3:45 PM - 4:00 PM
Nobuo ARAI1, *Takahiko MURAYAMA1, Makiko IWAKUNI1, Saki TANIMOTO2, Daisuke TAKAHASHI2, Yasushi KURIHARA2, Keiji ARAKI2, Masa-yuki YAMAMOTO3 (1.Japan Weather Association, 2.Railway Technical Research, 3.Kochi University of Technology)