RIVER CHANNEL INCERSTIGATION BY USING AIRBORNE LIDER SURVEY BETWEEN BEFORE AND AFTER THE FLOOD IN TEDORI RIVER

Abstract

This study was conducted to provide quantitative analysis on the change of the river bed due to the flood. The analysis was done by using the Airborn lider survey and other investigations which were done before and after the flood respectively. As a result, tendency of the erosion at the water route was quantitatively understood. Moreover, it is clarified that the tree height and the moments of the running water are affect on the generation of driftwood.