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Hydrograph

HYDROGRAPH ANALYSIS. Hydrograph. 1. HYDROGRAPH ANALYSIS. 2. HYDROGRAPH ANALYSIS. 3. HYDROGRAPH ANALYSIS. Components of Hydrograph of Isolated Storm. 4. HYDROGRAPH ANALYSIS. 5. HYDROGRAPH ANALYSIS. 6. HYDROGRAPH ANALYSIS. Segments of Hydrograph of an Isolated Storm. 7.

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Hydrograph

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  1. HYDROGRAPH ANALYSIS Hydrograph 1

  2. HYDROGRAPH ANALYSIS 2

  3. HYDROGRAPH ANALYSIS 3

  4. HYDROGRAPH ANALYSIS Components of Hydrograph of Isolated Storm 4

  5. HYDROGRAPH ANALYSIS 5

  6. HYDROGRAPH ANALYSIS 6

  7. HYDROGRAPH ANALYSIS Segments of Hydrograph of an Isolated Storm 7

  8. HYDROGRAPH ANALYSIS Segments of Hydrograph of an Isolated Storm 8

  9. HYDROGRAPH ANALYSIS Factors Affecting Flood Hydrograph 9

  10. HYDROGRAPH ANALYSIS Base Flow Separation 10

  11. HYDROGRAPH ANALYSIS 11

  12. HYDROGRAPH ANALYSIS 12

  13. HYDROGRAPH ANALYSIS 13

  14. HYDROGRAPH ANALYSIS 14

  15. HYDROGRAPH ANALYSIS 15

  16. HYDROGRAPH ANALYSIS 16

  17. HYDROGRAPH ANALYSIS Computation of Direct Surface Runoff (DSR) from a Storm 17

  18. HYDROGRAPH ANALYSIS 18

  19. HYDROGRAPH ANALYSIS 19

  20. HYDROGRAPH ANALYSIS 20

  21. HYDROGRAPH ANALYSIS 21

  22. HYDROGRAPH ANALYSIS 22

  23. HYDROGRAPH ANALYSIS 23

  24. HYDROGRAPH ANALYSIS Unit Hydrograph

  25. HYDROGRAPH ANALYSIS Assumptions in Derivation of UH Theory

  26. HYDROGRAPH ANALYSIS Derivation of UH from a simple Flood Hydrograph – (Isolated Storm)

  27. HYDROGRAPH ANALYSIS Unit Hydrograph Derivation

  28. HYDROGRAPH ANALYSIS Example-I Calculate and Draw a “Unit Hydrograph” from a Storm Hydrograph, resulting from a Catchment Area of 25 km2. The data is shown in the following table:

  29. HYDROGRAPH ANALYSIS Direct Runoff = 0.36 (∑Q x t) = 0.36 x 822 x 2 = 23.7 cm A 25

  30. HYDROGRAPH ANALYSIS Unit Hydrograph from a Single Flood Hydrograph

  31. HYDROGRAPH ANALYSIS Example-II:-(UH) from a Single Flood Hydrograph (Isolated)

  32. HYDROGRAPH ANALYSIS Limitations and Uses of UH Theory

  33. HYDROGRAPH ANALYSIS Limitations and Uses of UH Theory

  34. HYDROGRAPH ANALYSIS CALCULATION OF STORM HYDROGRAPH FROM THE GIVEN UNIT HYDROGRAPHS OF VARIOUS RAINFALL INTENSITIES

  35. HYDROGRAPH ANALYSIS Case-I Application of the (UH) Theory for the “Construction of a Flood Hydrograph Resulting from Rainfall of Single Duration”

  36. HYDROGRAPH ANALYSIS

  37. HYDROGRAPH ANALYSIS Example:- Calculate Storm Hydrograph of 8 cm Rainfall 4 5

  38. HYDROGRAPH ANALYSIS Case-II Application of Unit Hydrograph Theory “for the Construction of a Flood Hydrograph Resulting from two or more Periods of Rainfall (Multi Duration Rainfall)” from a Single UH

  39. HYDROGRAPH ANALYSIS Procedure

  40. HYDROGRAPH ANALYSIS

  41. HYDROGRAPH ANALYSIS

  42. HYDROGRAPH ANALYSIS

  43. HYDROGRAPH ANALYSIS

  44. HYDROGRAPH ANALYSIS Example:- Calculation of Storm Hydrograph Resulting from Single Unit Hydrograph of Various Rainfall Intensities Contd…..

  45. HYDROGRAPH ANALYSIS

  46. HYDROGRAPH ANALYSIS Case-III S-Hydrograph (S-Curve) Contd…

  47. HYDROGRAPH ANALYSIS

  48. HYDROGRAPH ANALYSIS Computation of S-Hydrograph from Successive Unit Hydrograph Contd…

  49. HYDROGRAPH ANALYSIS This discharge of 144 cumecs will be achieved in the above table at 36 hours (which is equal to base period – T0 hours.)

  50. HYDROGRAPH ANALYSIS Derivation of S-Hydrograph from Series of Unit Hydrograph

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