Regionalized Partial‐Duration Balanced‐Hydrograph Model

Abstract

For design problems where annual‐event analyses are inappropriate, such as in the case of channel scour due to floods above a threshold, multiple‐event analyses with partial duration series should be used. A procedure for calibrating a partial‐duration, balanced‐hydrograph model for regional design work is presented. The model can be used either as a series of synthetic storm events or as part of a simulation model. Data from Los Angeles were analyzed to develop a model for ungaged urban watersheds in southern California.