Study of stream channel sediment dynamics affected by repeated rainstorm events
Project/Area Number |
22510197
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Natural disaster science
|
Research Institution | University of Miyazaki |
Principal Investigator |
|
Co-Investigator(Renkei-kenkyūsha) |
MAEDA Sachie 宮崎大学, 農学研究科, 大学院修士課程
|
Project Period (FY) |
2010-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 豪雨 / 土砂流出 / 河床変動 / 粗粒化 / 縦横断測量 / 滞留土砂 / 土砂災害 / 土砂管理 / 河床上昇 / 河床低下 / 土砂滞留時間 / 気候変動 / トランスポート・リミッテッド / 気候変化 / 流域 / 土砂移動 / 河床変動モニタリング / 土砂滞留 / 洗掘率 |
Research Abstract |
In recent years heavy rainstorms have remarkably increased. This causes that rain storm events recur at a site at a short time interval. Thus it is necessary to study the influences of repeated rainstorm events on sediment transport in mountain catchments. This study performed a monitoring program of cross-sectional changes of stream channels during 11 years which included two rainstorm events, and describes a series of sediment transport processes in and after the event. This study obtained an inactivating process of post-event sediment transport and its controlling factors.
|
Report
(5 results)
Research Products
(15 results)