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Fig. 7.


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The proton peak fluxes of the SEP events in the SEP part of the database for various integral energies (>10; 30; 60 and 100 MeV) as a function of the SXR peak flux (in W/m2) (A); the duration of the associated parent solar flares (in minutes) (B); the rise time of the associated parent solar flares (in minutes) (C) and the longitude of the parent solar flare (in degrees) (D). (A) Incorporates the NOAA Space Weather Scales for Solar Radiation Storms (S1–S4), as horizontal dotted lines labelled with each scale, i.e. S1–S4; see for details. Furthermore, it incorporates the class, i.e. C, M, X and X10, of solar flares on its top part.

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