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A 30 mi? catchment that is neither extremely wet nor dry receives a uniform 3 in of rainfall over 6 hours. The catchment is 50% forested, 20% meadow, 20% rangeland (good condition), and 10% paved roads. The entire catchment is underlain by a shallow silty clay loam, classified as SCS Hydrologic Soil Group C. Find: a. Effective precipitation (P*): b. Fraction of effective precipitation (P*/P): c. Event flow (Q*) : d. If the same rainstorm fell when the catchment was very wet from prior storms, how do you predict that P* and Q* would change relative to what you calculated for a 'normal' antecedent wetness?

A 30 mi? catchment that is neither extremely wet nor dry receives a uniform 3 in of rainfall over 6 hours. The catchment is 50% forested, 20% meadow, 20% rangeland (good condition), and 10% paved roads. The entire catchment is underlain by a shallow silty clay loam, classified as SCS Hydrologic Soil Group C. Find: a. Effective precipitation (P*): b. Fraction of effective precipitation (P*/P): c. Event flow (Q*) : d. If the same rainstorm fell when the catchment was very wet from prior storms, how do you predict that P* and Q* would change relative to what you calculated for a 'normal' antecedent wetness?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 30 mi? catchment that is neither extremely wet nor dry receives a uniform 3 in of rainfall over 6 hours. The catchment is 50% forested, 20% meadow, 20% rangeland (good condition), and 10% paved roads. The entire catchment is underlain by a shallow silty clay loam, classified as SCS Hydrologic Soil Group C. Find: a. Effective precipitation (P*): b. Fraction of effective precipitation (P*/P): c. Event flow (Q*) : d. If the same rainstorm fell when the catchment was very wet from prior storms, how do you predict that P* and Q* would change relative to what you calculated for a 'normal' antecedent wetness?
Transcribed Image Text:A 30 mi? catchment that is neither extremely wet nor dry receives a uniform 3 in of rainfall over 6 hours. The catchment is 50% forested, 20% meadow, 20% rangeland (good condition), and 10% paved roads. The entire catchment is underlain by a shallow silty clay loam, classified as SCS Hydrologic Soil Group C. Find: a. Effective precipitation (P*): b. Fraction of effective precipitation (P*/P): c. Event flow (Q*) : d. If the same rainstorm fell when the catchment was very wet from prior storms, how do you predict that P* and Q* would change relative to what you calculated for a 'normal' antecedent wetness?
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