Journal
ANNALES GEOPHYSICAE
Volume 22, Issue 6, Pages 2255-2271Publisher
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/angeo-22-2255-2004
Keywords
interplanetary physics; (energetic particles; flare and stream dynamics; interplanetary shocks)
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A new catalogue of 253 solar proton events (SPEs) with energy >10 MeV and peak intensity >10 protons/cm(2).s.sr (pfu) at the Earth's orbit for three complete 11-year solar cycles (1970-2002) is given. A statistical analysis of this data set of SPEs and their associated flares that occurred during this time period is presented. It is outlined that 23 1 of these proton events are flare related and only 22 of them are not associated with Ha flares. It is also noteworthy that 42 of these events are registered as Ground Level Enhancements (GLEs) in neutron monitors. The longitudinal distribution of the associated flares shows that a great number of these events are connected with west flares. This analysis enables one to understand the long-term dependence of the SPEs and the related flare characteristics on the solar cycle which are useful for space weather prediction.
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