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ENTRY OF FLOW MEASUREMENT DATA

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

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ENTRY OF FLOW MEASUREMENT DATA

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  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

  18. Airline Correction Wetline Correction

  19. Reading = 3. 5 m Airline depth

  20. Reset counter Reading = 0. 0 m

  21. Reading = 4. 2 m Water depth

  22. 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

  23. OHS - 14

  24. OHS - 15

  25. OBLIQUE FLOW OHS - 21

  26. OHS - 22

  27. OHS - 23

  28. MEAN VELOCITY PROFILE OHS - 24

  29. SEGMENTAL FLOWS OHS - 25

  30. OHS - 26

  31. FLOAT OBSERVATIONS OHS - 27

  32. 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

  33. OHS - 29

  34. OHS - 30

  35. OHS - 31

  36. OHS - 32

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