The Relationship Between Large Scale Thermospheric Density Enhancements and the Spatial Distribution of Poynting Flux

Large thermospheric neutral density enhancements in the cusp region have been examined for many years. The Challenging Minisatellite Payload (CHAMP) satellite example has enabled observations of perturbation, showing that it is mesoscale size and exists statistically over solar cycle timescales. Further studies examining relationship with magnetospheric energy input shown fine-scale Poynting fluxes are associated perturbations on a case-by-case basis, whilst others found downward also exist statistically. In this study, we use nearly 8 years overlapping Super Dual Auroral Radar Network Active Magnetosphere Planetary Electrodynamics Response Experiment datasets to generate global-scale patterns high-latitude height-integrated flux into ionosphere, time resolution 2 min. From these, average generated based interplanetary magnetic field orientation. We show indeed an important feature maps, but magnitude does not correlate well statistical mass observed by CHAMP similar spatial scales. Importantly, lack correlation between enhancement gives possible insight other processes may account discrepancy, such as deposition at finer scale sizes or higher altitudes than captured.