Record Display for the EPA National Library Catalog

RECORD NUMBER: 39 OF 59

Main Title Statistical Analysis of Hydrograph Characteristics for Small Urban Watersheds.
Author Ham, D. W. ; Morga, C. W. ; Reede, H. A. ;
CORP Author TRACOR, Inc., Austin, Tex.
Year Published 1973
Report Number TRACOR-T73-AU-9559-U; DI-14-31-0001-3737; OWRR-C-3286(3737); 04459,; C-3286(3737)(1)
Stock Number PB-228 131
Additional Subjects Surface water runoff ; Urban areas ; Statistical analysis ; Nomographs ; Mathematical models ; Regression analysis ; Urban hydrology
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-228 131 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 164p
Abstract
The purpose was to obtain equations which predict the 30-minute unit hydrograph for small urban watersheds. Equations were derived for models of the product form that correlate basin topographical features with hydrographic parameters. The models were transformed by natural logarithms so that linear regression methods could be used to obtain estimates of the exponents in the equations. The equations were applied to a wide variety of watersheds to demonstrate their validity. Confidence intervals were derived for the estimation of each hydrographic parameter. Nomograms were supplied to provide fast and accurate solutions for each equation.