Satellite-based mapping of riverbed height

Miyamura, Hiroko  ; Esumi, Ayako; Yamada, Susumu  ; Machida, Masahiko  

Detailed elevation models of river areas are in demand for a variety of applications, such as predicting floods and pollutant dynamics. However, the water flowing in rivers makes it difficult to obtain riverbed depths, even via laser surveying. We therefore propose a method of estimating the riverbed depth based on satellite images and several additional measurement data. Furthermore, we present water flow simulation results based on a three-dimensional river model generated using this method.