The galactic cosmic ray intensity fluctuations during perturbations of the solar wind in early November 2021

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In order to develop methods for predicting negative manifestations of space weather, the dynamics of fluctuations in the intensity of galactic cosmic rays during geophysical disturbances in early November 2021 is studied. The obtained results point to the possibility of real-time short-term space weather forecasting based on the measurement data of the Russian national ground-based network of cosmic ray stations.

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作者简介

A. Zverev

Shafer Institute of Cosmophysical Research and Aeronomy of the Siberian Branch of the Russian Academy of Sciences

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Email: ZverevAS@ikfia.ysn.ru
俄罗斯联邦, Yakutsk

V. Grigoryev

Shafer Institute of Cosmophysical Research and Aeronomy of the Siberian Branch of the Russian Academy of Sciences

Email: ZverevAS@ikfia.ysn.ru
俄罗斯联邦, Yakutsk

P. Gololobov

Shafer Institute of Cosmophysical Research and Aeronomy of the Siberian Branch of the Russian Academy of Sciences

Email: ZverevAS@ikfia.ysn.ru
俄罗斯联邦, Yakutsk

S. Starodubtsev

Shafer Institute of Cosmophysical Research and Aeronomy of the Siberian Branch of the Russian Academy of Sciences

Email: ZverevAS@ikfia.ysn.ru
俄罗斯联邦, Yakutsk

参考

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2. Fig. 1. Velocity (a) and density (b) of CB, IMF modulus (c), amplitude of CL intensity variations from data of Tiksi Bay (solid curve) and Yakutsk (dashed line) stations (d), Dst-index of geomagnetic activity (e), and proton fluxes in 8 differential energy channels from data of the EPAM experiment on the ASE spacecraft (f) recorded on 1-4 November 2021. From the amplitude of the CL intensity variations at Yakutsk station, 5% of the mean background for the unperturbed time period on 1 November 2021 was subtracted. The legend for the proton fluxes measured on the ACE spacecraft is shown

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3. Fig. 2. Cross-spectra of CL fluctuations determined from data of Yakutsk and Tiksi Bay stations (a), coherence coefficients of CL fluctuations (b) and coherence coefficients between the IMF modulus value and the NE plasma density (c). The dotted line corresponds to the time more than 1 day before the arrival of the MUV (from 1 November 10:41 UT to 2 November 10:40 UT), the solid lines - to the time interval from 2 November 15:31 UT to 3 November 15:31 UT before the arrival of the MUV at the WIND spacecraft3 November 19:54 UT

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