c) The development of upstream area of a watershed has been recognized as a critical issue for the local authority becau

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C The Development Of Upstream Area Of A Watershed Has Been Recognized As A Critical Issue For The Local Authority Becau 1 (41.02 KiB) Viewed 46 times

c) The development of upstream area of a watershed has been recognized as a critical issue for the local authority because the downstream section of the river has frequently experienced the major flood events. Therefore, a hydrological study shall be carried out to investigate the magnitude of flood based on the observed upstream discharge. The continuous discharge of the upstream section of the main river draining the watershed has been recorded and is shown in Table Q2b. Route the following hydrograph through a river reach for which Muskingum Storage Function parameters k = 60 min and x = 0.2. Derive the peak discharge of the downstream flood. At the start of the inflow flood calculation, the initial outflow at downstream is 10 m³/s. Table Q2b: Upstream Discharge of a River Reach Time (min) Q(m³/s) Time (min) Q (m³/s) -0 10 270 19 30 15 300 17 60 25 330 16 90 32 120 150 31 28 360 390 420 14 12 10 180 25 450 10 210 22 480 10 240 20