Problem:
Using the data from problem 1.9, what is the runoff coefficient?
Solution:
The following are given:
\begin{align*}
\text{Area}, A & = 2500 \ \text{km}^2 \\
\text{Precipitation}, P & = 130\ \text{cm} \\
\text{Outflow}, O & = 30\ \text{m}^3/\text{s}
\end{align*}To compute for the runoff coefficient, the formula to be used is
\text{runoff coefficient} = \frac{\text{outflow}}{\text{inflow}}The inflow is the precipitation at 130 cm and the outflow is computed in Problem 1.9 as 37.8432 cm.
Substituting the given values into the formula,
\begin{align*}
\text{runoff coefficient} & = \frac{\text{outflow}}{\text{inflow}} \\
\text{runoff coefficient} & = \frac{37.8432\ \text{cm}}{130\ \text{cm}} \\
\text{runoff coefficient} & = 0.2911
\end{align*}Therefore, the runoff coefficient is \boxed{0.2911}.
Hydrology and Floodplain Analysis 5th Edition by Bedient et. al. Chapter 1 Problems
Hydrology and Floodplain Analysis 5th Edition by Bedient, Huber and Vieux
Chapter 1: Hydrologic Principles
Chapter 2: Hydrologic Analysis
Chapter 3: Frequency Analysis
Chapter 4: Flood Routing
Chapter 5: Hydrologic Simulation Models
Chapter 6: Urban Hydrology
Chapter 7: Floodplain Hydraulics
Chapter 8: Ground Water Hydrology
Chapter 9: Design Applications in Hydrology
Chapter 10: GIS Applications in Hydrology
Chapter 11: Radar Rainfall Applications in Hydrology
Chapter 12: Severe Storm Impacts and Flood Management
Chapter 9: Design Applications in Hydrology
Chapter 10: GIS Applications in Hydrology
Chapter 11: Radar Rainfall Applications in Hydrology
Chapter 12: Severe Storm Impacts and Flood Management
Chapter 13: Case Studies in Hydrologic Engineering: Water Resource Project
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