Hydrograph-based approach to modeling bacterial fate and transport in rivers.

摘要: A new approach, called hydrograph-based is proposed for predicting bacterial concentrations in rivers. The approach relatively simple and efficient terms of data requirements. It uses widely available hydrographs as the main input estimating flow sediment transport parameters responsible under varying conditions. major component a model, VARTBacT model which an extension Variable Residence Time (VART) by including effects unsteady flow, transport, decay/growth processes on fate applicability demonstrated through three case studies, each with distinct conditions: (1) steady low without (2) flood events significant due to watershed inputs, (3) resuspension from streambed. While streambed may be important process during high flows, results this study indicate that most mechanism streams loading hyporheic exchange periods.