Vol. 61, No. 5, 2021

Geomagnetism and Aeronomy

Nonlinear Dependence of the Solar Flux on Wolf Numbers and Its Variation for Different 11-Year Cycles

A. I. Laptukhov and V. A. Laptukhov p. 659 abstract

Analysis of the Behavior of the Solar Wind Ion Flux in the Region of the Interplanetary Shock Overshoot

N. L. Borodkova, O. V. Sapunova, V. G. Eselevich, G. N. Zastenker and Yu. I. Yermolaev p. 666 abstract

Forbush Effects Created by Coronal Mass Ejections with Magnetic Clouds

M. A. Abunina, A. V. Belov, N. S. Shlyk, E. A. Eroshenko, A. A. Abunin, V. A. Oleneva, I. I. Pryamushkina and V. G. Yanke p. 678 abstract

Spatial Scales of Super Thin Current Sheets with MMS Observations in the Earth’s Magnetotail

M. V. Leonenko, E. E. Grigorenko and L. M. Zelenyi p. 688 abstract

Development of a Turbulent Cascade behind the Bow Shock under Quiet Conditions in the Solar Wind

L. S. Rakhmanova, M. O. Riazantseva, G. N. Zastenker and Yu. I. Yermolaev p. 696 abstract

Errors in Estimating of the F2-Layer Peak Parameters in Automatic Systems for Processing the Ionograms in the Vertical Radio Sounding of the Ionosphere under Low Solar Activity Conditions

I. V. Krasheninnikov and L. N. Leshchenko p. 703 abstract

Model of the E-Layer Critical Frequency for the Auroral Region

M. G. Deminov, V. N. Shubin and V. I. Badin p. 713 abstract

Large-Scale Disturbances Features Induced in the Ionosphere by Powerful Decameter Radiation during Moderate Magnetic Storms

L. F. Chernogor and V. L. Frolov p. 721 abstract

Reconstruction of Electron-Density Height Profiles Based on Vertical Sounding Data under Multistratification of the E Region

P. F. Denisenko and V. V. Sotsky p. 743 abstract

Features of the Ionospheric Total Electronic Content Response to the Annular Solar Eclipse of June 21, 2020

I. I. Shagimuratov, I. E. Zakharenkova, N. Yu. Tepenitsyna, G. A. Yakimova and I. I. Efishov p. 756 abstract

Bicentennial Evolution and Statistics of Times of Variations in the Energy of the Potential Geomagnetic Field

S. V. Starchenko and S. V. Yakovleva p. 763 abstract

Statistical Links between Solar Cosmic Rays, Type-II Radio Emission, and Coronal Mass Ejections

G. A. Bazilevskaya, Yu. I. Logachev, E. I. Daibog, N. A. Vlasova, E. A. Ginzburg, V. N. Ishkov, L. L. Lazutin, M. D. Nguyen, G. M. Surova and O. S. Yakovchuk p. 773 abstract

Contents

Geomagnetism and Aeronomy