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How to form and name Typhoon on the coast of Guangdong Province

According to the blue typhoon warning issued by the central meteorological station, typhoon "Shanzhu" (super typhoon level) No. 22 will land in Guangdong on the evening of 16th, and the typhoon weather will test South China. Do you know how typhoon came into being and named? Let's get to know with Xiaobian.

The birth of Typhoon

Typhoons are actually low-pressure vortices on the tropical or subtropical ocean, often accompanied by strong winds, rainstorms and storm surges, which will affect human life.

In autumn, there will be super typhoons, mainly because when summer and autumn alternate, the direct sunlight point moves from north to south, which causes the sea water temperature to rise, the heat accumulated by the sea water is greater, and the energy provided to the typhoon is greater, so it is easier to have high-intensity typhoons.

As the cold air is more active in autumn, if Typhoon encounters cold air at this time, it will trigger stronger precipitation and cause greater disaster.

After the typhoon "landed", without the ocean as the energy source, coupled with the friction of terrain, buildings, etc., it will soon weaken into a tropical depression. After entering the temperate zone, in case of the invasion of weak cold air, the typhoon will change its nature and become an extratropical cyclone.

From the generation to the weakening of typhoons into extratropical cyclones, it is like a person moving from infancy to old age. This is the "growth" of typhoons.

How to name typhoon?

The name of typhoon, sometimes small and fresh, sometimes very silly and cute, but why to name it? On the one hand, it is easy for human beings to pay attention to, on the other hand, it is helpful to distinguish different typhoons in the same area, and it is convenient to transmit early warning information to typhoon residents.

In 2000, the World Meteorological Organization decided that 14 countries and regions in the Asia Pacific region should provide typhoon names in advance to form a typhoon naming table. There are 140 names in the naming table. Each country or region provides 10 names, which are recycled year after year in order to solve the problem of typhoon name inconsistency. However, if a typhoon causes a particularly serious disaster, or there are special wonderful deeds, the relevant countries have the right to propose to remove their names at the typhoon conference. Generally, as long as it is proposed, the delisting will pass.

Pay attention to typhoon warning signal

Typhoon days should always pay attention to the information released by the meteorological station, pay close attention to the latest developments of the typhoon, and do a good job of defense in advance.

How to deal with typhoon?

Typhoon landing will bring bad weather such as heavy rainfall, so how should we deal with it?

First of all, emergency supplies such as lighters, emergency lights, food, drinking water and so on should be prepared at home to deal with the situation of water and power outage caused by typhoon. The potted plants and other articles shall be transferred to the room in time to avoid hurting others.

When going out in case of typhoon, walk away from dangerous buildings, be careful of ponding channels, try to avoid the riverside seawalls, high-voltage power poles, etc.

When driving in a typhoon, it is necessary to turn on the lights in the rain, control the speed and change the lane carefully to prevent rear end collision. If the water overflows into the car, you should leave first and then ask for help. For parking, open parking lot or underground garage with smooth drainage shall be selected to reduce the possibility of foreign objects hitting. Don't park your car next to outdoor billboards, trees and some temporary buildings; don't park your car downstairs; don't park in low-lying areas; don't park your car near power lines.