The following data are snowmelt runoff (ft3/sec) for the South Fork (area = 216 mi') of the Rio Grande at South Fork, Colorado, for April 1, 1976, to September 30, 1976. If a recession is defined as a...

The following data are snowmelt runoff (ft3/sec) for the South Fork (area = 216 mi') of the Rio Grande at South Fork, Colorado, for April 1, 1976, to September 30, 1976. If a recession is defined as a period of four or more days in which the runoff rate did not increase, derive a recession curve with the model of Equation 12-17 for the months of April and May.