SPE Threat Assessment Tool (STAT) and Particle Acceleration Resulting from CMEs Modeled from the Photosphere to past 1AU

The SPE Threat Assessment Tool (STAT) is an easy-to-use framework for simulating and analyzing solar proton events resulting from coronal mass ejections (CMEs). STAT combines CORHEL (Corona-Heliosphere), which produces magnetohydrodynamic (MHD) models of the solar corona and inner heliosphere, with EMMREM (Earth-Moon-Mars Radiation Environment Module), which simulates the acceleration and transport of solar energetic particles (SEPs). The model starts with MHD simulations of real CME events using the Magnetohydrodynamic Algorithm outside a Sphere (MAS) code. These simulations form the background for three-dimensional solutions of the focused transport equation with the Energetic Particle Radiation Environment Module (EPREM). The framework has been delivered to the Community Coordinated Modeling Center (CCMC) and will be available for use by the community. We've also made advancements in coupling MHD and particle simulations by modeling a CME and the particle responses from the photosphere out past 1AU. Previously we could either model the coronal environment and push the particle solution out to 1AU with assumptions about transport, or initiate the CME at 0.1AU and ignore the coronal contribution to the acceleration. Using bleeding edge MPI capabilities we've implemented a shared memory paradigm that's allowed us to hold both the coronal and heliospheric MHD solutions in memory simultaneously. This allows a smooth transition for the particle simulation between domains. Results for coronal, heliospheric, and coronal+heliospheric simulations will be presented.