1. Name one component in hydrologic cycle. (5%) 2, when calculating the runoff f

Question

1. Name one component in hydrologic cycle. (5%) 2, when calculating the runoff for a precipitation, what losses should be considered? 15%) 3. Given a set of rainfall record at one station as follows. Fill out the last column. (10%) Rank 15 minute Rainfall depth (inches) 0.88 0.85 0.83 0.78 Return Period (vears) 23 0.37 convert the rainfall depth to rainfall intensity in the table. (10%) nute Rainfall depth (inches) Rainfall intensity (in/hr) 0.47 0.24 0.33 0.17 If a Horton infiltration equation is given by the equation, fp 12.62e-at+1.72, where t is in minutes and is in inches per hour. a) what is the initial infiltration capacity in inches/hour? (10%) ) what is the final constant infiltration capacity? (10%)

Explanation / Answer

1) Precipitation, Evaporation, runoff are components of hydrologic cycle.

2) Flow of water into the ground (base flow) should be considered for calculating the runoff.

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