Modeling Metals In Stormwater Runoff At Multiple Time And Spatial Scales
Abstract:Watershed models are widely used to describe runoff dynamics and associated pollutant loadings, but are rarely tested for accuracy quantitatively. Here we evaluated the accuracy of the Hydrological Simulation Program – FORTRAN (HSPF) model for predicting concentrations and loads of total suspended solids, copper, and fecal bacteria in Ballona Creek (near Los Angeles, California), an arid, highly-impervious, urban watershed with dynamic flows that can increase by three within an hour due to stormwater runoff. The model was calibrated by collecting data at sub-hourly intervals from small homogeneous land use sites and then validated (Figure 1) with sub-hourly data collected at an instream site that received cumulative discharges from 74% of the watershed.
Document Type: Research Article
Publication date: 2007-01-01
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