Study of Unpredicted First Geomagnetic Storm of 2020, Due to Interaction of ICME with Near-earth Space on Аpril 20

Velinov, P.; Tassev, Yordan; Tomova, Dimitrinka

doi:10.7546/crabs.2020.11.12

Cited by 1 publication

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“…The results obtained in the present work are important for solving problems of space physics and space weather [23][24][25][26]. They tie in with the latest developments on these topics and provide a quantitative assessment of the influence of cosmic rays on the mechanisms of solar-terrestrial connections [27][28][29][30][31][32][33].…”

Section: Discussionmentioning

confidence: 91%

Cosmic ray spectra and intensity in middle atmosphere (CORSIMA) model. Use and application for galactic cosmic rays

Mishev¹,

Velinov²,

Asenovski³

et al. 2023

Proceedings of 27th European Cosmic Ray Symposium — PoS(ECRS)

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This investigation is based on a new model CORSIMA (COsmic Ray Spectra and Intensity in Middle Atmosphere). Numerical simulations of Galactic Cosmic Ray (GCR) spectra and intensity for the middle atmosphere and lower altitudes of the ionosphere (30-80 km) are presented. These altitudes are above the Regener-Pfotzer maximum. The full GCR composition (protons p, alpha particles 𝛼, and heavier nuclei groups: light L, medium M, heavy H, very heavy VH) is used [1]. Analytical expressions for the energy interval contributions are provided. An approximation of the ionization function on six energy intervals is used and the charge decrease interval for electron capture is studied. The development of this research is important for a better understanding of the processes and mechanisms of space physics and space weather. GCR have an impact on the ionization and electrical parameters in the atmosphere and also on the chemical processes (ozone formation and depletion in the stratosphere) in it. These effects can be significantly enhanced during strong and moderately strong solar energetic particle events and geomagnetic storms.

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