cee5734_week10_2011 - CEE 5734 Urban Hydrology and...

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Glenn E. Moglen Department of Civil & Environmental Engineering Virginia Tech Continuous Streamflow Modeling with SWMM CEE 5734 – Urban Hydrology and Stormwater Management Week 10
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Questions Final Exam will be May 4 (last class meeting) Continuous Streamflow Modeling Basic Idea Why we do it How we do it Where to obtain files Rainfall Observed Streamflow Simulated Streamflow Calibrating Quantifying Goodness-of-fit Today’s Agenda
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In contrast to “Event Based” modeling which we have been doing all semester to this point, continuous streamflow modeling attempts to model the streamflow behavior of the watershed over periods of both wet and dry weather. Storms produce flood flows with “recovery periods” in between in which the watershed returns to baseflow conditions. Continuous Streamflow Modeling: Concept
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1. Once a model is calibrated for a particular watershed, it becomes possible to predict future streamflow behavior under changed land use and/or climate. 2. When predicting pollutant or nutrient loads that are mobilized or transported by streamflow, it is important to first be accurately representing the flow before the transport can be accurately represented.
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