A detention pond has been built and the characteristics of the catchment and the pond are...

  

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A detention pond has been built and the characteristics of the catchment and the pond are detailed in Tables A1-A3. Plot the hydrograph of the inflow and outflow of the pond. Time (day) Flow (m/s) Elevation (m) Store (m¹) Table A1: Flow from the catchment (inflow of the pond) Elevation (m) Outflow (m/s) 15.2 0 0.5 1 1.5 2 2.5 3 3.5 0 2 5.2 10.2 13.6 8.5 4.7 2.3 15.3 0 15.4 15.5 15.6 284,934 304,670 341,674 386,079 435,418 493,392 557,533 627,841 Table A2: Storage data 15.2 15.3 15.4 1.1 Table A3: Outflow data 3 15.5 15.6 5.5 8.4 15.7 15.7 15.8 11.8 (20 Marks) 15 4 0 15.8 15.9 15.9 19 1 A detention pond has been built and the characteristics of the catchment and the pond are detailed in Tables A1-A3. Plot the hydrograph of the inflow and outflow of the pond. Time (day) Flow (m/s) Elevation (m) Store (m¹) Table A1: Flow from the catchment (inflow of the pond) Elevation (m) Outflow (m/s) 15.2 0 0.5 1 1.5 2 2.5 3 3.5 0 2 5.2 10.2 13.6 8.5 4.7 2.3 15.3 0 15.4 15.5 15.6 284,934 304,670 341,674 386,079 435,418 493,392 557,533 627,841 Table A2: Storage data 15.2 15.3 15.4 1.1 Table A3: Outflow data 3 15.5 15.6 5.5 8.4 15.7 15.7 15.8 11.8 (20 Marks) 15 4 0 15.8 15.9 15.9 19 1

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