All right, the consequences can be really terrifying if we do not prepare ourselves before a flood occurs. What can we do? We cant totally stop a flood from occurring. But one thing for sure - we can reduce the impacts of floods when it occurs.
Remember the river chapter?(of course you do) Building artificial levees and dykes along the river banks can help the river to hold more water and thus reducing the chances of flooding. However, there's a limitation to this. Sediments will be deposited on the river bed, making the river shallower. The water level will eventually rise above the levees or dykes and more money have to used to maintain the structures.
Ok...so dykes and levees are not so successful. How about construction of dams? Well, it helps to control the amount of water flowing into rivers and also increases the amount of water a river system can hold upstream. HOWEVER, like the construction of levees and dykes, there are limitations to this solution. What happens is that sediments will be accumulated in the reservoir as the construction of dams slow down the speed of river. The build-up will eventually raise the riverbed and cause unexpected floods. Worse still, what if a dam breakage occurs? Massive amount of water will be released downstream at one time, causing major flooding to occur to the area downstream.
1:39 AM
All bout us
Creators of this blog: Danial and Kelvin
We're Sec3E1 from Bowen Sec School
We decided to do a blog for our geog project.
WHY? We will tell you why.
Ppt seems boring. Games are too difficult. Charts and Scrapbooks uses paper and video is troublesome.
That's why we decided to stick to a simple blog(:
So have a SPLASHING good time reading it!
Our Aim of this Blog
To explain the causes, consequences of floods and how we people react to them.
Also, our other aim is to score A1 for this project(: and hopefully the PURE geographers will be amazed by the effort we put into doing this blog.
Enjoy!
