Abstract
Snow-melt run-off during thaw causes a large amount of material transport in the river of snow-covered region. We investigated the characteristics of material transport along the main stream of Mogami River from the analysis of the distribution of SS, T-N, T-P and the material transport flux. The distribution of SS, T-N and T-P are obtained by sampling river water. The material transport flux was computed by using the remote sensing data of NOAA/AVHRR.
Dynamic model on the SS concentration by using the equilibrium between erosion and deposition explain the characteristics of observations. The source of SS and T-P is the river bed of the main stream and the source of T-N is the basin.
