6. The following data were collected during a stream gauging operation in a river. Compute the discharge. Distance from the bank (m) 0.0 1.5 3.0 4.5 6.0 7.5 38 9.0 Depth 0.0 1.3 2.5 1.7 1.0 0.4 0.0 Velocity (m/s) at 0.8d 0.0 0.4 at 0.2d 0.0 0.6 0.9 0.7 0|0|0| اداداد 0.6 0.4 0.0 ادها اداباد 0.6 Tolololo 이이이이 0.5 0.4 0.3 0.0 نا اچھا A = 1.5x 113 x Average velocity [D.ad + oved]

The data pertaining to a stream-gauging operation at a gauging site are given in the table below. The rating equation of the current meter is v=0.450 No + 0.004 m/s where N revolutions per second. Table A Stream-gauging Operation Data Distance from left water edge (m) NAMPI 0.0 1.5 4.5 7.5 10.5 13.5 16.5 18.0 Depth y (m) JOHNN-GO 0.0 0.8 1.5 2.4 2.5 1.4 0.7 0.0 Revolution of current meter kept at 0.6 m depth 0 60 80 130 125 52 42 0 Duration of observation (s) 0 90 90 120 120 60 60 0 -Draw the stream cross-section diving it into appropriate number of segments - Calculate the velocity in each segment - Calculate the area of each segment - Calculate segmental discharge -Determine the total discharge of the streami Write your answers correct to three decimal places. Please upload your own handwritten answer in dropbox.

TT DILLU b. The ordinates of the recession limb of a hydrograph are listed below. Assuming that the interflow is negligible, determine the direct runoff and base flow recession constants. Time from Time from Peak Hours Discharge m³/s Discharge m³/s peak hours 0 517 72 134 12 432 84 113 24 318 96 96 36 227 108 72 48 188 120 60 60 153 132 50

Separate the baseflow from the stream flow hydrograph using the straight-line method. What is the baseflow? Calculate the direct runoff hydrograph (DRH) and plot it as an x-y scatter plot. Time (hr) Discharge (cfs) 0.0 60 0.5 54 1.0 50 1.5 90 2.0 137 2.5 176 3.0 200 3.5 198 4.0 140 4.5 97 5.0 60 5.5 40 6.0 35 6.5 32 7.0 29 7.5 24 8.0 22 8.5 20 9.0 20 9.5 19 10.0 19 10.5 18 11.0 18 11.5 18 12.0 17