Japan Geoscience Union Meeting 2016

Presentation information


Symbol H (Human Geosciences) » H-TT Technology & Techniques

[H-TT22] New horizons brought by UAV

Tue. May 24, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Akihiko Kondoh(Center for Environmental Remote Sensing, Chiba University), Hiroshi Inoue(National Research Institute for Earth Science and Disaster Prevention), Hitoshi Hasegawa(Dep.Geography Kokushikan Univ.)

5:15 PM - 6:30 PM

[HTT22-P05] UAV images of before and after the 2014 Hiroshima debris flow disaster

*Kei Tanaka1, Takashi Nakata2 (1.Japan Map Center, 2.Prof. Emeritus, Hiroshima Univ.)

Keywords:2014 Hiroshima debris flow, GIS, Unmanned Aerial Vehicle

Before dawn of August 20, 2014 debris flow caused by a localized torrential downpour attacked out-skirt of Hiroshima City killing 75 people especially on gentle slopes at the foot of granitic mountain.
We described typical examples of human neglect against debris flow that resulted unnecessary loss lives, based on UAV photography taken before after the debris.
We also counted numbers of houses of different construction period in the debris flow area, demolished houses by debris flow and houses of victims, and came to know that ratio of demolished houses and victims were higher in post- high economic growth period.