how does the tidal channel form?

Question

how does the tidal channel form?
tidal falt is a gentle flat, how come the channel find its way to flow?

u mean only the spring tide could makes channel?

Answer 1

They are quite complicated as tidal channels are usually the result of a large river mouth.

Over centuries, glaciers would have once carved rivers and drainage plains over what are now temperate landscapes. Hauling great masses of rock off of mountains and gradually eroding them through various processes until they became the silt and clay particles that are experienced with so many tidal channels now days. As the river flows out to sea, it loses the ability to entrain these particles in its water and deposits them in the esturary.

The tide as it ebbs and flows has more momentum and so has the potential to lift and deposit the material further up the esturary every time the tide rises and falls. The counter-effect is that the river will soon remove the particles that the tide deposits in its channel. That is why they are often large areas of flat seafloor and landscape. Because they are constantly working against each other, but with only small forces being present from each. which is why the even deposition requires so much dredging in some of the worlds largest ports.

Adding waves in to the equation results in faster currents and higher pressure changes and results in deeper gorged tidal channels as the energy is concentrated in the esturary. As a result, over years and years, the material is scoured out from the centre of the tidal channel and gradually deposited on the mudflats. The countereffect again being the river continuously depositing its erosive remains on those tidal flats.

Hope that helps

Answer 2

When there is a particularly high tide, often accompanied by a storm the rush of water looks for the easiest pathway and cuts through. It may change from time to time but it is always seeking the easiest way to move. A storm at a spring tide often is the cutter of the new channel.

Answer 3

a good heavy rain fall will create little channels,when the tide comes in it and out it will start wearing the little channels makeing them wider and deeper.