http://www.pbs.org/wgbh/nova/sciencenow/3204/02.html
What is the hurricane? What will we do when there is hurricane coming to us?
Nowaday, there are more hurricane attacking us and we can not foreknow. Therefore, scientists are researching to be able to predict hurricane that will come and warn everybody to flee to another place. How can they do it ?
A group of scientists examines level of wind, water in the river and other natural conditions. They usually observe them and try to predict what happens next. From there, they built up statistics base on what they could collect. They also use satellite system to locate the hurricane and draw its external structures. They use machines to support them in identifying how strong the hurricane is and even when and where it will happen. The only way that government can do is to build up levees to hold back the water in the river or sea. They use many pumper to pump the water out of the levee. It can pump out billions gallon water every day. Its so hard for scientists to predict s storm because it usually changes and they can know how strong it will hit the land. They can not notify that there is a storm coming and then nothing happens. Therefore, it is still a big challenge to scientists to find out the answer. They said there has been more hurricanes happen in America and it causes traumatic casualties and sometime not only one but even two or many storms happen at the same time. So, we need have positive methods to prevent influences of it. Finally, we can not still know exactly when a storm will come and if it came, what would you do???
What is the hurricane? What will we do when there is hurricane coming to us?
Nowaday, there are more hurricane attacking us and we can not foreknow. Therefore, scientists are researching to be able to predict hurricane that will come and warn everybody to flee to another place. How can they do it ?
A group of scientists examines level of wind, water in the river and other natural conditions. They usually observe them and try to predict what happens next. From there, they built up statistics base on what they could collect. They also use satellite system to locate the hurricane and draw its external structures. They use machines to support them in identifying how strong the hurricane is and even when and where it will happen. The only way that government can do is to build up levees to hold back the water in the river or sea. They use many pumper to pump the water out of the levee. It can pump out billions gallon water every day. Its so hard for scientists to predict s storm because it usually changes and they can know how strong it will hit the land. They can not notify that there is a storm coming and then nothing happens. Therefore, it is still a big challenge to scientists to find out the answer. They said there has been more hurricanes happen in America and it causes traumatic casualties and sometime not only one but even two or many storms happen at the same time. So, we need have positive methods to prevent influences of it. Finally, we can not still know exactly when a storm will come and if it came, what would you do???
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