Computer · Hydrology
The observed runoff due to a 12-hour storm of uniform intensity 0.5 cm/h was a triangular direct runoff hydrograph with a base of 64 hours and a peak discharge of 30 m3/s. If the catchment area is 120 km2, the φ-index for the basin is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11.20 cm/h
- 20.26 cm/h✓
- 30.52 cm/h
- 40.88 cm/h
Correct answer
0.26 cm/h
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