What is the knowledge of typhoons, what does a typhoon mean?

Typhoon belongs to the source of transportationTropical cyclonesone.

A tropical cyclone is a tropical cyclone that occurs in the tropics or subtropics.

The low-pressure vortex over the ocean is a powerful and deep "tropical weather system."

The structure of the typhoon is divided into the typhoon eye area, the cloud wall area, and the spiral rain belt area from the center to the outside. Typhoons with winds of 12 or above are collectively referred to as typhoons.

Hazards of Typhoon Zhengchun:The windy weather brought by typhoons is one of the main hazards of typhoons, especially the strong winds near the center of the typhoon. The next paragraph of text will give us a visual idea of the hazards of high winds:

It is difficult to walk with an umbrella at level 6, it is inconvenient to walk with the wind at level 7, tree branches are broken by wind at level 8, roof tiles are flying at level 9, and trees are uprooted at level 10. Falling objects from high altitudes and collapse of dilapidated buildings are all accidents that are prone to occur on typhoon days.

1. Typhoon (English: typhoon) is a type of tropical cyclone. A tropical cyclone is a low-pressure vortex that occurs over the tropical or subtropical oceans and is a powerful and deep "tropical weather system".

China divides tropical cyclones in the South China Sea and the Northwest Pacific into six categories according to the magnitude of the maximum average wind force (wind speed) near the center of the bottom layer, of which the wind force near the center is 12 or above, collectively referred to as typhoons.

2. Broadly speaking, the term "typhoon" is not a tropical cyclone intensity. Tropical cyclones (including tropical storms, severe tropical storms and typhoons as defined by the World Meteorological Organization) with sustained winds of metres per second or more at their centre are referred to as typhoons. Officially, the term "typhoon" even refers directly to the tropical cyclone itself.

Tropical cyclones in the northwest Pacific reach tropical storm intensity, they are given a name. Names are provided by 14 countries and territories of the World Meteorological Organization's Typhoon Committee.

1. Strong seasonality, mostly occurring in areas along the destruction of the sea and disturbance.

Typhoons tend to occur in March depending on the season. The scope of the disaster is mainly coastal areas and islands, such as Guangdong, Fujian, Hainan, Taiwan and other provinces.

2. Strong destructive power and great harm.

Typhoons have strong destructive power and great harmfulness in the following ways: First, strong winds and waves, the wind speed near the center of the typhoon can reach more than 100 meters per second, and strong winds can destroy large areas of houses and facilities; The second is storm surge, which can cause the coastal water to swell due to its very low central pressure and strong winds, forming a typhoon storm surge. As a result, the waves broke through the seawall and the sea water poured back; The third is heavy rain, and the strongest rainstorm so far has been caused by typhoons.

Heavy rains can cause flooding and dam bursts.

3. The impact is wide and the personnel is large.

There have been three times in the history of the world that typhoons have killed more than 300,000 people. From July to September every year, strong winds and strong winds landed in the coastal provinces and cities of China's mainland, causing property losses of billions of yuan and hundreds of people.

4. It is difficult to prevent and rescue.

Typhoons often cause serious damage to China's most densely populated and economically developed coastal areas, making it difficult to prevent them. Due to the large impact area of the strong typhoon, the disaster situation is complex, the buildings collapse, the personnel are heavy, and the traffic and communication are interrupted, which makes it more difficult for the social forces to coordinate the rescue after the disaster.