31.5 - Estimation of Infiltration Indices from Hydrographs
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Practice Questions
Test your understanding with targeted questions
What is a hydrograph?
💡 Hint: Think about what it represents in terms of water flow.
Why are initial losses important in the calculation of infiltration indices?
💡 Hint: Consider what happens to the water before it infiltrates.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the φ-index represent?
💡 Hint: Recall the definition from our discussions.
True or False: Initial losses must be considered when calculating W-index.
💡 Hint: Think about the definition of W-index.
1 more question available
Challenge Problems
Push your limits with advanced challenges
You have rainfall data showing 100 mm over a 4-hour storm. The hydrograph indicates direct runoff of 70 mm, and initial losses are estimated at 25 mm. Calculate both the φ-index and W-index.
💡 Hint: Break down the calculations step by step.
Discuss the potential consequences of overlooking initial losses when estimating runoff in an urban drainage system.
💡 Hint: Consider the role of initial conditions in runoff generation.
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