Convenor:  David Knudsen (Canada)
Co-Convenor: Colin Forsyth (UK), Mark Conde (USA)

The auroral ionosphere and the field lines that thread it define a region of greatly enhanced energy transfer between the solar wind, magnetosphere, ionosphere, and thermosphere.   Decades of in-situ measurements and centuries of ground-based observations have led to identification of key aspects of auroral physics, including the connection between auroral arcs and field-aligned currents, electric potential drops parallel to the geomagnetic field, and the role of ionospheric conductivity in determining the frequency and intensity of auroral arcs.  However, there remains no widely-accepted, self-consistent theory able to account for the generation, morphology, particle acceleration and energy flux characterizing even the most common auroral forms.

 

This session will provide a forum for new theoretical, experimental, and simulation results pertaining to all auroral phenomena.   Critical reviews of the current state of understanding of the discipline are also encouraged.