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Flood Frequency and Storm Runoff of Urban Areas of Memphis and Shelby County, Tennessee

U.S. Geological Survey, Water-Resources Investigations Report 84-4110

by Braxtel L. Neely, Jr.

Table of Contents



Physical setting

Approach to problem

Data collection

Rainfall-runoff model

Model calibration

Runoff simulation

Peak-discharge and storm runoff frequency curves

Regionalization of peak discharge and runoff

Basin characteristics

Regression analyses

Peak discharge equations

Storm runoff equations

Accuracy of regression analyses

Application of estimating techniques

Discharge hydrographs

Lag time

Unit hydrograph


Peak discharge from unit hydrograph

Estimation of discharge hydrographs


Selected references

Supplement A -- Location and annual peak data for gaging stations

Supplement B -- Maximum measured rainfall intensities at gaging stations





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