Possibility of Ionospheric Cause of FACs and Convection Field in the Magnetosphere-Ionosphere System: The Harang Reversal, Premidnight Upward-FAC, and the Ionospheric Hall Polarization Field

Aoi Nakamizo, National Institute of Information and Communications Technology (NICT), Tokyo, Japan and Akimasa Yoshikawa, Kyushu University, Department of Earth and Planetary Sciences, Fukuoka, Japan