Formation of Polar Ionospheric Tongue of Ionization during Minor Geomagnetic Disturbed Conditions

Jing Liu1, Wenbin Wang2, Alan Geoffrey Burns1, Xinan Yue3, Shunrong Zhang4 and Yongliang Zhang5, (1)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, (2)High Altitude Observatory, Boulder, CO, United States, (3)UCAR, Boulder, CO, United States, (4)MIT Haystack Observatory, Westford, MA, United States, (5)Johns Hopkins University, Baltimore, MD, United States