Collisionless dissipation and plasma kinetic processes regulate
magnetosphere-ionosphere coupling. The formation of parallel electric fields
in the low-altitude magnetosphere produces electron beams that carry large
energy fluxes into the ionosphere and magnetosphere. The downgoing beams
modify the ionospheric conductivity and the electrodynamics of MI coupling.
Topside collisionless ion heating supercharges mass outflow from the
ionosphere and enhances inertial MI coupling. Simple empirical and physical
transport models of these processes, for use in regulating MHD and fluid
dynamic coupling between the LFM and TING models, are being developed at
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