Application of Backpack-Mounted Mobile Mapping System and Rainfall-Runoff-Inundation Model for Flash Flood Analysis

被引：7

作者：

Sayama, Takahiro ^{[1
]}

Matsumoto, Koji ^{[2
]}

Kuwano, Yuji ^{[3
]}

Takara, Kaoru ^{[4
]}

机构：

[1] Kyoto Univ, Disaster Prevent Res Inst, Uji, Kyoto 6110011, Japan

[2] Kyoto Univ, Grad Sch Engn, Nishikyo Ku, Kyoto 6158540, Japan

[3] Leica Geosyst KK, Minato Ku, 1-4-28 Mita, Tokyo 1080073, Japan

[4] Kyoto Univ, Grad Sch Adv Integrated Studies Human Survivabil, Sakyo Ku, Yoshida Nakaadachi 1, Kyoto 6068306, Japan

来源：

WATER | 2019年 / 11卷 / 05期

关键词：

mobile mapping system; RRI model; high-water marks; inundation; Northern Kyushu floods; point clouds; SIMULATION; HYDRO; RIVER; AREA;

D O I：

10.3390/w11050963

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Satellite remote sensing has been used effectively to estimate flood inundation extents in large river basins. In the case of flash floods in mountainous catchments, however, it is difficult to use remote sensing information. To compensate for this situation, detailed rainfall-runoff and flood inundation models have been utilized. Regardless of the recent technological advances in simulations, there has been a significant lack of data for validating such models, particularly with respect to local flood inundation depths. To estimate flood inundation depths, this study proposes using a backpack-mounted mobile mapping system (MMS) for post-flood surveys. Our case study in Northern Kyushu Island, which was affected by devastating flash floods in July 2017, suggests that the MMS can be used to estimate the inundation depth with an accuracy of 0.14 m. Furthermore, the landform change due to deposition of sediments could be estimated by the MMS survey. By taking into consideration the change of topography, the rainfall-runoff-inundation (RRI) model could reasonably reproduce the flood inundation compared with the MMS measurements. Overall, this study demonstrates the effective application of the MMS and RRI model for flash flood analysis in mountainous river catchments.

引用

页数：16