About MATSUOKA NAOKI
About 日本気象協
About MATSUOKA NAOKI
About 北海道気象技術センター
About 寒地土木技術研究
About Hokkaido
About mudflow deposit damage
About heavy rainfall
About meteorological phenomenon
About typhoon
About characteristic
About geomorphology
About rainfall
About mountain
About arrangement
About atmospheric pressure
About heavy rain disaster
About topographical features
About Hidaka Mountains
About pressure pattern
About Mesoscale disturbance,characteristic of precipitation
About Large-scale disturbance,typhoon,gravity wave of the atmosphere
About Meteorology in general
About Physical geography
About General,sabo engineering
About Slope stability,deformation by excavating
About Natural disasters
About 北海道
About 豪雨災害
About 報告
About 気象
About 概要