The role of unit hydrograph theory in the flood prediction process is to provide an estimate of streamflow that results from a given amount precipitation. A unit hydrograph shows the temporal change in flow, or discharge, per excess unit of precipitation runoff. This module offers a thorough introduction to the use of unit hydrographs and the application of unit hydrograph theory in flood prediction. Key terminology and assumptions, the process of creating a unit hydrograph and application of unit hydrograph theory to forecast situations are all explored through comprehensive animations and interactions.
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hydrology, hydrologic cycle, unit hydrograph, unit hydrograph theory, hydrograph, flood prediction, flood prediction process, basin-averaged rainfall, basin-averaged, basin, rainfall runoff, rainfall runoff model, excess rainfall, quick-response runoff, quick-response hydrograph, excess precip, excess precipitation, direct runoff, quickflow, runoff, streamflow, baseflow, synthetic hydrograph, synthetic unit hydrograph, runoff model, baseflow separation, rising limb, falling limb, inflection point, recession curve, time to peak, time of concentration, duration of excess precipitation, convolution, 6-hour unit hydrograph, 12-hour unit hydrograph, watershed, streamflow
