Irkutsk; Moscow

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Supplementary files

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2. Fig. 1. System of radio paths for oblique chirp sounding of the ionosphere in the Asian region of Russia.

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3. Fig. 2. Examples of ionograms of the NZ with Z-type disturbances for the Khabarovsk-Irkutsk route with an interval of 5 minutes.

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4. Fig. 3. Characteristics of SM TPI (Pt, Pd, Tn) in December 2015 for the Khabarovsk–Irkutsk (a, c, e) and Magadan–Irkutsk (b, d, f) radio paths.

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5. Fig. 4. Characteristics of the SM PIV (Pt, Pd, Tn) for the radio paths Khabarovsk−Irkutsk (a, c, d) and Norilsk−Irkutsk (b, d, e) in March 2016.

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6. Fig. 5. Same as Fig. 4, for September 2015.

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7. Fig. 6. Characteristics of the SM PIV (Pt, Pd, Tn) for the radio paths Khabarovsk−Irkutsk (a, c, d) and Norilsk−Irkutsk (b, d, e) in June 2015.

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