An Event-based Procedure for Estimating Monthly Sediment Yields
ABSTRACT Asimple model is proposed for estimating the short-term sediment yields often needed in studies of nonpoint source water pollution and sediment control. The model consists of a two-stage computation which separately considers the generation of sediment supply and its subsequent transport by runoff. Inputs include daily temperature and precipitation records and parameters for the Universal Soil Loss and curve number equations. Testing over a 25-month period for an 850 km2 New York watershed indicated that the model explained 95% of the observed monthly variation of sediment yields