Vol. 64, No. 2, 2024

Geomagnetism and Aeronomy

Criteria for Forecasting Proton Events by Real-Time Solar Observations

A. B. Struminsky, A. M. Sadovskii and I. Yu. Grigorieva p. 139 abstract

Evolution of Characteristics of Vertical Electric Current and Magnetic Field in Active Regions of the Sun and Their Relation to Powerful Flares

A. B. Nechaeva, I. V. Zimovets, V. S. Zubik and I. N. Sharykin p. 150 abstract

Spatial Distribution of the Eddy Diffusion Coefficient in the Plasma Sheet of Earth’s Magnetotail and Its Dependence on the Interplanetary Magnetic Field and Geomagnetic Activity Based on MMS Satellite Data

D. Yu. Naiko, I. L. Ovchinnikov and E. E. Antonova p. 172 abstract

The Substorms Impact on Processes in the Ionosphere and Plasmasphere of the Earth

G. A. Kotova, V. L. Khalipov, A. E. Stepanov and V. V. Bezrukykh p. 180 abstract

Schwabe Solar Cycle in 1000–1700: Variations in Length and Amplitude

N. G. Ptitsyna and I. M. Demina p. 189 abstract

Forecast of Modulation of Cosmic Rays with Rigidity of 10 GV in the 25th Solar Activity Cycle

V. G. Yanke, A. V. Belov, R. T. Gushchina, P. G. Kobelev and L. A. Trefilova p. 201 abstract

Abnormal Quasi-Recurrent Variations of Cosmic Rays in September 2014–February 2015

N. S. Shlyk, A. V. Belov, V. N. Obridko, M. A. Abunina and A. A. Abunin p. 211 abstract

Dependence of foF2 on Solar Activity Indices Based on the Data of Ionospheric Stations of the Northern and Southern Hemispheres

A. D. Danilov and N. A. Berbeneva p. 224 abstract

Determination of the Velocity of Ionospheric Disturbances from the Dynamics of Additional U-Shaped Traces on Ionograms

O. A. Laryunin, V. I. Kurkin, A. A. Rybkina and A. V. Podlesnyi p. 235 abstract

Features of Radio Emission Propagation in the Ionosphere under Conditions of Threshold Nonlinearity

V. A. Eremenko and N. I. Manaenkova p. 242 abstract

Estimation of the Influence of the Dispersion and Diffraction Properties of the Ionosphere on the Transionospheric Channel Bandwidth

V. P. Pashintsev, M. V. Peskov, D. A. Mikhailov and N. V. Kiselyov p. 248 abstract

Pitch-Angle Diffusion of Radiation Belt Electrons and Precipitating Particle Fluxes: Dependence on VLF Wavefield Parameters

A. G. Demekhov p. 264 abstract

Identification of Possible Short-Term Ionospheric Earthquake Precursors for Seismic Events with Intermediate Hypocentrals Depths by Measuring the Standard Parameters of the Mid-Latitude Es Layer

L. P. Korsunova and V. V. Khegai p. 272 abstract

Seismogenic Quasi-Stationary Electric Fields and Currents from Large-Scale Sources on the Earth’s Surface: Comparison of Model Representations

V. V. Hegai p. 280 abstract

Contents

Geomagnetism and Aeronomy