Normal discharge of a river is called what?

Normal discharge of a river is called what?

• A. Delta
• B. Base Flow
• C. Flow
• D. Catchment

Answer: (B)

Base flow is the sustained, underground-sourced discharge that keeps a river flowing even between rainfall events. It comes from groundwater seeping into the river and from delayed drainage of soil moisture, providing a baseline level of water in the channel during dry periods. This distinguishes normal, steady discharge from the rapid, short-term increases that happen after rain (storm flow). Delta describes the landform at a river’s mouth, where sediment is deposited as it enters a larger body of water. A catchment is the drainage basin that collects and drains water into the river. Simply “flow” is the general movement of water and doesn’t specify where that water is coming from. So the normal, steady discharge is best described as base flow.

Base flow is the sustained, underground-sourced discharge that keeps a river flowing even between rainfall events. It comes from groundwater seeping into the river and from delayed drainage of soil moisture, providing a baseline level of water in the channel during dry periods. This distinguishes normal, steady discharge from the rapid, short-term increases that happen after rain (storm flow).

Delta describes the landform at a river’s mouth, where sediment is deposited as it enters a larger body of water. A catchment is the drainage basin that collects and drains water into the river. Simply “flow” is the general movement of water and doesn’t specify where that water is coming from. So the normal, steady discharge is best described as base flow.