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Studies Show That Typhoons Hitting Asia Are Getting Stronger
Is climate change generating more powerful, more frequent typhoons? (CCSS Level: Grade 8, Words: 314)
Sep 12, 2016 World News
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Thanks to ocean warming, over the past 40 years typhoons hitting Asia have become stronger and also strike more often, say scientists.

One of the authors of the study into typhoons, Wei Mei, said "It is a very, very substantial increase. We believe the results are very important for east Asian countries because of the huge populations in these areas. People should be aware of the increase in typhoon intensity because when they make landfall these can cause much more damage. "

A tropical cyclone, or typhoon as they are called in Asia, gets most of its energy from the evaporation of water off the ocean surface. This water vapor changes back into clouds and rain when the warm wet air rises and cools. As the temperature of the ocean water gets higher, the evaporation cycle increases in strength, making for more powerful typhoons.

Warm water at the surface makes these storms worse, and when they get close to land they pick up even more heat from the warm shallow waters on the coast, making them stronger still.

Using information from Hawaiian and Japanese weather centers, recent warming was matched to storms in the Pacific. The team found that the strength of typhoons in East and Southeast Asia have gone up by nearly 15 percent since the 1970s, and that 15% increase actually works out at a 50% increase in damage caused. The scientists also found that the number of typhoons getting into the highest categories of 4 and 5 has gone up by four. Since 1977 these super-storms have gone from happening just once a year, to four times a year.

But as the world warms more in the future, big storms are likely to get even stronger and more dangerous, especially near to China, Taiwan, Korea and Japan, say the scientists. "Understanding intensity change is very important for disaster preparation, " Mei said.

Why is it important for countries to pay attention to stronger typhoons in the future?
so they can try to change future weather patterns
so that they can better forecast when they will arrive
so that they can be better prepared for typhoons hitting
to keep better records of strong typhoons in the Pacific
What is making the typhoons worse when they get close to the coast?
they get a "kick" from the warm water near to shore
the sun is much stronger near to land, giving more energy
typhoons get most of their energy from air rising over land
there is more fossil fuel being burned on the land
A Typhoon has another name when it happens outside the western Pacific. It is called:
an intense storm
a tropical cyclone
a tornado
a whirlwind
In the article, a powerful category 4 or 5 typhoon is referred to as?
tropical cyclone
super-storm
violent storm
hurricane
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