---------------------------------------- Type of abstract: Invited for Student Workshop Presenter Name: Lynette Gelinas Status of first author: non-student ---------------------------------------- Title: Ionospheric Dusty Plasmas ---------------------------------------- Authors: Lynette Gelinas, Cornell University, lynett@ee.cornell.edu ---------------------------------------- Abstract: Up to a hundred metric tons of meteoric material enter the Earth's atmosphere every day. Most of the material is deposited in the mesosphere at altitudes between 80-120 km. This dust is immersed in the ionispheric plasma, acquiring a charge. In this talk we describe the dust charging process and equilibrium charge state, and discuss effects due to the presence of this charged dust population in the ionosphere, including a role in sporadic E layers, sporadic neutral metal layers, and a possible role in the recently observed phenomenon of TMA-induced artificial aurora. ---------------------------------------- Upper Atmosphere and Ionosphere