New developments on the Salammbô Radiation-Belt High-Energy Proton model

The Salammbô radiation belt model is a global physical model for the electrons and protons trapped in the radiation belts. It is a 3D (Energy, Equatorial pitch-angle, L*) Fokker-Planck solver modelling the different sources, losses and diffusion processes in the radiation belts around Earth.

We present the recent developments on the Proton model above 1MeV. In particular, we have developed a new dynamical cutoff model for the losses and injections of protons above 10MeV during Solar Energetic Particles (SEP) events. A new model for the Cosmic-Ray Albedo Neutron Decay (CRAND) source was also developed. The Salammbô model has been used to compute the proton phase-space densities for more than two solar cycles, between March 1989 and June 2019, and we present a comparison of our model with CRRES, HEO3, SACC and RBSP data.