The coefficient of runoff is defined as what ratio?

The coefficient of runoff is defined as what ratio?

• A. Runoff/rainfall
• B. Rainfall/runoff
• C. Infiltration/rainfall
• D. Rainfall/infiltration

Answer: (A)

The coefficient of runoff is defined as the ratio of runoff to rainfall. This ratio helps to quantify how much of the precipitation that falls on a surface actually becomes runoff, as opposed to being absorbed into the soil or evaporating. In hydrology, understanding this relationship is crucial for managing water resources, predicting flooding, and assessing the environmental impacts of land use changes. A higher coefficient indicates that a larger portion of the rainfall is being converted to runoff, which can be indicative of impervious surfaces like roads and buildings that prevent water from infiltrating the soil. This information is vital for hydrological modeling and effective watershed management.

The coefficient of runoff is defined as the ratio of runoff to rainfall. This ratio helps to quantify how much of the precipitation that falls on a surface actually becomes runoff, as opposed to being absorbed into the soil or evaporating.

In hydrology, understanding this relationship is crucial for managing water resources, predicting flooding, and assessing the environmental impacts of land use changes. A higher coefficient indicates that a larger portion of the rainfall is being converted to runoff, which can be indicative of impervious surfaces like roads and buildings that prevent water from infiltrating the soil. This information is vital for hydrological modeling and effective watershed management.