Geomorphological survey for mass-movement hazard assessment |
| |
| Authors: | Yohta Kumaki |
| |
| Institution: | (1) Geographical Survey Institute, Kitasato 1, 305 Tsukuba-shi, Ibaraki, Japan |
| |
| Abstract: | Most natural disasters in mountainous area are caused by mass-movement, which is a process of geomorphic changes. Therefore geomorphological survey is very useful for hazard assessment of mountainous area. The Geographical Survey Institute of Japan has been conducting such geomorphological hazard assessment survey paying attention to dissection process, and has been preparing geomorphological maps to help estimate the disaster potential. In case of the national highway disaster measure survey, 1:5,000 detailed geomorphological maps are made with special emphasis on the mass-movement landforms such as the dissection fronts, i.e., continuous kick lines where landslidings are concentrated, landslide forms, the stream bed deposits, piedmont landforms indicating past debris flows, etc. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
