*Chuki HONGO¹, Masashi KIGUCHI² (1.Dept. Physics & Earth Sciences, University of the Ryukyus, 2.Institute of Industrial Science, the University of Tokyo)

*Tokuta YOKOHATA¹, Kazuya NISHINA¹, Masashi KIGUCHI², Yoshihiko ISERI³, Tetsuo SUEYOSHI⁴, Masakazu YOSHIMORI², Akitomo YAMAMOTO², Yasushi HONDA⁵, Naota HANASAKI¹, Akihiko ITO¹, Yoshimitsu MASAKI¹, Masahito SHIGEMITSU⁶, Toshichika IIZUMI⁷, Gen SAKURAI⁷, Kenta IWASE⁸, Kiyoshi TAKAHASHI¹, Seita EMORI¹, Taikan OKI² (1.National Institute for Environmental Studies, 2.University of Tokyo, 3.Tokyo Institute of Technology, 4.Japan Agency for Marine-Earth Science and Technology, 5.University of Tsukuba, 6.Hokkaido University, 7.National Institute for Agro-Environmental Sciences, 8.Nomura Research Institute)