Washita Battlefield National Historic Site : a study of visitor expectations and experiences / VI_ Chslr_na_ of sl_ eoar_ Modeling polar cap F‐region patches using time varying convection Theoretical study of the electron temperature in the high-latitude ionosphere for solar maximum and winter conditions Modeling Polar Cap F-Region Patches Using Time Varying Convection Patches in the polar ionosphere: UT and seasonal dependence Driving a physical ionospheric model with a magnetospheric MHD model Theoretical study of the effect of ionospheric return currents on the electron temperature Ionospheric storm simulations driven by magnetospheric MHD and by empirical models with data comparisons Ambiguity in Identification of Polar Cap F-Region Patches: Contrasting Radio and Optical Observation Techniques