Chair: Magnetosphere-ionosphere coupling: Interhemispheric Conjugacy-nonconjugacy Effects and Coupling Processes Talks also given: 1) Superposed Epoch Analyses Of The Ionospheric Convection And Auroral Evolution During Substorms: Onset Local Time And IMF By Dependences 2) Dynamic Sub-Auroral Ionospheric Electric Fields Observed By The Falkland Islands Radar During The Course Of A Geomagnetic Storm