Thank you for how the typhoon came about

There are at least two conditions for the formation of a typhoon: 1. relatively high temperature 2. abundant moisture. When boiling water, the water at the bottom of the pot rises because the water at the bottom of the pot expands due to heat.

The same is true of air, when the air at the bottom is heated, it will rise. In the area with high temperature, a large amount of air will rise when there are some disturbances in the atmosphere, so that the air pressure on the ground will decrease, and then the peripheral air in the rising area will continue to flow into the rising area, and the incoming air will rotate like a wheel due to the rotation of the earth, which is one of the reasons for typhoons. When the rising air expands and cools, the water vapor in it cools and condenses into water droplets, which releases heat, which in turn promotes the continuous rise of the low-level air, so that the air pressure on the ground drops more and the air rotates more violently, which forms a typhoon.

Where do you have both? Only on the surface of the tropical oceans. The temperature over the ocean surface there is very high, allowing the lower level air to fully accept water from the ocean surface.

It is also the most abundant place on the planet for water vessels, which are the main driving force for the formation and development of typhoons. Without this driving force, the typhoon will dissipate even if it forms. Secondly, there is a certain distance from the equator, and the deflection force generated by the earth's rotation has a certain effect, which is conducive to the development of typhoons, cyclone test circulation, and the strengthening of airflow convergence.

Clause. Third, it is the tropical ocean surface situation in the middle latitude is simple. Therefore, the air above the same sea area can often maintain constant conditions for a long time, so that the typhoon has sufficient time to accumulate energy and brew into the wind. In conjunction with these conditions, as long as there is a suitable trigger mechanism, such as:

Typhoons can form and intensify in some tropical ocean areas, such as divergent air currents at high altitudes or when the northern and southern hemisphere trade winds meet slightly north of the equator. According to statistics, in tropical oceans, typhoons often occur in areas where the ocean surface temperature exceeds 10 degrees. According to statistics, the oceans that produce typhoons are mainly the seas east of the Philippines, the South China Sea, the West Indies and the east coast of Australia.

These places are hotter and where the trade winds of the northern and southern hemispheres meet, so there are more than 20 typhoons a year.

Typhoons originate in tropical seas, where temperatures are high and large amounts of seawater are evaporated into the air, creating a center of low pressure. 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.

Preparation points for sakira sliding before the typhoon:

1. Listen, watch or check the typhoon warning information on the Internet in time to understand the best anti-typhoon action countermeasures.

2. Close the doors and windows, and fasten the structures that are easy to be blown by the wind.

3. Move from the dilapidated house to a safe place.

4. People in low-lying areas that may be flooded should be evacuated in time.

5. Check whether the circuit, furnace, gas and other facilities are safe.

6. Kindergartens and schools should take temporary measures to stop and suspend classes if necessary.

1. What are the basic conditions for the formation of typhoons?

1. There must be a weak tropical eddy.

Any machine must have energy before it can be operatedTyphoons are no exception, and the energy of typhoons** is the water vapour of the vast oceans, which needs to be absorbed by a tropical eddy.

Because of the high-speed rotation of the eddy current, the surrounding reinforcement will be greater than the positive **As a result, the surrounding water vapor will continue to pour into the middle of the typhoon, making it a simple operating machine.

Around the eye of a typhoon, moist air rises and the temperature above the atmosphere is higher than below, and water vapor condenses and releases heatThe ** of energy is also generated from this, so a necessary condition for the formation of a typhoon is the presence of a hot tropical vortex.

2. Produced in a vast ocean.

Typhoons require huge amounts of energy to produce over the vast oceansSeawater can provide sufficient heat energy and can also provide a large enough area for typhoons.

The requirement of the ocean is that the sea surface temperature must be above degrees, and after 60 m the water temperature is even higher than this. If it does not reach the level, the water vapor emitted will not be able to provide enough heat energy for the typhoon, and the typhoon will naturally be difficult to maintain.

