Hydrology Terminology

Watershed

Streamflow

-cross-section area

-Manning’s “n”

Routing

Reservoirs

Channel

Precipitation

Snow

Runoff

Infiltration

Unit hydrograph

Timing

Flooding

Flow

Grade lines

Land Use

Frequency

• Streamflow is the movement of water through a channel.

• The cross-sectional area of a stream is the region bounded by the walls of the stream and the water surface. The cross-sectional area is illustrated below.

• See also Manning’s “n”.

Stream Flow

Cross-sectional Area

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