2012.4-2013.3 Yearbook of NILIM
Research Summary


Research Center for Disaster Management

Reference Number Y121302
Title Advancement of method for evaluating impacts on river-bed variation on the basis of sediment discharge monitoring data
Start-End Date 2010.4-2013.3
Division Erosion and Sediment Control Division
Author Head, Atsushi OKAMOTO
Senior Researcher, Taro UCHIDA
Researcher, Shin-ichiro HAYASHI
Summary For advancement of method for evaluating impacts on river-bed variation on the basis of sediment discharge monitoring data, we implemented development of the methodology of sediment measurement by using hydrophone for bed load and analyzing of observation data. As a result of comparison between observation data of hydrophone, direct sampling and accumulated sediment in check dams, the sediment measurement by using hydrophone has applicability to measure the quantity of bed load.