1. Relationship between Duration and Rate of the CME Acceleration

   • A. B. Struminsky
   • I. Yu. Grigor’eva
   • A. M. Sadovski

   OriginalPaper 19 December 2021 Pages: 781 - 791

   

2. Influence of Interacting Solar Wind Disturbances on the Variations in Galactic Cosmic Rays

   • N. S. Shlyk
   • A. V. Belov
   • V. G. Yanke

   OriginalPaper 19 December 2021 Pages: 792 - 800

   

3. Extreme Space Weather Events during the First Cycles of Epochs with Decreased Solar Activity

   • V. N. Ishkov

   OriginalPaper Open access 19 December 2021 Pages: 801 - 809

   

4. Radio Occultation Studies of Disturbances in the Earth’s Ionosphere During a Magnetic Storm on June 22–23, 2015

   • V. N. Gubenko
   • V. E. Andreev
   • D. V. Gubenko

   OriginalPaper 19 December 2021 Pages: 810 - 818

   

5. Features of the Spatial Distribution of a Beam of Whistler-Range Radiation Incident on the Nighttime Ionosphere from above

   • V. G. Mizonova
   • P. A. Bespalov

   OriginalPaper 19 December 2021 Pages: 819 - 829

   

6. Relation of the Monthly Mean Ionospheric T Index to Solar and Geomagnetic Activity Indices

   • M. G. Deminov
   • G. F. Deminova
   • A. Kh. Depueva

   OriginalPaper 19 December 2021 Pages: 830 - 835

   

7. Three-hourly Indices of Ionospheric Activity

   • T. L. Gulyaeva
   • H. Haralambous

   OriginalPaper 19 December 2021 Pages: 836 - 845

   

8. Generation of an Electric Current by a Tsunami Wave in the Midlatitude Ionosphere

   • V. M. Sorokin
   • A. K. Yashchenko

   OriginalPaper 19 December 2021 Pages: 846 - 857

   

9. Determination of the Parameters of Moving Ionospheric Disturbances from Vertical Sensing Ionograms with Additional U-Shaped Tracks

   • O. A. Laryunin

   OriginalPaper 19 December 2021 Pages: 858 - 863

   

10. Luminescence of Molecular Nitrogen and Molecular Oxygen in the Earth’s Middle Atmosphere During the Precipitation of High-Energy Protons

    • A. S. Kirillov
    • V. B. Belakhovsky
    • B. B. Gvozdevskiy

    OriginalPaper 19 December 2021 Pages: 864 - 870

    

11. Parameters of Atmospheric Turbulence and the Dynamics of the Lower Ionosphere in Studies at the SURA Facility

    • N. V. Bakhmetieva
    • G. I. Grigoriev
    • A. V. Pershin

    OriginalPaper 19 December 2021 Pages: 871 - 887

    

12. Modulational Interaction in a Dusty Plasma of Meteoroid Wakes

    • T. I. Morozova
    • S. I. Popel

    OriginalPaper Open access 19 December 2021 Pages: 888 - 895

13. Detection of Possible Short-Term Ionospheric Precursors of Strong Earthquakes Based on Changes in Diurnal Es Characteristics

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

    OriginalPaper Open access 19 December 2021 Pages: 896 - 904

    

14. Processing of Observations of the Partial Solar Eclipse on June 21, 2020, in the 3.2- and 4.9-cm Wavelength Regions at the Mountain Astronomical Station of the Central Astronomical Observatory

    • A. D. Shramko
    • S. A. Guseva

    OriginalPaper 19 December 2021 Pages: 905 - 909