*Nakamura Yuki1, Akira Oka1 (1.University of Tokyo)
convener:Tomohisa Irino(Faculty of Environmental Earth Science, Hokkaido University), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Ikuko Kitaba(Research Centre for Palaleoclimatology, Ritsumeikan University), Masaki Sano(Research Institute for Humanity and Nature), Chairperson:Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo)