Vol. 63, No. 5, 2023

Geomagnetism and Aeronomy

Preflare X-ray Pulsations with Sources Outside the Main Flare Active Region

I. V. Zimovets, I. N. Sharykin, T. I. Kaltman, A. G. Stupishin and B. A. Nizamov p. 513 abstract

The Flare Emission of the May 4, 2022 Event and Its Millimeter Component

V. V. Smirnova, Yu. T. Tsap, V. S. Ryzhov, G. G. Motorina, A. S. Morgachev and M. Bárta p. 527 abstract

The Influence of Corotating Regions of Interaction of the Solar Wind on Long-Term Variations in the Intensity of Galactic Cosmic Rays

M. S. Kalinin, M. B. Krainev, X. Luo and M. S. Potgieter p. 536 abstract

Forbush Decreases Associated with Coronal Holes, Coronal Ejections from Active Regions, and Filament Eruptions: Comparison in Solar Cycles 23 and 24

A. A. Melkumyan, A. V. Belov, M. A. Abunina, N. S. Shlyk, A. A. Abunin, V. A. Oleneva and V. G. Yanke p. 547 abstract

An Empirical Model for Estimating the Velocities and Delays of Interplanetary Coronal Mass Ejections

N. S. Shlyk, A. V. Belov, M. A. Abunina and A. A. Abunin p. 564 abstract

A Nonlinear Dependence on the Geomagnetic Activity of the Ratio of the Maximum Flux of Charged Particles in a Geostationary Orbit to the Minimum Flux

S. V. Smolin p. 574 abstract

Statistical Analysis of the Critical Frequency foF2 Dependence on Various Solar Activity Indices

A. D. Danilov and N. A. Berbeneva p. 584 abstract

Properties of the Variability of the Maximum Density of the F 2-Layer over Almaty at Different Levels of Solar and Geomagnetic Activity

M. G. Deminov, G. F. Deminova, V. Kh. Depuev and A. Kh. Depueva p. 595 abstract

Development of a Method for Recovery of the Energy Spectra of Precipitating Electrons from the Data of Measurements in the Atmosphere

V. S. Makhmutov, E. A. Maurchev, G. A. Bazilevskaya and I. A. Mironova p. 602 abstract

Long-Term Microwave Observations of Middle Atmospheric Ozone in Apatity during Three Winters

Yu. Yu. Kulikov, A. F. Andriyanov, V. I. Demin, V. M. Demkin, A. S. Kirillov, V. G. Ryskin and V. A. Shishaev p. 608 abstract

Atmospherics Associated with Sprites from Elf/Vlf Observations on the Kamchatka Peninsula

G. I. Druzhin, E. I. Malkin and O. V. Kapustina p. 620 abstract

The Depths to Lithospheric Magnetic Sources under the Baltic Shield

A. I. Filippova and S. V. Filippov p. 629 abstract

The Effect of Solar Flares on HF Radio Communications over Turkey

Leyla Bulut Yıldız and Erdinç Timoçin p. 642 abstract

Wavelet Analysis of Magnetic Distubances during Supersubstorm of September 7 and 8, 2017

D. Pandit, N. P. Chapagain, B. Adhikari and R. K. Mishra p. 652 abstract