Development of a distributed hydrological model and its application to soil erosion simulation in a forested catchment during storm period

摘要: A spatially distributed Xinanjiang model (DXAJ) has been developed to simulate the hourly hydrological process of a storm event caused by Typhoon No. 11 during period 22–23 August 2001 in Kamafusa Lake catchment, Miyagi Prefecture, Japan. The catchment is divided into 50 × m2 grid cells, and runoff generation component rainfall-runoff applied each cell. An optimal routing order approach used implement routing, i.e. generated cell routed together with upstream inflow from cells downstream according order, which derived simulated stream network. One process-based soil erosion coupled onto this suspended solids are cells. simulation results good agreement observed hydrograph pollutograph. was improved through consideration rainfall intensity model. Copyright © 2003 John Wiley & Sons, Ltd.