Iowa Institute of Hydraulic Research (IIHR) Distributed Parameter Water Shed Model

摘要

IIHR Watershed Model predicts water and sediment discharges from a catchment. The model describes the catchment in fine detail by retaining individual characteristics throughout the watershed and includes overland and channel models of water and sediment flows. The watershed is divided along tributary divides into subcatchments. These subcatchments are then divided along lines of steepest slope into 'streamtubes' such that no flow crosses these divides. The streamtubes are further divided into a cascade of planar elements, called 'streamtube segments', according to slope and retain individual characteristics.