Vol. 64, No. 1, 2024

Geomagnetism and Aeronomy

Parameters of Coronal Dimmings and Their Variations during Solar Cycle 24

A. A. Vakhrusheva, Yu. S. Shugai, K. B. Kaportseva, V. E. Eremeev and V. V. Kalegaev p. 1 abstract

Influence of the Geometrical Shape of a Prominence and Structure of the Coronal Magnetic Field on the Probability of Eruption, Flare Development, and Coronal Mass Ejection

B. P. Filippov p. 11 abstract

Simulation of Spectral Observations of an Eruptive Prominence

Yu. A. Kupryakov, K. V. Bychkov, O. M. Belova, A. B. Gorshkov and P. Kotrč p. 19 abstract

Main Time Characteristics of Cosmic Ray Variations and Related Parameters in Magnetic Clouds

M. A. Abunina, A. V. Belov, N. S. Shlyk, A. A. Abunin, A. A. Melkumyan, I. I. Pryamushkina, V. A. Oleneva and V. G. Yanke p. 24 abstract

Forbush Decreases and Geomagnetic Disturbances: 2. Comparison of Solar Cycles 23–24 and Events with Sudden and Gradual Commencement

A. A. Melkumyan, A. V. Belov, N. S. Shlyk, M. A. Abunina, A. A. Abunin, V. A. Oleneva and V. G. Yanke p. 32 abstract

Spectra and Anisotropy of Cosmic Rays during GLE64

I. I. Kovalev, M. V. Kravtsova, S. V. Olemskoy and V. E. Sdobnov p. 44 abstract

Using Q-Statistics to Study Pulsating Auroras

A. A. Chernyshov, B. V. Kozelov and M. M. Mogilevsky p. 49 abstract

Scenario for the Formation of Vortexlike Structures in a Presubstorm Arc, Taking into Account Changes in the Arc Height during Its Evolution

V. V. Safargaleev, T. I. Sergienko, A. L. Kotikov and A. V. Safargaleev p. 61 abstract

Dependence of Аnnual Asymmetry in NmF2 on Local Time

V. N. Shubin, V. I. Badin, M. G. Deminov and R. G. Deminov p. 77 abstract

Long-Term Temperature Trend in the Mesopause Region from Observations of Hydroxyl Airglow in Zvenigorod

V. I. Perminov, N. N. Pertsev, P. A. Dalin, V. A. Semenov, V. A. Sukhodoev, Yu. A. Zheleznov and M. D. Orekhov p. 84 abstract

Response of the Lower and Upper Ionosphere after the Eruption of Shiveluch Volcano on April 10, 2023

S. A. Riabova and S. L. Shalimov p. 94 abstract

Study of the Delayed Pumping Effect in an Underground Laboratory by Correlation Analysis of Radon and Air Ion Concentrations

L. B. Bezrukov, I. S. Karpikov, V. V. Kazalov, A. K. Mezhokh, S. V. Ingerman, V. V. Sinev, N. Yu. Agafonova, E. A. Dobrynina, R. I. Enikeev, I. R. Shakir’yanova, V. F. Yakushev, Yu. N. Eroshenko and N. A. Filimonova p. 102 abstract

Construction of a Spatiotemporal Model of the Main Geomagnetic Field from Satellite Data for the 2015–2020 Epoch

V. G. Petrov and T. N. Bondar p. 112 abstract

Experiment on Long-Term Forecasting of Geomagnetic Activity Based on Nonlocal Correlations

S. M. Korotaev, V. O. Serdyuk, I. V. Popova, Yu. V. Gorokhov, E. O. Kiktenko and D. A. Orekhova p. 120 abstract

Depth to the Bottom of Lithospheric Magnetic Sources Beneath Northeastern Eurasia: Lithospheric Thermal Regime and Relation to Seismicity

A. I. Filippova and S. V. Filippov p. 128 abstract

Contents

Geomagnetism and Aeronomy