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<br /> <br />_."--. <br /> <br />l.. <br /> <br />, . <br /> <br />listed in this column represent the translation component of the <br /> <br />unitgraph. The attenuation component was evaluated by routing <br /> <br />tbe Is values by the equation, <br /> <br />q = Is + K - K1s ' <br />qa <br />in which q = unitgraph discharge, cfs, at the aesignated time, <br /> <br />hours; <br /> <br />Is = average discharge, inflow, for the time 'intervalt. <br /> <br />K = routing constant for time interval t; <br /> <br />qa = the preceding unit graph discharge. .Note: <br /> <br />q =0 <br />a <br /> <br />at time 0; as computations progress, each q becomes <br /> <br />qa for the next computation, <br /> <br />As shown in Table A-3, computation of the recession limb of the <br /> <br />unitgraph was not completed. It,was not necessary in this instance <br /> <br />because the unitgraph discharges were used in our ADP program <br /> <br />FGRAPH which includes provision for completing the unitgraph compu- <br /> <br />. tation. The partial hydrograph volume computations listed in <br /> <br />.... <br />Table A-3 and the notation of Lpg under remarks were made for <br /> <br />information and checking purposes. <br /> <br />Excess Precipitation <br /> <br />There are practically no; ",1 available for retention loss rates <br /> <br />actually derived from raie. :ll-runoff analyses within the South Platte <br /> <br />River basin above Narrows .: ll'.lsite. It would seem that the large <br /> <br />storm of May 4-8, 1969, audresulting flood runoff should provide <br /> <br />.' <br /> <br />14 <br /> <br />~-~.... . .-. . ,-~., <br /> <br />.'~~:~...~.....-;..~,. <....;.r:~.. <br /> <br />. W'"'! <br /> <br />. <br />