What is the development process of typhoons and the formation of typhoons?

The specific process of typhoon formation is as follows: 1. The ocean surface temperature over the ocean in the tropical or subtropical heat and combustion zone exceeds 26 degrees Celsius; 2. Due to the high temperature of the near ocean, a large amount of air expands and rises, which reduces the pressure of the near ocean surface, and the peripheral air continuously replenishes the Qiaosui into the rising area; 3. Affected by the geostrophic deflection force, the incoming air rotates, and the rising air expands and cools; 4. When the water vapor cools and condenses to form water droplets, the heat should be released, and the low-level air will continue to rise; 5. The pressure over the ocean surface drops lower, the air rotates more violently, and finally a typhoon is formed.

Typhoons are a type of tropical cyclones, which are low-pressure eddies that occur over the tropical or subtropical oceans, and are a powerful and deep "tropical weather system". Tropical cyclones in the South China Sea and the Northwest Pacific are classified into six categories according to their maximum average wind strength near the center of the bottom layer, of which those with winds of 12 or more are collectively referred to as typhoons.

The specific process of typhoon formation is as follows:

1. The ocean surface temperature over the tropical or subtropical ocean exceeds 26 degrees Celsius;

2. Due to the high temperature of the near ocean, a large amount of air expands and rises, which reduces the pressure of the near ocean surface, and the peripheral air continuously replenishes and flows into the rising area;

3. Affected by the geostrophic deflection force, the incoming air rotates, and the rising air expands and cools;

4. When the water vapor cools and condenses to form water droplets, the heat should be released, and the low-level air will continue to rise;

5. The air pressure near the ocean surface of Xiaotan was lowered, the air rotated more violently, and finally a typhoon was formed.

One of the conditions for the formation of a typhoon is that there is a large amount of water vapor, and where there is a large amount of water vapor, then it is at sea, because there is a wide enough tropical ocean, and this ocean surface not only requires the surface temperature of the sea water to be higher, but also in a layer of sea water at a depth of 60 meters, the water temperature must exceed this value.

Before the typhoon cluster formed, there must be a weak tropical vortex in advance, and we know that the operation of any machine must consume energy, which requires energy**. Stove Zheng Liang.

In the tropical ocean, the sea surface is exposed to the direct sunlight and the temperature of the sea water rises, and the sea water is easy to evaporate into water vapor and disperse in the air, and the rising air flow has water vapor in it, and it will liquefy, so once the water vapor is about to liquefy, it will become a cloud, and it may rain. So there will be clouds and rain here, but this is just the formation of ordinary convective rain.

The air in the center has risen, so a low pressure center has been formed in the middle, and then the air pressure outside is still relatively high, and the air pressure gas from the outside will be supplemented to the center, which will also form a wind, so there will be a high pressure supplement, and the wind will be formed after the replenishment.

This is a simple principle of typhoon, that is, the sea water is evaporated by sunlight, and after evaporation, the hot air rises to the top and becomes a cloud to replenish the surrounding air, which is the simple principle of typhoon.

When boiling water, the water at the bottom of the pot will rise, which is due to the expansion of the water at the bottom of the pot, and the same is true for the air, when the air at the bottom is heated, it will rise.

Causes of the formation of typhoons:

Typhoons originate in tropical seas, where temperatures are high and large amounts of seawater evaporate into the air dust roll, creating a depression.

Centre. As the air pressure changes and the earth itself moves, the incoming air also rotates, forming a whirlpool of air that rotates counterclockwise, which is called a tropical cyclone.

As long as the temperature does not drop, this tropical cyclone will become more and more powerful, and eventually a typhoon will form.

Extended Information: Broadly speaking, the term "typhoon" is not a tropical cyclone intensity. In Taiwan, Japan, etc., tropical cyclones (including the World Meteorological Organization) with sustained winds of meters per second or more at the center (including the World Meteorological Organization.

Tropical storm in definition.

Severe tropical storms and typhoons) are both called typhoons. Officially, the term "typhoon" even refers directly to the tropical cyclone itself.

