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<br />6) U.S. Geological Survey, Techniques for <br />Estimating Regional Flood Characteristics of <br />Small Rural Watersheds in the Plains Region <br />of Eastern Colorado, Water Resources Investi- <br />gations Report 87-4094, 1987. <br /> <br />7) U.S. Geological Survey, Estimation of <br />Natura.l streamflow Characteristics in Western <br />Colorado, Water Resources Investigations <br />Report 85-4086,1985. <br /> <br />Simulation <br /> <br />Simulation is a methodoloqy th2lt seeks to simulate the <br />continuous streamflow that would result from other <br />hydrologic data for which continuous data for a signif- <br />icant period of record exists. Simulation generally <br />involves the use of a computer model that has been <br />calibrated to a few historic events for which there is <br />stream::low data. Precipitation data from several <br />stations within the watershed can b,~ used in the hydro- <br />lo,ric model to predict :st:r'eamflows as a function of time <br />at one or more locations within the watershed for the <br />full period of rainfall record. Simulation is general- <br />ly a very costly method of developing flood flow fre- <br />quency relationships within a watersh,=d but: is techni- <br />cally very sound for the.ratershed which has an abun- <br />dance of rainfall data but very little in the way of <br />streamflow data. The simulation method possesses an <br />advantage over the design storm method of analysis in <br />as much as it accounts for random variables such as <br />rainfall temporal patterns and antecedent moisture <br />condition. The computer model that is selected for use <br />in a cc,ntinuous simulation usually invol vEts a model <br />such as the Stanford Watershed Model or thE) Stormwater <br />Management Model which have the capacity to predict <br />loss rate recovery during dry periods. Popular single <br /> <br />"l <br />