*Mitsumu K. EJIRI¹, Takuo TSUDA², Takanori NISHIYAMA¹, Makoto ABO³, Michi NISHIOKA⁴, Takashi MARUYAMA⁴, Akinori SAITO⁵, Takuji NAKAMURA¹ (1.National Institute of Polar Research, 2.The University of Electro-Communications, 3.Graduate School of System Design, Tokyo Metropolitan University, 4.National Institute of Information and Communications Technology, 5.Department of Geophysics, Graduate School of Science, Kyoto University)

*Takanori NISHIYAMA¹, Kaoru SATO², Takuji NAKAMURA¹, Masaki TSUTSUMI¹, Toru SATO³, Masashi KOHMA², Koji NISHIMURA¹, Yoshihiro TOMIKAWA¹, Mitsumu K. EJIRI¹, Takuo TSUDA⁴ (1.National Institute of Polar Research, 2.Department of Earth and Planetary Science, The University of Tokyo, 3.Department of Communications and Computer Engineering, Kyoto University, 4.Department of Communication Engineering and Informatics, University of Electro-Communications)

*Takanori NISHIYAMA¹, Kaoru SATO², Takuji NAKAMURA¹, Masaki TSUTSUMI¹, Toru SATO³, Masashi KOHMA², Koji NISHIMURA¹, Yoshihiro TOMIKAWA¹, Mitsumu K. EJIRI¹, Takuo TSUDA⁴ (1.National Institute of Polar Research, 2.Department of Earth and Planetary Science, The University of Tokyo, 3.Department of Communications and Computer Engineering, Kyoto University, 4.Department of Communication Engineering and Informatics, University of Electro-Communications)

*Natsuo SATO¹, Akira KADOKURA¹, Yoshimasa TANAKA¹, Takanori NISHIYAMA¹, Akira sessai YUKIMATU¹ (1.National Institute of Polar Research)

*Mitsumu K. EJIRI¹, Takuo TSUDA², Takanori NISHIYAMA¹, Makoto ABO³, Michi NISHIOKA⁴, Takashi MARUYAMA⁴, Akinori SAITO⁵, Takuji NAKAMURA¹ (1.National Institute of Polar Research, 2.The University of Electro-Communications, 3.Graduate School of System Design, Tokyo Metropolitan University, 4.National Institute of Information and Communications Technology, 5.Department of Geophysics, Graduate School of Science, Kyoto University)

*Masaru KOGURE¹, Takuji NAKAMURA², Mitsumu K. EJIRI², Takanori NISHIYAMA², Masaki TSUTSUMI², Takuo TSUDA³ (1.Department of Polar Science, The Graduate University for Advanced Studies, 2.National Institute of Polar Research, Japan, 3.The University of Electro- Communications)

*Masaru KOGURE¹, Takuji NAKAMURA², Mitsumu K. EJIRI², Takanori NISHIYAMA², Masaki TSUTSUMI², Takuo TSUDA³ (1.Department of Polar Science, The Graduate University for Advanced Studies, 2.National Institute of Polar Research, Japan, 3.The University of Electro- Communications)

*Takuo TSUDA¹, Mitsumu K. EJIRI², Takanori NISHIYAMA², Makoto ABO³, Takuya KAWAHARA⁴, Takuji NAKAMURA² (1.The University of Electro-Communications, 2.National Institute of Polar Research, 3.Tokyo Metropolitan University, 4.Shinshu University)

*Yoko FUKUDA¹, Ryuho KATAOKA², Yoshizumi MIYOSHI³, Yuto KATOH⁴, Takanori NISHIYAMA², Kazuo SHIOKAWA³, Yusuke EBIHARA⁵, Hampton DONALD⁶, Naomoto IWAGAMI¹ (1.Earth & Planet. Sci., The Univ. of Tokyo, 2.NIPR, 3.Nagoya Univ., STEL, 4.Dept. of Geophys., Tohoku Univ., 5.Kyoto Univ., RISH, 6.GI, Univ. of Alaska Fairbanks)