Poleward-displaced electron precipitation from lightning-generated obliquewhistlers

New simulation results show that obliquely-propagating lightning-generated whistlers which fill vast volumes of the magnetosphere readily induce signi ficant energetic electron precipitation over large regions of the ionospher e, depositing appreciable energy flux to the upper atmosphere at locations substantially poleward of the lightning source. These results provide a new interpretation for the observed spatial relationships between lightning di scharges and subsequently disturbed ionospheric regions inferred from subio nospheric signal perturbations (i.e. Trimpi events) reported in several lig htning-induced electron precipitation (LEP) studies.