What s going on with fog all around and no fog in between

It may be caused by the microenvironment, or it is the circulation of the atmosphere.

The problem you mentioned is actually the problem of visibility, and I think that the lack of fog is because we are within the visibility level, not that there is no fog.

Because there were people walking in the village, and there were cars driving, and the fog was dispersed.

There's going to be a tornado, and you're the central point there.

Fog? I guess it's about the broken ozone layer.

Summary. That's because at night, when the temperature drops to a certain value, when the warm and moist air flows over the cold ground or water, there is no fog on the ground, and there will be wet <>

Fog is the liquefaction of water vapor, there is a lot of water vapor in the sky, and when it is cold, the liquefaction produces sails that are round, and the fog is visible to the naked eye, but the water vapor is invisible. There are many buildings on land, and the cold air is generally blocked slowly, and there is not as much water vapor on land as there is in the sky. In the morning, the temperature is low and the mist is large, but when the sun comes out and the temperature rises, the mist is evaporated again, so you can't see it.

That's the reason, my classmates <>

This way. Still not there.

That's because when the temperature drops to a certain value at night, the warm and moist air flows over the cold ground or water surface and gradually cools down to form a high fog. <>

Oh ok thanks.

So why isn't there on the ground?

That's because when the temperature drops to a certain value at night, when the warm and wet Dou Meng's air flows through the cold ground or water surface of Kongxiao, there is no fog on the ground, and there will be wet and wet <>

This is related to the temperature difference and humidity in the room.

The air conditioner outlet sprays white fog, which is the same principle as the white fog exhaled by people in winter.

The first is that the air contains a lot of water vapor, that is, the humidity is high. When air containing a large amount of water vapor is exhaled from the lungs, it immediately condenses into a "white mist" of larger particles (if it encounters objects, it will accumulate into frost). This is the same principle as the white fog formed by the air conditioner, except that the air conditioner sucks the humid air directly into the low temperature zone, and the air is immediately cooled and atomized, and then blown out by the fan.

If the humidity in the air is very low, such as in a dehumidified cold store, the cold air outlet will not spray "white mist" because there is no water vapor that will condense into fog.

The second reason is the temperature difference, where the air containing water vapor suddenly encounters low temperatures. For example, in the summer, the air humidity is also very high, but you will not see people exhale white air, because the humidity does not encounter low temperatures. Similarly, if you turn up the preset temperature of the air conditioner (close to the ambient temperature), the white fog will disappear.

Hello, when the indoor temperature and humidity are high, the air conditioner refrigeration will blow out the fog. This is caused by the cooling of the water vapor in the air. When the indoor temperature and humidity decrease, the fog disappears. This is normal.

Whether it is an indoor air conditioner or a car air conditioner, do not blow directly in the cold air when using the air conditioner for cooling. Especially after sweating, many people like to blow directly in front of the cold wind, which feels very comfortable, but because of the large temperature difference, it is easy to catch a cold.

When the cold air encounters the humidity of the air, it will become fog, the cold air is not cold enough or the air humidity is not large enough will not produce fog, the air conditioner can not get out of the fog is normal, the main thing is to lower the temperature.

hills, plains, basins, mountain bottoms.

1. Fog:

When the relative humidity reaches 100%, the water vapor in the air will condense into fine water droplets suspended in the air, reducing visibility at ground level, a weather phenomenon called fog.

2. Definition: Fog is a weather phenomenon composed of tiny water droplets or ice crystals suspended in the air near the surface, and is the product of water vapor condensation (or condensation) in the air near the surface. It is in liquid form.

3. Formation conditions:

The conditions for the formation of fog are cooling, humidification, and condensation nuclei to increase the water vapor content.

Fog is formed by radiative cooling, mostly in the night and early morning when it is clear, breezy, and the water vapor near the ground is relatively abundant and stable, or there is a temperature inversion, which is called radiation fog in meteorology.

The other is the horizontal movement of warm and moist air, passing through the cold ground or water surface, and the water vapor in the air is gradually liquefied by the cold and forms a fog, which is called advection fog in meteorology.

Sometimes fog formed by both causes is called mixed fog. It can be seen that these conditions can be met in late autumn and early winter, especially in the morning of late autumn and early winter.

