b) A river discharge was measured using a standard current meter. The water surface elevation is 50 m from a datum. The

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B A River Discharge Was Measured Using A Standard Current Meter The Water Surface Elevation Is 50 M From A Datum The 1 (64.92 KiB) Viewed 14 times

b) A river discharge was measured using a standard current meter. The water surface elevation is 50 m from a datum. The data of river measurement is listed in the table and figure below (Table Q(b) and Figure Q(b)). Determine the discharge of the river using mean section method if the equation of the current meter is:- V = 0.51 Ns + 0.03 Table Q (b) 1 0 2 3 4 0 39.00 58.00 70.00 0 100.00 120.00 180.00 Sub-Section Rotation N at 0.6d Observation time (s) m 8 m + 45 m 5 m 2 +44 m m Figure Q (b) 5 m 3 46 m m 8 m (10 marks) 0 0