International conventions are divided according to the strongest winds near their centers:

Tropical low-pressure chainlimbs.

tropicaldepression), maximum wind speed 6-7, ( m s);

Tropical storm (tropicalstorm), maximum wind speed 8 9, (;

Severe tropical storm, maximum wind speed 10 11, (;

Typhoon (ty-phoon), maximum wind speed 12 13, (;

Severe typhoon with a maximum wind speed of 14 and 15 (;

Super typhoon. super typhoon), with a maximum wind speed of 16 ( .

Typhoons are all from a tropical depression that was originally stationed.

Formed by the development of perturbations. According to China's statistics, tropical cyclones in the western Pacific-South China Sea.

** Disturbances in the four initial disturbance intertropical convergence zones, accounting for 80% to 85%; Dongfeng waves, accounting for about 10%; Mid-high latitudes.

Cut-off low pressure, or high-altitude cold vortex in the long wave trough, accounts for about 5%; Baroclinic perturbations, accounting for less than 5%.

Tropical oceans. The higher the SST, the higher the temperature and humidity of the lower atmosphere, and the more obvious the geopotential instability.

Typhoons form in the warm ocean of SST 26 27, and generally speaking, this condition is met all year round on the tropical ocean surface of the world, except for the equatorial southeast Pacific Ocean year-round SST, which is the main reason for the absence of typhoons here.

Typhoon structure:

A typhoon is a deep depression.

system, its central pressure is very low, the lower layers have a significant convergence towards the center, and the top air flow mainly diverges outward. If you cut the typhoon horizontally, you can see that there are three distinct areas, from the center to the outward: the eye of the typhoon.

area, cloud wall area, spiral rain belt area.

Typhoon Eye Zone: Very peculiar, where the wind is very small, the weather is clear, and the average diameter is 40 kilometers, and the seafarers who are present in it humorously call the typhoon eye a "paradise" for typhoons.

Cloud wall area: The cloud wall area around the eye of the typhoon is dozens of kilometers wide and more than ten kilometers high, also known as the eyewall. Here the cloud walls are towering, the wind is howling, the rain is pouring down, the sea is churning, and the weather is at its worst.

The formation process of typhoon is a special meteorological phenomenon that requires a combination of factors to occur. In general, the prerequisites for the formation of typhoons are high sea temperature, high humidity, high evaporation, low breeze or wind speed, and stable air. In such an atmospheric environment, the phenomenon of cyclone formation is more likely to occur, which is formed by the vaporization of seawater and the rising condensation of high-temperature and humid air in the low-pressure area and high-pressure area caused by certain factors.

The formation process of typhoons can be roughly divided into four stages: the gestation stage, the development stage, the maturity stage and the extinction stage.

During the gestation phase, the sea surface temperature rises, resulting in faster evaporation of surface water. The evaporated moisture rises to form water vapor and warm, moist air, and as the air rises, it also absorbs the air flow from the surrounding environment, forming a low pressure zone. This area of low pressure is getting stronger and stronger, creating a good cyclonic environment.

In the development stage, the surrounding airflow continues to converge towards the low pressure area, and the rising and sinking water vapor of the sea surface disturbs the surrounding atmospheric environment, resulting in an increasing rotation speed of the low pressure and a gradual increase in ocean waves.

In the mature stage, a tight annular area has been formed on the low pressure belt, and due to the rotation and the domination of the Shanghai high pressure, the beginning rotates in a counterclockwise direction, which is called a typhoon. The central area of the typhoon is very clear, and the surrounding area is a cyclonic formation zone and an area of heavy rainfall. At the same time, the typhoon's winds began to strengthen, and the wind speed gradually increased.

In the extinction phase, the typhoon is affected by the topography and disturbances and gradually moves towards land. At the same time, the movement of the pressure zone ahead also contributed to the demise of the typhoon, and its wind gradually weakened and eventually dissipated. The formation process of typhoon is a complex physical phenomenon, which requires the joint action of multiple factors to achieve the Tongbu situation, and is also closely related to the atmospheric environment and marine environment.