University of Oulu

Artamonov, A., Mironova, I., Kovaltsov, G., Mishev, A., Plotnikov, E., Konstantinova, N. (2017) Calculation of atmospheric ionization induced by electrons with non-vertical precipitation: Updated model CRAC-EPII. Advances in Space Research, 59 (9), 2295-2300. doi:10.1016/j.asr.2017.02.019

Calculation of atmospheric ionization induced by electrons with non-vertical precipitation : updated model CRAC-EPII

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Author: Artamonov, Anton1; Mironova, Irina2; Kovaltsov, Gennady3;
Organizations: 1Space Climate Research Unit, University of Oulu, Finland
2St. Petersburg State University, Institute of Physics, St. Petersburg, Russia
3Ioffe Physical-Technical Institute, St. Petersburg, Russia
4National Research Tomsk Polytechnic University, Tomsk, Russia
5State Scientific Center of the Russian Federation – Institute of Biomedical Problem of the RAS, Moscow, Russia
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
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Language: English
Published: Elsevier, 2017
Publish Date: 2019-02-22


In this paper we present a method to compute ionization rates induced by relativistic electron precipitation with arbitrary incidence. Atmospheric ionization for monoenergetic (100 keV) relativistic electron precipitation including explicitly ionization by Bremsstrahlung radiation is considered. Two peaks of energy deposition in the atmosphere can be identified. The first ionization peak is related to direct ionization of primary relativistic electrons, while the second corresponds to Bremsstrahlung radiation. The ionization rates are presented us Look-up Tables for vertical, isotropic and angular distributions for and angles of electron incidence. A computation algorithm is provided to compute ionization for an arbitrary angular distribution of precipitation electrons.

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Series: Advances in space research
ISSN: 0273-1177
ISSN-E: 1879-1948
ISSN-L: 0273-1177
Volume: 59
Pages: 2295 - 2300
DOI: 10.1016/j.asr.2017.02.019
Type of Publication: A1 Journal article – refereed
Field of Science: 115 Astronomy and space science
1171 Geosciences
Funding: The Finnish group acknowledge ReSoLVE Centre of Excellence, Academy of Finland Proj. 272157, and AA thanks Yliopiston Apteekin rahasto Fund for their help and support of the work on this paper. IM thanks for support of St. Petersburg State University through the Grant 11.42.1069.2016 and Grant RFBR No 17-02-01302 A. This work is also a part of ROSMIC WG1 activity within the SCOSTEP VarSITI program.
Academy of Finland Grant Number: 272157
Detailed Information: 272157 (Academy of Finland Funding decision)
Copyright information: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license