Abstract
The effectiveness of disaster control based on the aerial laser survey data and the problems thereof have been discussed by taking the emergency measures taken for the river course (natural dam) blocked by the “Iwate-Miyagi Nairiku Earthquake in 2008” as an example. As compared with the conventional aerial photographic survey, the aerial laser survey that collects land-surface data of wider areas has been recognized as an extremely helpful technique to understand the present situation of earthquake disaster more quickly and precisely. However, there are some matters that need technical innovation. This report summarizes the effectiveness and problems based on actual experiences.
