Contents

Geomagnetism and Aeronomy

Vol. 64, No. 3, 2024

Forbush Effects and Geomagnetic Storms

A. V. Belov, E. A. Belova, N. S. Shlyk, M. A. Abunina, A. A. Abunin and S. M. Belov p. 289  abstract

Ionospheric Features of Polar Cusp Dayside Precipitation for a Northern IMF

V. G. Vorobjev, O. I. Yagodkina and E. E. Antonova p. 302  abstract

Study of Sudden Magnetic Storm Commencement from Observations with Second Time Resolution

Yu. S. Zagainova, S. V. Gromov, L. I. Gromova and V. G. Fainshtein p. 313  abstract

Spatial Structure of Plasma Density Disturbances in the Topside Ionosphere Caused by High-Power HF Heating of the F2 Layer

V. L. Frolov, E. S. Andreeva and A. M. Padokhin p. 329  abstract

Trends in the Сritical Frequency foF2 at Stations of the Northern and Southern Hemispheres

A. D. Danilov, A. V. Konstantinova and N. A. Berbeneva p. 348  abstract

NmF2 Variability at Different Longitudes in Mid-Latitudes: The Role of Geomagnetic Activity

V. Kh. Depuev, M. G. Deminov, G. F. Deminova and A. Kh. Depueva p. 360  abstract

Seasonal and Daily Features of the Characteristics of Medium-Scale Traveling Ionospheric Disturbances in Asian Russia in Years of Moderate Solar Activity

V. I. Kurkin, A. V. Podlesny, M. V. Tsedrik and A. V. Soph’in p. 369  abstract

Influence of Solar Activity Variations on Interdiurnal Variability of NmE in Geomagnetically Quiet Conditions Obtained from Ground-Based Dourbes Ionosonde Data

A. V. Pavlov and N. M. Pavlova p. 376  abstract

Compliance of AE and Apo Indices Variations during 23−24 Solar Cycles

T. L. Gulyaeva p. 391  abstract

Comparative Analysis of Meridional and Azimuthal Propagation of Magnetic Variations and Equivalent Current Vortices of Geomagnetic Pc5 Pulsations

A. V. Moiseev, V. I. Popov and S. A. Starodubtsev p. 399  abstract

Using Classification Methods in Forecasting the Level of Geomagnetic Field Disturbance Based on the Kp-Index

I. M. Gadzhiev, O. G. Barinov, I. N. Myagkova and S. A. Dolenko p. 415  abstract

Vector Magnetic Field Reconstruction from Single-Component Data Using Evolutionary Algorithm

R. A. Rytov, N. A. Usov and V. G. Petrov p. 427  abstract

Lithospheric Magnetic Anomalies of the Polar Arctic According to CHAMP Satellite Data

D. Yu. Abramova and L. M. Abramova p. 436  abstract