Smog in cities is caused by another cause, and that is human activity. Morning and evening are the peak period of heating boilers, and a large number of pollutants such as smoke and dust suspended solids and automobile exhaust are not easy to diffuse under the conditions of low air pressure and low wind, and combine with the water vapor in the low-level air, which is relatively easy to form smoke (fog), and this smoke (fog) often lasts for a long time.

Whenever the visibility in the atmosphere is less than 1 km due to the condensation of suspended water vapor, meteorology calls this weather phenomenon fog.

In general, there is a lot of fog in autumn and winter mornings, why? We know that saturation is reached when the water vapor contained in the air reaches its maximum capacity.

And the higher the temperature, the more water vapor can be contained in the air. 1 cubic meter of air, when the air temperature is 4, the maximum amount of water vapor that can be contained is grams; When the air temperature is 20, the maximum amount of water vapor that can be contained in 1 cubic meter of air is grams.

If the air contains more water vapor than the amount of saturated water vapor at a certain temperature, the excess water vapor will condense, and when enough water is enough to combine with the tiny dust particles in the air, and the water molecules themselves will stick to each other, becoming small water droplets or ice crystals.

The amount of water vapor in the air exceeds the saturation amount and condenses into water droplets, which is mainly caused by the drop in air temperature.

If the ground heat is lost, the temperature drops, and the air is quite humid, then when it cools to a certain extent, a part of the water vapor in the air will condense and become many small water droplets, suspended in the air layer near the ground, which is fog.

Both it and clouds are caused by a drop in temperature, and fog can actually also be said to be clouds close to the ground.

The hot and cold air meet, but the condensed water droplets are small and cannot continue to condense into water droplets, so it is fog.

Fog, to put it bluntly, is water vapor suspended in the air.

There is a lot of water in the air, but condensation into fog requires a condensation nucleus, and the very fine floating dust in the air is the condensation nucleus, which will naturally condense a lot of water vapor, so it will cause fog, so there will be a dull feeling in the fog.

There is a lot of humidity in the air, and fog is produced when it encounters cold air.

Because of the temperature difference between day and night and the high moisture content in the air.

During the day, the temperature is relatively high, a large amount of water is evaporated, and the water content in the air increases significantly. When the temperature is low that night, the gaseous water in the air will liquefy into small droplets, many of which form fog.

1. Due to the warming of the underlying surface, the fog droplets evaporate;

2. The wind speed increases, blowing away the fog or lifting it into clouds; Then there is turbulent mixing, water vapor is transferred, heat is transferred downward, and near-surface droplets evaporate.

3. The reason for the formation: when the relative humidity reaches 100%, the water vapor in the air will condense into fine water droplets suspended in the air, and the dust will reduce the visibility at the ground level, and this weather phenomenon is called fog. It usually occurs in spring between February and April.

Conditions for formation: one is cooling, the other is humidification to increase the water vapor content. The types include radiation fog, advection fog, mixed fog, evaporation fog, etc.

When the fog listens to the wind, the fog wants to go around and play. Then it went to the sea, to the mountains, to the lakes.

The fog drifted in the air, and as he walked, he saw a little bird, and he said, "Little bird, can you do me a favor?" The bird said, "I don't know who you are, I'm going to find other friends." With that, the bird flew away.

Then he saw a little river, and he said, "Little river, can you do me a favor?" Xiaohe said, "I don't know who you are, I'm going to find other friends." With that, Xiaohe left.

The wind blew on the sea, and the sea made waves, and the waters of the sea began to make waves, and the water became fierce. The fog blew all over his body. "Yes!

When it came to the sun, they saw white clouds, blue sky, green grass, red flowers, how beautiful it was! Then they came to the brook, and they saw cute little fish, and big crabs.

It saw birds flying in the sky, trees swimming in the water, and small fish swimming freely in the sea. At this time, it said, "Little bird, you are so beautiful, you are so tall in the big tree, you are so beautiful in the lake."

As soon as the wind sees the wind, it wants to blow it into the sky. The wind made the bird, "Wow! Such a big lake, I really want to live in it.

It went to the high mountain again, and it said, "I really want to live on such a high Kaiqiao Mountain." ”

Then I happily stayed.