Global Maps of Galactic Cosmic Ray Induced Ionization at Different Altitudes in Planetary Atmosphere

Authors

  • Alexander Mishev Space Physics and Astronomy Research Unit and Sodankyl¨a Geophysical Observatory, University of Oulu, Finland
  • Peter I. Y. Velinov Institute for Space Research and Technology, Bulgarian Academy of Sciences

DOI:

https://doi.org/10.7546/CRABS.2022.05.10

Keywords:

cosmic rays, atmospheric ionization, Monte Carlo, atmospheric physics and chemistry

Abstract

High-energy precipitating particles of cosmic origin viz. cosmic ray protons of heavier nuclei of galactic and/or solar origin induce complicated nuclear electromagnetic-lepton cascades in the Earth’s atmosphere, eventually leading to an ionization of the ambient air. The induced by cosmic rays atmospheric ionization is related to possible effect of precipitating particles on atmospheric chemistry and physics.

In this work, using a combination of state of the art 3-D full target models we computed as realistically as possible, explicitly considering the contribution of heavy ions, the ion production at eight altitudes in the Earth’s atmosphere, scilicet:

25 g/cm2 (≈ 45 km asl), 50 g/cm2 (≈ 35 km asl)   Fig. 1,

100 g/cm2 (≈ 24.5 km asl), 150 g/cm2 (≈ 19.5 km asl)   Fig. 2,

200 g/cm2 (≈ 16 km asl), 250 g/cm2 (≈ 13.5 km asl) Fig. 3,

300 g/cm2 (≈ 11.5 km asl), 400 g/cm2 (≈ 8.5 km asl)   Fig. 4.

This includes altitudes from the upper troposphere to the stratosphere. Here we provided global maps with resolution of 1×1 of the computed ion production rates. Hence, the presented here results give a good basis for further studies related to the space weather and the possible impact of precipitating highenergy particles of galactic and/or solar origin on the atmospheric chemistry and physics.

Author Biographies

Alexander Mishev, Space Physics and Astronomy Research Unit and Sodankyl¨a Geophysical Observatory, University of Oulu, Finland

Mailing Address:
Space Physics and Astronomy Research Unit
University of Oulu, Finland

and

Sodankyl¨a Geophysical Observatory
University of Oulu, Finland

E-mail: alex_mishev@yahoo.com

Peter I. Y. Velinov, Institute for Space Research and Technology, Bulgarian Academy of Sciences

Mailing Address:
Institute for Space Research
and Technology,
Bulgarian Academy of Sciences
Akad. G. Bonchev St, Bl. 1
1113 Sofia, Bulgaria

E-mail: PeterIYVelinov@gmail.com

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Published

31-05-2022

How to Cite

[1]
A. Mishev and P. Velinov, “Global Maps of Galactic Cosmic Ray Induced Ionization at Different Altitudes in Planetary Atmosphere”, C. R. Acad. Bulg. Sci. , vol. 75, no. 5, pp. 700–708, May 2022.

Issue

Section

Space Sciences