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*Isao Kamiisi
Snow and Ice Research Center, NIED
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Hiroto Yamada
Yamagata Office of River and National Highway Tohoku Regional Bureau Mlit
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Osamu Abe
Shinjo Branch, Snow and Ice Research Center, NIED
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Kenji Kosugi
Shinjo Branch, Snow and Ice Research Center, NIED
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Hiroyuki Hirashima
Snow and Ice Research Center, NIED
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Makoto Machida
Machida Construction Co.,Ltd
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Takashi Machida
Machida Construction Co.,Ltd