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2 cards from this section. Quick, good the night before a test.
What is runoff?
Think about what happens to rain that doesn’t soak into the ground.
What does the SCS-CN method estimate?
Recall the factors that influence this method.
What is the primary factor determining the amount of runoff generated after a storm?
Consider the impact of heavy rainfall on saturated soils.
True or False: Higher curve numbers indicate a higher likelihood of infiltration.
Reflect on how curve numbers are defined.
Calculate the runoff if the precipitation is 150 mm and the losses are 30 mm.
Use the formula for runoff.
Evaluate how different types of land uses can change the curve number and consequently the runoff in a watershed area.
Picture how each land use affects soil saturation and perviousness.
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