1. The Acceleration of Outer-Belt Electrons by Localized Electric Fields

   • A. P. Kropotkin

   OriginalPaper Open access 01 September 2021 Pages: 477 - 482

2. Phenomena of Hysteresis in the Cutoff Rigidity of Cosmic Rays during the Superstorm of November 7–8, 2004

   • N. G. Ptitsyna
   • O. A. Danilova
   • M. I. Tyasto

   OriginalPaper 01 September 2021 Pages: 483 - 491

   

3. Application of the New Wavelet-Decomposition Method for the Analysis of Geomagnetic Data and Cosmic Ray Variations

   • O. V. Mandrikova
   • A. I. Rodomanskaya
   • B. S. Mandrikova

   OriginalPaper 01 September 2021 Pages: 492 - 507

   

4. Equatorial Plasma Bubbles: Variability of the Latitudinal Distribution with Altitude

   • L. N. Sidorova

   OriginalPaper 01 September 2021 Pages: 508 - 519

   

5. High-Latitude Geomagnetic Disturbances and Field Aligned Currents in the Recovery Phase of the Large Magnetic Storm on June 21–26, 2015

   • N. G. Kleimenova
   • L. I. Gromova
   • L. M. Malysheva

   OriginalPaper 01 September 2021 Pages: 520 - 530

   

6. Assessment of Planetary Indices of Geomagnetic Activity Based on Data from Individual Magnetic Observatories in the Russian Sector

   • V. G. Petrov
   • E. I. Gamza

   OriginalPaper 01 September 2021 Pages: 531 - 539

   

7. Reorientation of the IMF Bz Component as a Trigger of Isolated Bursts of Long-Period Pulsations in the Region of the Dayside Polar Cusp

   • N. A. Kurazhkovskaya
   • B. I. Klain

   OriginalPaper 01 September 2021 Pages: 540 - 550

   

8. Electrification of Dielectric Satellites under the Influence of Electron Flows of the Earth’s Radiation Belts

   • V. V. Surkov
   • K. S. Mozgov

   OriginalPaper Open access 01 September 2021 Pages: 551 - 558

   

9. Estimation of a Tropospheric Electric Field Associated with the African Zone of Thunderstorm Activity that Penetrates the Ionosphere

   • V. V. Khegai
   • L. P. Korsunova
   • A. D. Legen’ka

   OriginalPaper 01 September 2021 Pages: 559 - 564

   

10. Differences in the Predicted Conditions of Shortwave Radio Communication between a Medium-Latitude Transmitter and a Receiver in the Arctic Region with the Use of Different Empirical Ionospheric Models

    • I. V. Mingalev
    • Z. V. Suvorova
    • V. S. Mingalev

    OriginalPaper 01 September 2021 Pages: 565 - 577

    

11. Some Applied Aspects of the Study of Trends in the Upper and Middle Atmosphere

    • A. D. Danilov
    • N. A. Berbeneva

    OriginalPaper 01 September 2021 Pages: 578 - 588

    

12. Seasonal and Long-Term Changes in the Intensity of O₂(b¹Σ) and OH(X²Π) Airglow in the Mesopause Region

    • V. I. Perminov
    • N. N. Pertsev
    • M. D. Orekhov

    OriginalPaper 01 September 2021 Pages: 589 - 599

    

13. Analysis of the TEC Prediction Performance of IRI-2016 Model in the Mid-Latitude Region

    • Salih Alcay

    OriginalPaper 01 September 2021 Pages: 600 - 618

    

14. Lithospheric Electromagnetic Emissions Associated with Some Major Earthquakes Occurred in Indian Subcontinent

    • Sarita Sharma
    • Swati
    • Birbal Singh

    OriginalPaper 01 September 2021 Pages: 619 - 631

    

15. Global-Scale Coupling Characteristics between Geomagnetic Storms and Ionospheric Disturbances

    • Nisong Pei
    • Yong Wu
    • Zhenghao Wu

    OriginalPaper 01 September 2021 Pages: 632 - 646

    

16. The Response of the Equatorial Ionosphere over Nigeria to a Geomagnetic Storm Event

    • G. A. Akinyemi
    • L. B. Kolawole
    • A. B. Rabiu

    OriginalPaper 01 September 2021 Pages: 647 - 657