★ Key Takeaways
Runoff, in Hydrology, Quantity of Water Discharged in Surface Streams. Runoff Also Includes Groundwater That Is Discharged into a Stream; Streamflow That Is Composed Entirely of Groundwater Is Termed Base Flow, or Fair-Weather Runoff, and It Occurs Where a Stream Channel Intersects the Water Table.
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Runoff, in Hydrology, Quantity of Water Discharged in Surface Streams. Runoff Also Includes Groundwater That Is Discharged into a Stream; Streamflow That Is Composed Entirely of Groundwater Is Termed Base Flow, or Fair-Weather Runoff, and It Occurs Where a Stream Channel Intersects the Water Table.
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