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Decrease. The source of the river is usually in a mountainous area with a steep gradient.
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∙ 13y ago
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Does a stream's velocity increase or decrease downstream?
increase
What happens to stream gradient as it moves downstream?
it decreses
Stream gradient role on stream velocity?
An increase in gradient will generally increase stream velocity.
How do the gradient and discharge of a stream change from its headwaters to its mouth?
The discharge for a single stream should not change much from the headwater to the mouth. The exceptions to the mouth would be if another stream joined the main stream, which would increase the discharge or if you loose a significant amount of water to infilitration, which would decrease the discharge. The gradient should be high at the headwaters and gradually decrease downstream where it should be low at the mouth. Of course differences in lithologies or secondary streams can change the gradient for a short distance, thought the overall profile should fit the expected model.
How does the gradient of river affect it flow?
The gradient of a stream affects the speed of the water as it moves downstream. The steeper the gradient, the faster the water moves.
How does a stream's gradient affect its velocity?
the difference in velocity is mostly due to the great efficiency of the large downstream channel.
How does the gradient of a river affect its flow?
The gradient of a river is mostly flat or downhill which means that as the water flows it is affected by gravity. The steeper the gradient goes downhill, the more gravity will affect the water which will make the water flow faster (increases the velocity).
Why does a stream discharge increase?
In the upper course of a river, there is a V-shaped valley with a steep gradient as the water is constantly using up the majority of its energy to overcome friction. As a river flows downstream, the valley becomes a U-shape and the gradient decreases. This is because there is less gravitational pull towards the sea/lake level. Also towards the middle and lower courses, there are more tributaries and confluences which will add more discharge to the river basin. This is constantly happening and thus, as it flows downstream it increases. The velocity also increases as there is more discharge.
In a typical stream where the gradient in steep the discharge is?
In a typical stream where the gradient is steep the discharge is small.
In a typical stream where the gradient is steep the discharge .?
In a typical stream where the gradient is steep the discharge is small.
Why might a stream volume increase or decrease?
pressure, temperature, possibly somethign else
What is the correct definition of stream gradient?
A stream gradient is the grade measure by the ratio of drop in elevation of a stream. It is expressed as feet per mile.
