When a stream's discharge increases, erosive energy increases.
The velocity increases too.
When the discharge of a stream increases, so does it's velocity. When it decreases, so does the velocity.
When stream discharge increases, more water is flowing through a corridor. To accommodate that, the water will rise in the channel. Depending on the geometry of the channel, the width of wetted water surface may increase as the water fills a different geometry. If the width of the cross-sectional geometry is constant, however, only depth will increase, along with velocity.
Melting snow increases runoff in spring
the competence and capacity of a steam depend on a streams velocity and discharge. Because the velocity and discharge of a given stream are not constant , the competence and capacity of a stream are not constant . competence and capacity vary along a stream and change throughout the year.
Melting snow increases runoff in spring.
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.
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Stream discharge physically depends on two factors: stream cross-sectional area and velocity. Area is composed of width and depth. Q (flow) = vel x width x depth. Stream elevation change, or how steep a stream is, will affect the velocity. Higher sloping streams (like those with few meanders) will travel faster than sinuous, snaking streams that have a lower elevation drop per length of stream.
a streams discharge is the excess water from a storm or melted snow.
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All the time.
The steeper the gradient, the higher the velocity of flow.