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Does river load size decrease

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Anonymous

10y ago
Updated: 9/11/2022

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 !!

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Baby DuBuque

Lvl 13
2y ago

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Why why does bed load change as it goes downstream?

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 !!


What is a river's load?

material that a river carries along E.g (stone, grass & rocks)


What affects the amount of sediments a river can carry?

The amount of sediments a river can carry is influenced by factors such as the river's velocity, volume of water, slope of the river bed, sediment particle size, and the presence of vegetation or structures that can trap sediments. Increased velocity and water volume typically result in higher sediment transport capacity.


What affects friction in a river?

the gradient of the slope The channel roughness The amount and size of bed load


Why does bed load decrease in size?

The bedload becomes smaller when the river is flowing downstream, and the rocks also become smaller, smoother and rounder due to attrition and abrasion. (The reason the flow slows down is because the energy of the flow decreases.)


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.


Does the rivers velocity affect the rivers bed load shape and size?

Faster river velocities are capable of carrying greater amounts of bedload and transporting them farther and faster. The shape of the sediments of the bedload would therefore be exposed to more physical weathering which would progressively round the sediments and also decrease their size.


What would happen at the mouth of a river with a river's suspended load and bed load?

A river's suspended load and bed load may accumulate at the river's mouth and form a delta. It is a land form created by the deposition of sediments.


Why does load particles decrease downstream?

Fine silt and mud are carried further downstream than heavier rocks and gravel. Which often results in muddy banks at the river mouth.