As water in the stream channel flows, it encounters friction; the friction slows the forward movement. The shape,size, and roughness affect the amount of friction. High friction slows the stream significantly.
Stream velocity is dependent of four things. They are, the flow type, the gradient, the channel shape, and the discharge of the stream. Streams will flow faster in narrow channels on steeper grades.
Because of the high altitude, these winds are not subject to much friction, hence they are faster than winds closer to earth's surface.
Because of the high altitude, these winds are not subject to much friction, hence they are faster than winds closer to earth's surface.
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The steeper the gradient, the higher the velocity of flow.
jet streams
Jet Streams.
When their velocity decreases
When the discharge of a stream increases, so does it's velocity. When it decreases, so does the velocity.
Jet streams
Jet streams