How do you calculate the runoff coefficient for a given area?
To figure out the runoff coefficient for an area, here’s what you do:
Check Out the Surface Types: Look at what kinds of surfaces are in the area, like asphalt, grass, or concrete. Different surfaces handle rain differently.
Get the Rain and Runoff Data: Find out how much rain fell and how much of it turned into runoff. This might come from measurements or estimates.
Use Standard Values: If you don’t have exact numbers, you can use standard values for different types of surfaces to get a rough idea.
Calculate the Coefficient: Determine the fraction of the rain that turns into runoff based on your data or standard values.
This will give you an idea of how much of the rain ends up as runoff for that area.
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