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What is dredging?
Dredging is the removal of sand or silt that has been deposited on the riverbed, because it is proving a hazard to river navigation to ships. A narrow channel may be kept clear by dredging so that ships may sail into a river or to reach the docks.
What month in 1817 did john oxley explore the lachlan river?
John Oxley explored the Lachlan River in May 1817. It was on 17 May that he discovered the Lachlan River overflowed its banks and he could no longer determine where the main channel was, in order to follow it.
What is stormwater?
* General definition of stormwater: Stormwater is the water produced from precipitation during a storm that can be measured in a downstream river, stream, pipe, etc. shortly after the precipitation has occurred. * Regulatory definition of stormwater: Stormwater is water that passes through an engineered structure (e.g. pipe or gutter). * Hydrologic definition of stormwater: Stormwater is water produced from precipitation during a storm that reaches a stream channel rapidly and causes an increase in water discharge of the stream. The path of transport may be natural or manmade.
Who was the first European to reach Mississippi's River?
Hernando De soto...............................
Why does channel depth decrease upstream?
Upsteam, in the mountains, the water may be flowing over rocks. In the valleys, the depth of earth and softer material is greater, so enabling the river to erode a deeper channel.
Why doesn't precitation fall from every cloud?
Precipitation forms when water droplets in clouds grow large enough to fall due to gravity. Not all clouds have enough moisture or updrafts to support precipitation. Additionally, some clouds may be too high in the atmosphere for precipitation to reach the ground before evaporating.
What are the two factors that control the concentration of salt in seawater?
Well there may be more than two. The rivers flow into the sea, thus diluting the salt, but salt carried by the river will increase the salt content. Salt may be removed by precipitation, but only if the concentration becomes great.
Would the delta of the Mississippi river change over time?
Deltas of any rivers will alter over time. A channel may silt up and become blocked, so forcing the water to form a new channel elsewhere - a continuous process.
How long would it take you to swim from uk to France?
Well, if you want to literally "swim" all the way from London to Paris, you're going to have to swim downstream the Thames river, then cross the English Channel, and then swim upstream the Seine river until you reach Paris... Mmmh that may take a while! But if you want to simply cross the Channel between England and France at its narrowest point, the world record is about 7h54 I think, but the average time is about twice as much or 13h.
Do the levels and the sediment load increase or decrease as the river ages?
As a river gets older sediment load decreases due to the age of the river and erosion
What is a channel in the water?
When we talk about a channel in the water, we mean a pathway in which the depth of the water is sufficient for the passage of whatever shipping or boats normally travel by means of that channel. If a ship does not remain in a channel, it is possible that it will encounter shallow water and run aground, or it may even strike a rock and be damaged (as in the recent memorable case of the Costa Concordia).
What are the advantages and disadvantages of river dredging?
ADVANTAGES -moves flood water to the see quicker/fasterDISADVANTAGES - water can cause problems at the coast.- homes may have to be moved in order for the river channel to be- expensive to and move the natural flow of the riverHOPE THIS HELPS :)
