Question 1 The storage - outflow relationship for a small dam is given in Table 1. The inflow hydrograph for the uncontrolled spillway of this dam is tabulated in Table 2. Determine:

1. the outflow hydrograph from the spillway (fill the table and add more rows if necessary),
2. attenuation, translation, and lengthening in the base time of the outflow hydrograph.
3. Draw inflow and outflow hydrographs on the same figure and show the parameters asked in part b on this figure (draw in Excel and paste it here).
4. Comment on the location of peak discharge of outflow hydrograph, i.e. why is it coincident with the inflow hydrograph?

Hint: Use Table 1 values to obtain S=f(Q).

Table 1

Table 2

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