
	Watershed Assessment of River Stability & Sediment Supply (WARSSS)

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	EPA Home > Water > Wetlands, Oceans, & Watersheds > Watersheds > Tools > WARSSS > PLA > Sediment Rating Curves: Step 15

Convert to Dimensional Flow Duration Curve

The bankfull discharge is multiplied times each of the ratios to convert to actual discharge values representing mean daily discharge for each percentile. An example of a dimensioned flow-duration curve using bankfull discharge to convert from the dimensionless relation (Figure 118) is shown in Figure 121 (PDF, 13 kb, 1 p.).

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Prediction Level
Assessment

Steps

Hydrologic Relations
   1. USGS Regional Curves
   2. Drainage Area
   3. Field Calibration
   4. Final Determination
Stream Morphology
   5. Stream Classification
   6. Dimensionless Ratios
Stability Analysis
   7. Channel Stability
   8. Bank Erosion Prediction
   9. Bank Erosion Rates
Flow/Sediment Relations
Sediment Rating Curves
  10. Flow Modifications
  11. Dimensionless Flow
  12. Bankfull Q & Sediment
  13. Dimensionless SRCs
  14. Bedload Rating
  15. Flow Duration Curves
  16. Flow-Related Yield
  17. Flow-Related Increases
Supply Changes
  18. Channel Changes
  19. Bedload Transport
  20. Hillslope Processes
  21. Hillslope Sediment
  22. Entrainment Calculation
Stability Consequences
  23. Sed. Transport Changes
  24. Aggradation Potential
  25. Degradation
  26. Enlargement
Summary Analysis
  27. State Shift
  28. Total Sediment
  29. Departure Analysis
  30. ID Loads by Category