An empirical statistical model of the radiation characteristics of solar proton events in near-Earth space

Characteristics of solar proton events (SPE) with a maximum flux of 1 cm −2 s −1 sr −1 ( E p > 10 MeV) in the Earth's orbit over the last three 11-year solar cycles are studied using satellite observations. The number of SPEs responsible for strong disturbances in the 22nd cycle has increase...

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Bibliographic Details
Published in:Radiation measurements 1996, Vol.26 (3), p.451-454
Main Authors: Pereyaslova, N.K., Nazarova, M.N., Petrenko, I.E.
Format: Article
Language:English
Subjects:
Geophysics
Mathematical models
Q1
Satellites
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Summary:Characteristics of solar proton events (SPE) with a maximum flux of 1 cm −2 s −1 sr −1 ( E p > 10 MeV) in the Earth's orbit over the last three 11-year solar cycles are studied using satellite observations. The number of SPEs responsible for strong disturbances in the 22nd cycle has increased considerably. Based on the set of radiation and heliogeophysical parameters, statistical and empirical radiation situation (RS) models are described. The models have been developed from the data on the variations of radiation parameters of solar proton events for the 20th, 21st and 22nd cycles of solar activity. RS models are presented as combined distributions of SPE radiation parameters (statistical model), and as the flare heliolongitude dependencies of temporal and spectral characteristics for two classes of SPE (empirical model).
ISSN:1350-4487
1879-0925
DOI:10.1016/1350-4487(96)00043-1