Modeling very high energy natural electrons – MENTHE

This activity aims at the extension of Salammbô, the Earth’s radiation belt physical code developed by ONERA, to the highly energetic electron range. For such needs, recasting the current representation of resonant wave particle interactions in the code is crucial in order to incorporate a valid density model in case of very low density levels. On the other hand, modelling uncertainties needs to be adequately quantified in order to include them to the data assimilation algorithm associated to the Salammbô code. Precisely, a novel dedicated metric will be manufactured for an objective and accurate evaluation of the model performances. Besides, the updated model will be compared, on different orbits via the OMERE software (developed by TRAD) to standard and emerging models. Finally, the implications of the improved modeling of highly energetic electrons will be evaluated with estimates of dose and internal charging on complex geometries along with a study of their impact on satellite shielding. Theses computations will be conducted with the FASTRAD software, developed by TRAD as well.