ENTRY OF FLOW MEASUREMENT DATA

1. ENTRY OF FLOW MEASUREMENT DATA • FLOW & ASSOCIATED LEVEL MEASUREMENT • STAGE-DISCHARGE RELATIOSHIP • DISCHARGE BY VELOCITY-AREA METHOD • FLOATS • SLOPE-AREA METHOD • PRIMARY MODULE (SWDES) PROVIDES DATA ENTRY FORMS DEDICATED TO SUCH REQUIREMENT • DETAILED FLOW MEASUREMENTS • SUMMARY STAGE-DISCHARGE • HISTORICAL OBSERVATIONS • CROSS-SECTION PROFILE DATA OHS - 1

2. OHS - 2

3. OHS - 3

4. OHS - 4

5. OHS - 5

6. 1.2 m/s 1.0 m/s 0.8 m/s 0.6 m/s VELOCITY DISTRIBUTION IN RIVER CROSS SECTION OHS - 6

7. b19 b18 b17 b8 b7 b6 b5 b4 b3 b2 b1 D4, V4 FLOW MEASUREMENT - AREA VELOCITY METHOD OHS - 7

8. b19 b18 b17 b8 b7 b6 SECTIONS b5 b4 b3 b2 b1 SEGMENT FLOW MEASUREMENT - AREA VELOCITY METHOD

9. COMPARTMENT 1 COMPARTMENT 2 FLOW MEASUREMENT - AREA VELOCITY METHOD

10. OHS - 8

11. OHS - 9

12. DATA ENTRY FORMS • DEDICATED DATA ENTRY FORMS • GENERAL & GAUGE INFORMATION • CURRENT METERING OBSERVATIONS • FLOAT OBSERVATIONS • SLOPE OBSERVATIONS • SUMMARY STAGE-DISCHARGE DATA OHS - 10

13. OHS - 11

14. OHS - 12

15. OHS - 13

16. OHS - 14

17. Water depth

19. Airline Correction Wetline Correction

20. Reading = 3. 5 m Airline depth

21. Reset counter Reading = 0. 0 m

22. Reading = 4. 2 m Water depth

23. Observed depth =4.35 m =4.2+0.15 m Total correction = 0.15m Reading = 3.5 m Reset the counter Reading = 0.0 m

24. OHS - 14

25. OHS - 15

26. OBLIQUE FLOW OHS - 21

27. OHS - 22

28. OHS - 23

29. MEAN VELOCITY PROFILE OHS - 24

30. SEGMENTAL FLOWS OHS - 25

31. OHS - 26

32. FLOAT OBSERVATIONS OHS - 27

33. FLOW ESTIMATE BY SLOPE-AREA METHOD • HIGH STAGES WHEN VELOCITIES ARE DIFFICULT TO MEASURE • ESTIMATE CAN BE BASED ON SLOPE-AREA METHOD • SLOPE OF WATER SURFACE PROFILE IS OBSERVED • MANNING’S EQUATION USED TO GET DISCHARGES OHS - 28

34. OHS - 29

35. OHS - 30

36. OHS - 31

37. OHS - 32