This is for water resources Engineering. Please show steps and formulas so I can understand.
Extracted text: 1) The inflow hydrograph generated by a 100 year storm is given in the Table 1. A flood control reservoir has spillway crest with elevation of 105 meters. The reservoir has the elevation-storage-discharge relationship shown on Table 2. Assuming the reservoir is initially at the elevation of 103 meters, determine the outflow hydrograph and compute the reduction of peak flow in percentage (%). Plot the inflow and outflow hydrographs. Table 1 Time (hr) Inflow (m/s) 10 12 20 24 30 36 40 48 30 60 25 72 15 84 10 Table 2 Storage (x10$ m³) 50 Elevation (m) Outflow (m³/s) 100 101 102 103 104 60 70 80 92 8. 105 105 17 27 40 106 120 107 140