Contents

Geomagnetism and Aeronomy

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Vol. 61, No. 1, 2021

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Manifestation of Seismic Impacts in the Ionosphere Far from the Earthquake Epicenter

V. Yu. Belashov, E. S. Belashova and O. A. Kharshiladze p. 1  abstract

Characteristic Features of Solar Cosmic Rays in the 21st–24th Solar-Activity Cycles According to Data from Catalogs of Solar Proton Events

G. A. Bazilevskaya, E. I. Daibog, Yu. I. Logachev, N. A. Vlasova, E. A. Ginzburg, V. N. Ishkov, L. L. Lazutin, M. D. Nguyen, G. M. Surova and O. S. Yakovchouk p. 6  abstract

Method for Cognitive Identification of Ionospheric Precursors of Earthquakes

S. A. Pulinets, D. V. Davidenko and P. A. Budnikov p. 14  abstract

Model of Jet Generation in Space Plasma

O. G. Onishchenko, O. A. Pokhotelov, V. S. Belyaev, B. V. Zagreev and A. P. Matafonov p. 25  abstract

Diurnal and Longitudinal Variations in the Equatorial Anomaly for Winter Solstice According to Interkosmos-19 Satellite Data

A. T. Karpachev p. 29  abstract

Formation of Extreme Anomalies in the Total Electron Content According to Data from Linear Theory

A. S. Gritsun p. 44  abstract

Advanced Production of Quasi-Definitive Magnetic Observatory Data of the INTERMAGNET Standard

D. V. Kudin, A. A. Soloviev, R. V. Sidorov, V. I. Starostenko, Yu. P. Sumaruk and O. V. Legostaeva p. 54  abstract

Variations in Ionospheric Parameters during the Formation of a Polarization Jet

A. E. Stepanov, A. Yu. Gololobov, V. L. Khalilov and I. A. Golikov p. 68  abstract

Effects of the Strong Ionospheric Storm of August 26, 2018: Results of Multipath Radiophysical Monitoring

L. F. Chernogor, K. P. Garmash, Qiang Guo and Yu Zheng p. 73  abstract

Efficiency of Ionospheric Model Correction by Vertical-Incidence Sounding Data from an Ionosonde during Low Sunspot Activity

N. G. Kotonaeva, M. V. Kolomin, V. V. Mikhailov, K. G. Tsybulya and M. Yu. Philippov p. 92  abstract

Features of Variations in the F2-Layer Critical Frequency During the Sudden Stratospheric Warnings of 1966–2009 According to Data from Kaliningrad and Irkutsk Stations

A. V. Timchenko, F. S. Bessarab, Yu. N. Koren’kov, N. A. Koren’kova, O. P. Borchevkina and K. G. Ratovsky p. 100  abstract

Geomagnetic Effects of Remote Earthquakes

B. G. Gavrilov, Yu. V. Poklad, Yu. S. Rybnov, I. A. Ryakhovsky and I. A. Sanina p. 108  abstract

Statistical Association between Space Weather and Meteorological Variables During Winter in the Baltic Sea Region

Deivydas Kiznys and Jone Vencloviene p. 117  abstract

Computation of Composite Mg II Core-to-Wing Ratio for Solar Cycle 22 and 23

Soumya Roy, Amrita Prasad, Koushik Ghosh, Subhash Chandra Panja and Sankar Narayan Patra p. 128  abstract

The Use of Coupling Functions in the Forecasting of the Dst-Index Amplitude with Adaptive Methods

I. N. Myagkova, V. R. Shirokii, V. V. Kalegaev, O. G. Barinov and S. A. Dolenko p. 138  abstract

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