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<br /> - <br /> ELECTRONIC COMPUTER PROCRAM ABSTRACT <br />TITLE OF PROGRAM I PROGRAM NO. . <br />Unit Hydrograph ond T,oSB Rate OptimizatIon '(')~i-C')-I 'J'/iO <br /> t_ .H. lc_,_.) <br />PRI!PARING"'A(ie:"NEv The llydroloRic J';ngineering Center, U.. G. Arnry Corps 01' l';nr~ineers, <br />609 Second Street Davis California Qr,616 <br />AUT HORtS) DATE PROGRAM CO~ETED STATUS OF PROGRAM <br /> ---- <br />Leo R. Beard August 1966 PHASE J ST A~Ep.L_..._..___ <br /> lnit <br />!: PURPOSE OF PROGRAM <br />This program will determine the best unit hydro,~raph and 10SB coefl'icients, <br />within the limits of the mathematical mOdel, to reprOduce a number of floOd <br />hydrographs at a given location from specified rainfall amounts. Automatic <br />plot routines are provided. <br />B. PROGRAM SPECIFICATIONS <br />Program is dimensioned for 3 hydrographs at anyone time with a maximum of 150 <br />flCM ordinates and 150 rainfall ordinates for each hydrograph. <br />c. METHODS <br />C1:ark unit hydrograph technique is used for computation and Snyder unit hydrogra 91 <br />coefficients are derived. A highly flexible loss function based on rain <br />intensity and accumulated loss is used. The gradient optimization methOd is <br />employed. <br />D. EQUIPMENT DET AILS <br />Program requires a FOffi'RAN IV and 8640 "lords of core storage. <br />E. INPUT-OUTPUT <br />Card input and printer output. <br />F. ADDITIONAL REMARKS <br />This program has been combined with a number of smaller programs to make a <br />package for more efficient use, maximum flexibility and ease of operational <br />control. See program abstract for program no. 723-X6-L2100 for further details <br /> <br />EMG FORM <br />, AUG 60 <br /> <br />, <br /> <br />2883 <br /> <br />(BIll 111t1-1-1110) <br /> <br />PREVIOUS EDITIONS ARE OBSOL.ETE. <br /> <br />4 <br />