China Flooding
Million flee south Chinese floods
Flooding in southern China kills at least 55 people and forces more than a million to flee their homes, the government says.
Ref. https://news.bbc.co.uk/1/hi/world/a...fic/7455239.stm
New tool could help predict, prevent surging waters in flood plains. A group of international scientists studying China's Yellow River has created a new tool that could help officials better predict and prevent its all-too-frequent floods, which threaten as many as 80 million. Ref. Source 6q.
I am not sure I am following this as a way to predict or less flooding potential. Granted the more sediment a river carries down to its mouth is good for some things but how this can be used to control or predict flooding is lost on me. This study I think is more for the rivers and how they carry sediment more than flood control.
KN,
It sounds like this river collects and transports so much sediment that the sediment is actually what makes it flood along with rain. I guess it jams the river up and these jams actually change its course. I'm not sure this happens to this extant anywhere else in the world. But I'm guessing when it happens there it must be catastrophic. I mean, the whole river jumping it's bank and establishing a new course. Wow.
Any river in the world is capable of this. I know the Missouri river, the Mississippi river and even some others have jumped their banks and created mew main channels. This has happened many times in the past. The Mississippi with all its flood controls is more swift and more prone to major flooding due to all the levees that have been built to keep it in it s main channel. I think that is causing more flooding that the sediment in the river. Plus the Yellow river has a major flood control with the three river damn. IT releases water to control the amount of sediment that is building up thus should reduce flooding but some how it is not. Sounds to me that this research was more about transporting sediment than flood control. Man has yet to learn when you try to make a river go a certain way it will not always keep going that way.
KN,
It sounds to me from the way the story is written that it happens more often with this river. You are right though, the Mississippi has changed course multiple times. The last time there was a major shift was due to a massive earthquake I think. And yes, nature is still more powerful than we are, even though we hate to admit it and try to bend her to our will.