3. There is a large enough deflection force of the earth.

The Earth rotates all the time, and a force is generated that changes the direction of the air flowThis force is one of the key factors in the creation of typhoons, because the formation of typhoons requires water vapor to constantly change direction.

The deflection force of the Earth is almost zero at the equatorial part of the Earth, and the deflection force of the Earth gradually increases between the polesIt is for this reason that typhoons usually occur at least five degrees above the equator, because only then can a sufficiently large deflection force of the earth be provided.

2. What are the causes of typhoons?

According to the relevant meteorological bureau, the growth of these eddies is extremely difficultIn addition, the conditions attached to the formation process are very difficult to achieve, and only ten typhoons can form one typhoon on average.

But this data is already very alarming, because there are too many tropical eddies on the surface of the seaOnce a typhoon occurs, the impact on the surrounding residents is self-evident.

As for the formation principle of typhoons, in fact, so far it is only speculation, there is no relevant scientific material to prove, scientists guess:"In the ocean, due to the heat, water vapor can be generated on the surface of the sea at any time, and this water vapor provides energy for the tropical eddies, and then the surrounding water vapor continues to pour into the center of the typhoon."

Typhoon Definition: A typhoon is a category of tropical cyclones. In meteorology, as defined by the World Meteorological Organization:

A tropical cyclone with sustained winds of force 12 is called a hurricane, or a local synonym for hurricane, which is used in the North Atlantic and the Eastern Pacific. Whereas, the synonym used in the western North Pacific Ocean is typhoon. Typhoon formation: The tropical sea surface is exposed to direct sunlight, which increases the temperature of the sea, and the evaporation of the sea provides sufficient water vapor.

The condensation of water vapour during the uplift releases a large amount of latent heat, which promotes the further development of convective motion, causing the pressure at sea level to drop, causing the surrounding warm and moist air to flow in and replenish, and then uplift. Under the influence of the geostrophic deflection force, the incoming air rotates. When the rising air expands and cools, the water vapor in it cools and condenses to form water droplets, which releases heat and causes the low-level air to rise.

As a result, the near-ocean pressure drops lower, the air rotates more violently, and a typhoon is formed.

It is a kind of wind with a relatively large wind level, and it will be called a typhoon in the end, and the main reason for the formation is because there are some eddies, and it is also the deflection force of the earth and the sea water has a particularly sufficient heat energy, which will lead to the formation of a typhoon at this time, and it will also cause danger to people's lives.

It refers to a kind of cyclone that is more powerful, because the temperature of the ocean is relatively high, and then there is some turmoil in the atmosphere, and then the air will rise, and then the pressure on the ground will be lower, and then a convection will be formed, and finally a typhoon will be formed.

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Analysis: Tropical cyclones are called "typhoons" in China because typhoons often pass through the island of Taiwan and the Taiwan Strait.

A strong atmospheric vortex that occurs over tropical oceans. A tropical cyclone is a warm centre of low pressure with a minimum pressure of 870 hPa, a horizontal range of hundreds to thousands of kilometers, and a lead straight range extending from the ground to the lower stratosphere. Its intensity is based on the maximum average wind speed at the near-center ground.

Internationally, it is stipulated that a maximum wind speed of 12 or more near the center is called a typhoon (called a hurricane in the West Indies and the Atlantic Ocean); Wind force 10 11 is called a severe tropical storm; Wind force 8 9 is called a tropical storm; Wind force 6 7 is called a tropical depression.

The following conditions must be met for the formation of a tropical cyclone: There is a vast ocean surface with a sea temperature greater than 26, so that the air on the ocean surface is in a state of high temperature and humidity. The Coriolis parameter (f 2 sinj, which is the angular velocity of the Earth's rotation and j is the latitude) should be greater than a certain value to ensure that the nascent cyclonic circulation will not weaken.

Tropical cyclones generally form in the sea at latitudes greater than 5°. The lead straight shear of the basic air flow becomes smaller, so that the latent heat of condensation will not be blown away by the strong wind of the high-rise, but can be concentrated in the same liquid lead straight air column, which is conducive to the formation of a warm center. There is a relatively stable convergent flow field at low altitude or a strong stable divergent flow field at high altitude.

