I.2.6 Other SEP models

Other model are under development. These developments relate to alternative statistical approaches and models for peak fluxes.

The Nymmik proton model ([RD.75] and [RD.76]) is in the process to be considered as an ISO standard (ISO TS 15391).

The PSYCHIC solar particle model [RD.105] includes heavy ions and extends the energy range of solar protons to 300 MeV.