What is the principle of thunder and rain, thunder occurs on rainy days, and how is thunder generate

The principle of thunder:

1. The principle of thunder is that when it rains, some clouds in the sky have positive poles and some negative poles. When two clouds collide, lightning is emitted, and at the same time, a lot of heat is released, which heats and expands the surrounding air. The air that is heated and expanded in an instant will push the surrounding air, causing a strong **-type vibration, which is thunder.

2. Thunder and lightning are the discharge phenomena in thunderstorm clouds. The formation of thunderstorm clouds generally requires two conditions, sufficient water vapor and violent convective movements. In winter, due to the cold and dry air and weak solar radiation, convection is not easy to form in the air, so thunder and lightning are rare.

However, sometimes thunderclouds are formed in winter when the temperature is high, and thunder and lightning are generated, and rain and snow occur. Convection is particularly strong and can also form hail, which can produce the so-called "winter thunder". Knowing these reasons, it is not surprising that "winter thunder" strikes.

Thunder and lightning are the phenomenon of electrical discharge in thunderstorm clouds. There are certain conditions for the formation of thunderstorm clouds, that is, there must be sufficient water vapor in the air, there must be a power to make the moist air rise, and the air must be able to produce violent convective movements. In spring and summer, due to the influence of the warm and humid airflow from the south, the air is humid, and at the same time, the solar radiation is strong, the air near the ground is constantly heated and rises, and the cold air in the upper layer sinks, which is easy to form strong convection, so there are many thunderstorms and even hail.

In winter, due to the control of the continental cold air mass, the air is cold and dry, and the solar radiation is weak, the air is not easy to form violent convection, so thundershowers rarely occur. However, sometimes the weather is warm in winter, and the warm and humid air is stronger, and when the strong cold air in the north occasionally goes south, the warm and humid air is forced to rise, and the convection intensifies, thundershowers will be formed, and the so-called "thunder winter" phenomenon appears. Meteorologists also say that the generation of thunderstorms does not depend on the temperature itself, but on the distribution of the temperature up and down.

In other words, although the temperature is not high in winter, if the temperature difference between the upper and lower reaches a certain value, strong convection can also be formed, resulting in thunderstorms. Winter thunderstorms are rare in China, but they are common in winter in Toronto, Canada.

When the air is extremely unstable, it is easy to have a strong upward convective movement, and form a towering cumulonimbus cloud, the cloud is full of water vapor rushing up and down, it will produce static electricity, the upper end of the cloud will produce a positive charge, the lower end of the cloud will produce a negative charge, and the ground is a positive charge, then, there is air as an insulator between the positive and negative charges, if the voltage difference between the positive and negative charges is large enough to break through the air of the insulator, so that the air expands in an instant**, heats up and glows, and the light is lightning, expanding** Making a loud noise is thunder.

Why does it rain and thunder rain when it rains.

Thunder occurs on rainy days, how is thunder generated?

In rainy days, it is often accompanied by thunder, and thunder is actually a discharge phenomenon, which is caused by violent friction in the process of movement of the atmosphere. At the same time, when thunder is hit, it will be accompanied by lightning and thunder, and the clouds that often occur lightning are mainly called thunderstorm clouds, and other lightning related to stratocumulus clouds, cumulus clouds and cumulonimbus clouds.

The main reason for the occurrence of lightning and thunder is that the moist air rises during rain, and the water droplets on the ground are broken under the strong convection of the air, resulting in a large number of electric charges in the clouds, and because the distribution of such charges is very complex, the clouds have positive and negative charges.

And they are distributed in different regions at the same time, and in the case of such a polar distribution, a potential difference is formed. When this potential difference reaches a certain level, an electric discharge is generated, resulting in the lightning that we are all familiar with, and it is usually accompanied by natural phenomena such as strong gusts of wind and heavy rain.

And in this kind of case, because the cloud with charge and the ground protrusions in contact, will produce a fierce discharge phenomenon, so there will often be a very obvious roar in the place of discharge, which is the thunder that we usually hear, which is called "thunder" a natural phenomenon, but also in accordance with this principle, there are lightning rods on many high-rise buildings, which can make the objects at high places not easily damaged by lightning strikes.

Knowing the above reasons, we can also analyze and know the reasons why there is generally no thunder in winter, mainly because it does not have the conditions for thunder, first of all, there is rarely a rising air flow in winter, so the charge cannot be generated in the clouds, and the current with the charge difference cannot be formed. Secondly, the air humidity in winter is not high, and a series of conditions for the generation of thunder cannot be reached in the absence of moisture, which is also the reason why thunder is more likely to occur in hot weather than in cold weather.

Lightning is a natural discharge phenomenon. In summer, there are many clouds in the high sky that are constantly moving, and the clouds are staggered and rubbing against each other, thus generating a large number of electric charges and forming an electric field. Since the same charge repels each other, the positive and negative charges are concentrated at each end of the cloud.

When the electricity carried by the cumulus cloud reaches a certain level, it will pass through the air and discharge, neutralizing the two charges and generating sparks. This is the phenomenon of lightning. Because of the uneven resistance of the air, the shape of the electric advance is mostly zigzag, forming a band of light like a tree branch, which is called lightning.

And the discharge causes the air to vibrate and make a sound, which is thunder.

The main reason is that there are a lot of electrons in the air, and then when it rains, there will be collisions, so thunder will appear.

Thunder is caused by the collision of water molecules in the dark clouds in the sky, which forms thunder and lightning.