Practice Need For Infiltration Indices (31.2) - Infiltration Indices - Hydrology & Water Resources Engineering

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6 sample questions

Question 1.
Define infiltration in your own words.
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Think about what happens when it rains.
Question 2.
What is the purpose of infiltration indices?
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Consider how they relate to runoff.
3Question 3.
What do infiltration indices help estimate?
- Total Rainfall
- Storm Duration
- Effective Rainfall
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Focus on the purpose of these indices.
4Question 4.
T/F: The φ-index considers initial abstraction losses.
- True
- False
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Think about the definitions of both indices.
Question 5.
In a region where the average rainfall is 80 mm during a storm, and through analysis it’s determined that 30 mm runoff occurs and 15 mm in initial losses, calculate the W-index for a storm of 2 hours duration.
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Make sure you plug in the right numbers for P, Q, and I.
Question 6.
Discuss the conditions under which infiltration indices become less effective in predicting runoff.
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Consider the assumptions made when deriving the indices.

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