Yutaka Kurosaki¹, *Akiyo Yatagai², Atsuko Sugimoto³ (1.Faculity Science and Technology, Hirosaki University, 2.Graduate School of Science and Technology, Hirosaki University, 3.Arctic Research Center, Hokkaido University)

*Akiyo Yatagai¹, David N Petley², Melanie J Froude², Ryutaro Suzuki¹, Chiaki Ando¹, Masahiro Chigira³ (1.Hirosaki Univ., 2.Sheffield Univ., 3.Kyoto Univ.)

*Kazuyuki Kita¹, Atsushi Sinohara², Kencho Kawatsu³, Kazuhiko Ninomiya², Yuki Inai², Haruka Minowa⁴, Tsutomu Ohtuki⁵, Yasushi Kino⁶, Kazuma Koarai⁶, Takashi Saito⁷, Yukihiko Sato⁸, Keisuke Sueki⁹, Koichi Takamiya⁵, Yukio Takeuchi¹⁰, Taeko Doi¹⁰, Yoshinari Abe¹¹, Yasuhiro Iwamoto¹², Masaki Uesugi¹³, Satoru Endou¹⁴, Hiroshi Okochi¹², Naoya Katsumi¹², Akimitsu Kanda², Kenya Kubo¹⁵, Yuya Koike¹⁶, Akinori Sueoka¹², Anna Suzuki², Masatoshi Suzuki⁶, Kenji Suzuki³, Tsugiko Takase³, Masaomi Takahashi², Zi Jian Zhang², Izumi Nakai¹¹, Seiya Nagao¹³, Akihiro Nanbu², Fujita Nobuhumi², Yuichi Moriguchi¹⁸, Akiyo Yatagai¹⁷, Akihiko Yokoyama¹³, Go Yoshida², Takashi Yoshimura², Akira Watanabe³ (1.Ibaraki University, 2.Osaka University, 3.Fukushima University, 4.The Jikei University School of Medercine, 5.Kyoto University, 6.Tohoku University, 7.Shokei Gakuin Daigaku, 8.Japan Atomic Energy Agency, 9.Tsukuba University, 10.National Institute of Environmental Studies, 11.Tokyo University of Science, 12.Waseda University, 13.Kanazawa University, 14.Hiroshima University, 15.International Christian University, 16.Meiji University, 17.Hirosaki University, 18.University of Tokyo)

*Haruka Minowa¹, Kazuyuki Kita², Atsushi Shinohara³, Kencho Kawatsu⁴, Kazuhiko Ninomiya³, Yuki Inai³, Tsutomu Ohtsuki⁵, Yasushi Kino⁶, Kazuma Koarai⁶, Takashi Saito⁷, Yukihiko Satou⁸, Keisuke Sueki⁹, Koichi Takamiya⁵, Yukio Takeuchi¹⁰, Taeko Doi¹⁰, Masaki Uesugi¹¹, Satoru Endo¹², Shingo Okumura¹³, Takahiro Ono¹⁴, Seika Onozaki¹⁴, Naoya Katsumi¹⁵, Akimitsu Kanda³, Nguyen Tat Thanh ¹², Kenya Kubo¹⁶, Shuntaro Kinno¹⁵, Anna Suzuki³, Masatoshi Suzuki⁶, Kenji Suzuki⁴, Masaomi Takahashi³, Sota Takenaka¹¹, Zi Jian Zhang³, Izumi Nakai¹⁴, Shunsuke Nakamura¹², Akihiro Nambu³, Yudai Nishiyama⁵, Junpei Nishiyama⁶, Daisuke Fukuda¹³, Kengo Fujii¹³, Nobufumi Fujita³, Naoki Miyazawa¹¹, Tomo Muranoi⁶, Yuichi Moriguchi¹⁷, Akiyo Yatagai¹⁸, Kouhei Yamamori¹¹, Akihiko Yokoyama¹¹, Go Yoshida³, Takashi Yoshimura³ (1.The Jikei University School of Medicine, 2.Ibaraki University, 3.Osaka University, 4.Fukushima University, 5.Kyoto University, 6.Tohoku University, 7.Shokei Gakuin University, 8.Japan Atomic Energy Agency, 9.Tsukuba University, 10.National Institute for Environmental Studies, 11.Kanazawa University, 12.Hiroshima University, 13.Meiji University, 14.Tokyo University of Science, 15.Waseda University, 16.International Christian University, 17.Tokyo University, 18.Hirosaki University)