Assessing the Curve Number Method for Modeling Urban Watershed Stormwater Runoff
Authors: Garrett Seay
This research modeled historical rainfall-runoff processes for urban watersheds in Louisville, KY for a series of extreme rainfall events. Collected precipitation and discharge data used allowed a calibration of the HEC-HMS rainfall-runoff model utilizing the curve number loss method to route the surface flow towards each watershed outlet. The results indicated that stormwater runoff peaks and volume displayed sensitivity to the curve numbers adopted as a function of land cover and soil type.