Modeling Metals In Stormwater Runoff At Multiple Time And Spatial Scales
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.
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Document Type: Research Article
Publication date: 2007-01-01
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