Xuguang Cai^1,2, Alan Geoffrey Burns^2,3, Wenbin Wang^2,3, Anthea Coster⁴, Liying Qian³, Jing Liu⁵, Stanley C Solomon³, Richard Eastes⁶, Robert Edward Daniell⁷ and William E McClintock^6,8, (1)Ncar, Boulder, CO, United States, (2)High Altitude Observatory, Boulder, CO, United States, (3)NCAR, HAO, Boulder, CO, United States, (4)MIT Haystack Observatory, Westford, MA, United States, (5)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, (6)University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (7)Ionospheric Physics, Stoughton, MA, United States, (8)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States