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<br />CONTENTS <br /> <br />Page <br />Abstract----------------------------------------______------------------____ 1 <br />Introduction----------------------------------________-----------------_____ 1 <br />Purpose and Scope----------------------------------_______________----- 2 <br />Acknowledgments------------------------------_________----------------_ 2 <br />Data Collection---------------------------------------_____--------------___ 2 <br />rnstrumentation----------------------------------_____----------------- 5 <br />Theoretical stage-discharge relations-----------------------------_____ 5 <br />Station flood-frequency analysis---------------------------_________________ 5 <br />Analysis of recorded floods------------------------------______________ 6 <br />Peak-discharge frequency---------------------------_______________ 6 <br />Flood volume--------------------------------________________------ 6 <br />Analysis of synthetic floods------------------------------_____________ 9 <br />Description of modeled rainfall-runoff data----------------------- 9 <br />Calibration of rainfall-runoff model------------------------------ 10 <br />Synthesis of long-term annual flood series------------------------ 14 <br />Peak-discharge frequency-----------------------------------_______ 16 <br />Flood volume------------------------------------------______------ 17 <br />Regional flood-frequency analysis----------------------------------_________ 17 <br />Multiple regression method-------------------------------------________ 17 <br />Dependent variables----------------------------_________________-- 18 <br />Independent variables-----------------------------------__________ 19 <br />Discussion of regression results--------------------------________ 20 <br />Station-year method----------------------------------______________---- 23 <br />Techniques for estimating the characteristics of flood flows <br />for small watersheds-------------------------------------_______------ 24 <br />Magnitude and frequency of peak discharges----------------------------- 24 <br />Flood volumes--------------------------------------_________----------- 26 <br />Synthetic hydrograph-------------------------------_______~------------ 26 <br />Accuracy and limitations---------------------------------__________---- 26 <br />Summary and conclusions-------------------------------------______---------- 29 <br />Selected references-------------------------------------------_------------- 30 <br />Supplemental data---------------------------------------___________--------_ 35 <br /> <br />ILLUSTRATIONS <br /> <br />i'" <br /> <br />Figure 1. Map showing distribution of rainfall-runoff stations and <br />location of study area---------------------------------------- <br />2. Ranges in discharge for recorded annual peak flows, floods <br />used in model calibration, and flood frequencies from <br />recorded or synthetic data------------------------------------ <br />3-5. Graphs showing: <br />3. Average and maximum rainfall by 5-minute intervals for <br />141 storms-------------------------------------------___ <br />4. Seasonal occurrence of the 141 floods used to calibrate <br />rainfall-runoff model----------------------------------- <br />5. Relation between recorded peak discharge and synthetic <br />peak discharge from model calibrations using 141 <br />floods-----------------------------------------------___ <br /> <br />i i i <br /> <br />Page <br /> <br />3 <br /> <br />7 <br /> <br />12 <br />13 <br /> <br />15 <br />