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in relation to the flow dynamics of the water against standing water(resistance) and the widening if the river in relation to flow (expanding area in relation to pressure) it would be easy to see that the flow can diminish. what factors need to be taken into account is changes in the elevation of the flow ( decreasing elevation would obviously increase the flow and elevated areas would widen the river and create lakes) this can be seen by rapids and pooling in the river. so velocity would be a variable but the gallon per minute flow would be more of a constant
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What else can I help you with?
Does gradient of a stream increase or decrease downstream?
Decrease. The source of the river is usually in a mountainous area with a steep gradient.
Why does average velocity increase downstream?
Average velocity increases downstream because of the overall flow of the river. As the river moves in the downstream direction, the volume of water increases due to tributaries adding water along the way. This increase in water volume results in a higher average velocity as the same amount of water needs to flow through a larger channel.
Why does the velocity of the river increases downstream?
The velocity of the river increases downstream due to the cumulative effect of gravity pulling the water downhill. As the river flows downstream, it collects water from tributaries and gains more volume, leading to an increase in velocity to accommodate the larger volume of water. Additionally, friction between the water and riverbed is reduced downstream, allowing the water to flow more freely and pick up speed.
Does river load size decrease?
The size of the pebble will decrease down stream because the further downstream you go the quicker the river velocity. This means there will be more abrasion against the sides and bed of the river and the friction will be greater, this wears away the river load making it decrease in size. Increase velocity means that bigger material will be picked up by the river and carried as river load. More load in the river and increased size of load will mean more attrition and the river load will keep colliding into each other smoothening and rounding their shape. Brap brap !!
Why does the water depth increase downstream?
Water depth increases downstream due to a combination of factors such as the accumulation of flow from tributaries, reduced friction along the river bed, and the energy gradient of the river. As the river flows downstream, it gains more volume and velocity, resulting in higher water depth.
Why does river velocity increase downstream?
Velocity increases in a downstream direction because more sources of water combine depth and width. A constant flow of water would result in a higher river velocity.
Does the volume of water in a river increase further downstream?
yes
A boat moves at a speed of 15 kmh in still water. The river it is traveling in flows at a rate of 3 kmh downstream. What is the velocity of the boat if it travels downstream What is the velocity of th?
If the boat is moving downstream, you add the speed of the boat with the speed of the river flow. Therefore, the velocity of the boat downstream is 18 km/h. If the boat is moving upstream, you subtract the river flow speed from the boat's speed, so in this case, it would be 12 km/h.
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).
The explaination of the Bradshaw model?
The Bradshaw model is a geographical model made in 1978, by Proffesor Michel Bradshaw, which describes how a river's characteristics vary between the upper course and lower course of a river. It shows that channel width, channel depth and the wetted perimeter increase downstream. The Bradshaw Model shows how certain elements of a river increase in size or amount in their journey downstream, while some decrease such as the load particle size.
Why does the float time of a river increase or decrease?
hi there the reason for this is if you are mesuring the float time near the source of the river then it will take longer because the river needs to build up velocity as the river travels down steam is you take you data near the mouth of the river that float time will be shorter because the river velocity will have increased in speed i hope i helped out.
What change would most likely increase the velocity of a river?
Increasing the gradient or slope of the river bed is most likely to increase the velocity of a river. This change allows water to flow more rapidly downhill, resulting in higher velocity.