The main sources of tropical cyclone formation are the Northwest Pacific Ocean, the Northeast Pacific Ocean, the North Pacific Ocean, the eastern and western parts of the Southern Indian Ocean, the Bay of Bengal, and the Sea. The sources of hot cyclones affecting China are: the sea east of the Philippines and the Ryukyu Islands; the sea near the Mariana Islands and the Marshall Islands; The surface of the South China Sea.

Tropical cyclones generally move along a wide range of ambient flow fields, with most tropical cyclones in the Northwest Pacific initially moving westward or northwesterly in the easterly belt. Later, some of them turned to the northeast near the ridge of the subtropical high in front of the trough of low pressure in the westerly belt and gradually degenerated into extratropical cyclones. Others continue to move westward or northwest, disappearing or denatured into the continent.

Tropical cyclones are accompanied by high winds, heavy rains and high waves, which often cause hazards to maritime transport, fisheries and the livelihoods of coastal people. However, the rains brought by tropical cyclones can sometimes be beneficial in relieving droughts.

"Stepping on a thousand rivers, raising the sand in the sky, startling the birds in the forest and breaking the flowers in the garden. This is often described as a "typhoon". Typhoons are very destructive, and they are generally formed in the ocean, so when you step on thousands of rivers, you will roll up dirt and trees, and destroy facilities such as houses, gardens, and roads, so you can raise sand all over the sky, startle the birds in the forest, and break the flowers in the garden.

A typhoon is actually a severe tropical cyclone that requires at least two conditions to form, namely high temperatures and abundant moisture.

For example, when you boil water, the water at the bottom of the pot will rise because the water at the bottom of the pot expands when heated. The same is true of air, when the air at the bottom is heated, it will rise. At this time, the outer air of the rising area continues to flow into the rising area, and due to the rotation of the earth, the incoming air rotates like a wheel, which is the cause of typhoons.

When the rising air expands and cools, the water vapor in it cools and condenses into water droplets, which releases heat, which in turn promotes the continuous rise of the bottom air, so that the air pressure drop on the ground is lower, and the air rotates more violently, so that a typhoon is formed.

In tropical oceans, the sea surface is exposed to direct sunlight, which will cause the temperature to rise to more than 26, at this time, the formation of water vapor in the air condenses into cumulonimbus clouds, and the air is heated and expands to form a low-pressure center, gradually forming a convection system, and slowly forming a typhoon.

Typhoons are 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". Tropical cyclones in the South China Sea and the Northwest Pacific are classified into six categories according to their maximum average wind strength (wind speed) near the center of the bottom layer, of which those with winds of 12 or more are collectively referred to as typhoons.

The cause of typhoons is that the temperature of the sea water rises due to the direct exposure of the tropical sea surface, and the sea water evaporates into water vapor and rises into the air, while the surrounding colder air flows in and replenishes, and then rises. Due to the vastness of the sea, the circulation of air currents is constantly increasing in diameter, even several kilometers. Because the earth rotates at a high speed from west to east, the friction between the airflow column and the earth's surface occurs, because the closer to the equator, the stronger the friction force, which guides the airflow column to rotate counterclockwise, (the southern hemisphere system rotates clockwise) because the speed of the earth's rotation is fast and the airflow column cannot keep up with the speed of the earth's rotation and forms a sensory westward movement, which forms what we now call typhoons and typhoon paths.

The center of the typhoon is at the point where we currently see the wind direction in a T-shape, and it is not difficult to determine the distance and direction of the wind center according to the wind direction and wind speed. Based on my 40 years of observations, the direction of the clouds before the typhoon approaches, and whether the typhoon passes through the area, is basically accurate. There are many times when the accuracy is preceded by local forecasts.

When the maximum wind speed near the surface reaches or exceeds meters per second, we call it a typhoon.