Geosynchronous Electron Fluxes and Chorus Generation During an MHD Substorm

We present results from a numerical study of electron dynamics and whistler generation during an idealized substorm simulated using the Space Weather Modeling Framework. The time-dependent electric and magnetic fields from this simulated substorm are used to drive a new backwards particle tracing model, and the results from this model are used to identify the regions responsible for populating geosynchronous orbit during and after the substorm. Liouville mapping is then used to obtain electron fluxes at geosynchronous orbit as well as to assess the development of anisotropy during the earthward propagation of the electron injection.