土砂崩壊前兆現象モニタリングシステムの開発

抄録

Previous notice phenomena a few hours before earth failures must be observed in the sediment disaster areas. In this study, underground sound meters (low frequency sound and oscillation sound pressure), gamma ray scintillation counters, and rainfall meters and disdrometers when needed, were employed as monitors for a previous notice, and installed in the experiment fields. A few example data were introduced, but the thresholds of a previous notice were not determined.