A brief overview of typhoon formation.

Typhoon is a large tropical cyclone formed by the interaction of water vapor formed by seawater evaporation and Coriolis force generated by the earth's rotation.

Knowledge expansion:

1, formation process:

The formation process of typhoon involves many factors such as ocean, atmosphere, earth rotation and so on. First of all, the water vapor on the ocean surface rises due to the evaporation of sunlight and heat, forming a meteorological front. Then a lot of water vapor condenses into water droplets, releasing a lot of latent heat, heating the surrounding air and rising.

The rotation of the earth causes Coriolis force, which makes the rising air rotate. Under suitable conditions, this updraft will gradually develop into a low-pressure system and then evolve into a typhoon.

2. Influencing factors:

The key factors of typhoon formation include sea surface temperature, sea surface temperature distribution, atmospheric stability and earth rotation effect. The surface temperature of the tropical ocean should reach above 26.5 degrees Celsius, and the seawater can be fully evaporated to provide sufficient water vapor. The updraft should be relatively stable to maintain the sustainable development of the typhoon.

3. Development stage:

The development process of typhoon usually includes incubation period, development period, maturity period and extinction period. In the incubation period, the ocean surface is warm, the seawater is full of water vapor, and cyclones begin to form.

The development period is the stage of rapid development of typhoon, with the central air pressure decreasing and the wind force increasing. The mature period is the strongest time of typhoon, with the lowest central air pressure and the highest wind speed. The near-death period is the process of typhoon disappearing gradually, with the central air pressure rising and the wind weakening.

4, the impact and prevention:

Typhoon is a devastating natural disaster, which will bring severe weather such as strong wind, rainstorm and storm surge, and lead to serious consequences such as floods, landslides and coastal erosion. In order to reduce the disasters caused by typhoons, countries will take various preventive measures, including typhoon monitoring, early warning, personnel evacuation, building reinforcement and so on.

To sum up, the typhoon is a powerful tropical cyclone formed by the interaction of water vapor evaporated from the ocean and atmospheric circulation. Its formation needs a series of specific meteorological conditions, and the development process of typhoon has also gone through different stages, which has a great impact on human society and requires corresponding preventive measures.