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RECORD NUMBER: 156 OF 162

Main Title Variation of Urban Runoff with Duration and Intensity of Storms.
Author Well, Dan M. ; Austi, T. Al ; Coo, Billy Cy ;
CORP Author Texas Tech Univ., Lubbock. Water Resources Center.
Year Published 1971
Report Number WRC-71-5; DI-14-31-0001-3131; OWRR-B-064-TEX; 00816;
Stock Number PB-204 235
Additional Subjects ( Storms ; Surface water runoff) ; ( Surface water runoff ; Urban areas) ; Mathematical models ; Watersheds ; Precipitation(Meteorology) ; Water quality ; Probability theory ; Statistical analysis ; Computerized simulation ; Floods ; Water pollution ; Regression analysis ; Mathematical prediction ; Monte Carlo method ; Texas ; Lubbock(Texas)
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NTIS  PB-204 235 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 161p
Abstract A simulation model describes the quantitative and qualitative regimes of storm water runoff from urban watersheds. The urban runoff system consists of three basic subsystems: Precipitation, runoff, and quality. Each of the three subsystems is mathematically modeled using probability and statistical techniques. Major flooding in the High Plains of Texas is associated with short-duration high-intensity convective storms. The model assumes these short-duration precipitation events are random and governed by a stationary probability distribution function. A bivariate log-normal distribution function fits the observed rainfall depths and durations for Lubbock, Texas. The runoff process is modeled by using the British Road Research Laboratory method, which assumes that all runoff is derived from interconnected impervious areas. Rainfall inputs are simulated by the Monte Carlo method. The outflow hydrograph is generated by single-step reservoir routing. The total pollutant load is predicted by a multiple regression involving the storm characteristics and the antecedent conditions. (Author)
Supplementary Notes Prepared in cooperation with Texas Tech Univ. Lubbock. International Center for Arid and Semi-Arid Land Studies, Rept. no. ICASALS-SR-47.
NTIS Title Notes Project Completion rept..
PUB Date Free Form Aug 71,
Category Codes 13B; 4B; 8H; 60D; 64H
NTIS Prices PC A08/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326522838
Origin NTIS
Type CAT