Calibration of Distributed Rainfall-Runoff Model For Green Infrastructure Assessment In Hamilton County, Ohio.

Nestor Alonso Mancipe Muñoz, Steven G. Buchberger and Makram Suidan

ABSTRACT

Appropriate parameter estimation for assessing green infrastructure alternatives in Combined Sewer Systems is becoming more important in rainfall-runoff modeling. This paper shows the result of the calibration of ten individual storm events in a distributed rainfall-runoff model in SWMM5 for addressing Green Infrastructure assessment in a combined sewer system. High detail rainfall and flow measurements were used. A gradient- based approach was implemented for both parameter estimation and sensitivity analysis. Although emphasis in calibration of single events is made, a comparison of single storm events calibration against continuous event calibration is presented. Analysis of estimated values and sensitivity of parameters in the rainfall-runoff model is made.


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