Dynamics of the polar mesopause region inferred by the 12 years of OH airglow observation at Syowa Station, Antarctic

Satoshi Ishii1, Hidehiko Suzuki1, Yoshimasa Tanaka2,3, Masaki Tsutsumi3,4, Makoto Taguchi5, Mitsumu K Ejiri3,4, Takanori Nishiyama3,4 and Akira Kadokura2,3, (1)Meiji University, Kawasaki, Japan, (2)ROIS-DS Joint Support-Center for Data Science Research, Tachikawa, Tokyo, Japan, (3)NIPR National Institute of Polar Research, Tachikawa, Tokyo, Japan, (4)SOKENDAI Graduate University for Advanced Studies, Kanagawa, Japan, (5)Rikkyo University, Tokyo, Japan