1. Parameters in Philip's equation for a clay soil are S- 45 cm-h'12 and K 10 cm/h. Determine the cumulative infiltration and the infiltration rate at 0.5-hour increments for a 3-hour period. Plot both as functions of time. Plot the infiltration rate as a function of the cumulative infiltration. Assume continuously ponded conditions. 2. A 5-hr storm over a 15-ac basin produces a 5-in. rainfall: 1.2 in./hr for the first hour, 2.1 in./hr for the second hour, 0.9 in./hr for the third hour, and 0.4 in./hr for the last two hours. Determine the infiltration that would result from the Horton model with k = 1.1/hr, fc = 0.2 in./hr, and f0 = 0.9 in./hr. Plot the overland flow for this condition in in./hr vs. t.
1. Parameters in Philip's equation for a clay soil are S- 45 cm-h'12 and K 10 cm/h. Determine the cumulative infiltration and the infiltration rate at 0.5-hour increments for a 3-hour period. Plot both as functions of time. Plot the infiltration rate as a function of the cumulative infiltration. Assume continuously ponded conditions.
2. A 5-hr storm over a 15-ac basin produces a 5-in. rainfall: 1.2 in./hr for the first hour, 2.1 in./hr for the second hour, 0.9 in./hr for the third hour, and 0.4 in./hr for the last two hours. Determine the infiltration that would result from the Horton model with k = 1.1/hr, fc = 0.2 in./hr, and f0 = 0.9 in./hr. Plot the overland flow for this condition in in./hr vs. t.
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