Why does river depth increase?

Question

I am doing a geography project on rivers and I have to write about why the depth/width increases. Ok so I know it's to do with all the different types of erosion but can anyone put that into good words explaining it better?

Answer 1

With "River morphology" we refer to the field of science dealing with changes of river planform and cross-section shape due to sedimentation and erosion processes. In this field the dynamics of flow and sediment transport are principal elements.

Practically all rivers are subject to morphological processes.

Answer 2

If the river depth increases then the channel must decrease in width or the water velocity increase to keep the same level. If there is no increase in water velocity then the water level will drop. There are 3 parameters that control channel charactoristics and they are Width, Depth and water Velocity. One can't change without affecting the other.

Answer 3

yes the river bed follows an indirect level by up/down but the water level remains the same with a slight fall to the estuary thereby giving you various water depths and needless to say if you get a very wet season then of course the river as a whole will rise giving a greater depth, its never constant

Answer 4

depth is caued by the sediment carried by the river , it is directly related to the water`s veolocity , when water have high velocity , it can carry large amount or size sediments .
the width of the river is related to the time , so finally , all the river will become meander river .

Answer 5

I would say it's the current moving the bottom of the river around.

Answer 6

Currents, (not as one answerer put currants), can scour the bottom of a river increasing it's depth.

(Someone died in a vat of muesli, dragged down by a powerful currant).

Answer 7

b/c with time and ageing and all the water and rocks, gravel, sticks, wildlife, and other misc stuff in that river erodes the bottom and surrounding surface of the river and it gradually expands it slowly as time goes on. hope this helps

Answer 8

Water tries to run a straight path as much as possible so they wore out land by eroding it away turning the soil into sand or compressed rocks.

Answer 9

Water currants erodes the soil, river takes the soil along with it.

Answer 10

i know that some years it snows more and when it melts it fills the river more than the year before, but I don't really think that you are going to get your answer here.