2014 Workshop: Thermospheric composition and ionosphere

The global thermosphere, especially its compositions (like O, N2, NO, H, He), changes continuously over different time scales from hours up to decades with various magnitudes, especially during magnetic storms. These variations in the thermosphere have significant impact on the ionosphere, such as ionospheric storms, cooling of the ionosphere due to enhanced NO, the O and He transition height and topside ionic species chemistry and dynamics, to name a few. The change in ionospheric density and/or temperature could have a large feedback effect on the thermosphere, not just in the high latitude region, but globally. The variations of the coupled thermosphere and ionosphere system depend on the current condition and history of the energy inputs into this coupled system. We welcome all short presentations that briefly review our current knowledge and discuss future plans (data analysis, modeling and measurement) to further advance our understanding of the chemical and dynamic processes of the globally coupled T-I system.