1. Coronal Holes of Cycle 24 in Observations at the Solar Dynamics Observatory

   • O. A. Andreeva
   • V. I. Abramenko
   • V. M. Malashchuk

   OriginalPaper 24 March 2022 Pages: S1 - S8

   

2. Analysis of the Physical Characteristics of the Polar Coronal Hole on the Sun in the Microwave Wavelength Range

   • O. A. Golubchina

   OriginalPaper 24 March 2022 Pages: S9 - S15

   

3. Low Values of the Critical Decay Index of the Magnetic Field in Prominence Eruptions

   • B. P. Filippov

   OriginalPaper 24 March 2022 Pages: S16 - S23

   

4. Increased Microwave Radiation Brightness as a Sign of Flare-Producing Active Regions Based on Observations of NOAA Active Region 12371

   • N. G. Peterova
   • N. A. Topchilo
   • E. A. Kurochkin

   OriginalPaper 24 March 2022 Pages: S24 - S35

   

5. Solar Activity, Galactic Cosmic Ray Variations, and the Global Seismicity of the Earth

   • V. V. Khegai
   • A. D. Legen’ka
   • S. P. Gaidash

   OriginalPaper 24 March 2022 Pages: S36 - S47

   

6. Frequency Modulation as a Cause of Additional Branches of the Gleissberg Cycle in Solar Activity

   • N. G. Ptitsyna
   • I. M. Demina

   OriginalPaper 24 March 2022 Pages: S48 - S61

   

7. Evolution of Sunspot Magnetic Fields from the Measurements at the BST-2 Telescope of the Crimean Astronomical Observatory in Solar Cycle 24

   • Yu. T. Tsap
   • N. I. Kleeorin
   • V. M. Malashchuk

   OriginalPaper 24 March 2022 Pages: S62 - S66

   

8. Manifestation of Solar Activity Effects in Lidar Observations of Stratospheric Aerosol

   • V. A. Korshunov
   • D. S. Zubachev

   OriginalPaper 24 March 2022 Pages: S67 - S74

   

9. Solar-Activity Indices for the Ionosphere in Cycles 23 and 24: the Form of Cycles

   • M. G. Deminov
   • R. G. Deminov
   • E. V. Nepomnyashchaya

   OriginalPaper 24 March 2022 Pages: S75 - S79

   

10. Variations of Electron Fluxes in the Outer Radiation Belt: Influence of High-Latitude Traps in the Dayside Cusps

    • A. P. Kropotkin

    OriginalPaper Open access 24 March 2022 Pages: S80 - S85

    

11. Polarization of Pc1 Geomagnetic Pulsations as an Indicator of the Position of Their Source

    • F. Z. Feygin
    • N. G. Kleimenova
    • T. Raita

    OriginalPaper 24 March 2022 Pages: S86 - S93

    

12. Discussion of the Problem of Ionospheric Precursors of Magnetic Storms

    • A. D. Danilov

    OriginalPaper 24 March 2022 Pages: S94 - S102

    

13. Determination of the Enhancement in Electron Temperature in the Subauroral Ionosphere during Magnetic Storms on a Global Scale

    • I. A. Golikov
    • A. Yu. Gololobov
    • G. A. Makarov

    OriginalPaper 24 March 2022 Pages: S103 - S115

    

14. Spectral and Statistical Properties of the Doppler Frequency Shift during Substorms in the F2 Layer

    • N. P. Sergeenko

    OriginalPaper 24 March 2022 Pages: S116 - S126

    

15. Statistical Correction of Mesoscale Variances of the Upper Atmospheric Temperature Based on Observations of the Night Hydroxyl Emission in Zvenigorod

    • A. A. Popov
    • N. M. Gavrilov
    • N. N. Pertsev

    OriginalPaper 24 March 2022 Pages: S127 - S133

    

16. Spitze Angle Changes during Rapid Geomagnetic Core Field Variation

    • A. G. Elias
    • M. Fagre
    • H. Amit

    OriginalPaper 24 March 2022 Pages: S134 - S142

    

17. Investigation of Success of AUSPOS and OPUS in Different Geomagnetic Activities and Short Session Durations

    • Sercan Bulbul

    OriginalPaper 24 March 2022 Pages: S143 - S155

    

18. An Analysis of the Latest Super Geomagnetic Storm of the 23RD Solar Cycle (May 15, 2005, Dst: –247 nT)

    • F. Bascıftcı

    OriginalPaper 24 March 2022 Pages: S156 - S166

    

19. Erratum to: Identification of Seismogenic Anomalies Induced by 11 April, 2012 Indonesian Earthquake (M = 8.5) at Indian Latitudes Using GPS-TEC and ULF/VLF Measurements

    • Devbrat Pundhir
    • Birbal Singh
    • Sarita Sharma

    Erratum 24 March 2022 Pages: S167 - S167