Temporal evolution of chlorine and related species observed with Aura/MLS, Envisat/MIPAS, and ground-based FTIR at Syowa Station, Antarctica during late winter and spring in 2007 and 2011

Hideaki Nakajima, NIES National Institute of Environmental Studies, Ibaraki, Japan, Isao Murata, Tohoku University, Sendai, Japan, Yoshihiro Nagahama, National Institute for Environmental Studies, Tsukuba-city, Japan, Masanori Takeda, Tohoku University, Graduate School of Environmental Studies, Sendai, Japan and Nicholas B Jones, Univ Wollongong, Wollongong, Australia