Why is it so cold? Why is it so cold this year

The first reason is that we are in a La Niña state this year, that is, the sea surface temperature in the eastern equatorial Pacific is lower than normal and below the negative degree, and the impact of this phenomenon on China's climate is very obvious. It's going to have a cold winter, so we can see that this cold winter is coming this year. The second reason is that the two conditions that must be met for snow or rain are 1

Warm and humid air currents from the tropics. 2.There is cold air from the alpine regions.

Areas of winter snowfall (the same is true for areas of summer rainfall) are located near fronts, i.e. at the junction of warm and cold air masses. This position is not fixed, it is determined by the strength of the forces of the two natures. The cold air mass is weak, and the front and precipitation area are higher latitudes, and the cold air mass is stronger, and the front and precipitation areas are lower latitudes.

The land cold high that affects China in winter is the Asian high (also known as the Mongolian and Siberian high pressure) centered in Mongolia and Siberia, and its sphere of influence is very large, which has a great impact on the weather in China, especially in the northern region. The cold air that affected our country in the early part of midwinter this year is relatively weak, and the number of times is not much, even with the cooperation of warm and humid airflow, it is not easy to snow without cold air. However, since 2008, the Asian high pressure is very active, and the cold air mass continues to form southward to affect our country, resulting in a wide range of windy cooling weather, but because the warm air mass in the south this year is also very active, a large number of warm and humid air currents from the Pacific Ocean and the Indian Ocean frequently visit the southern region, when the strong cold air mass from Siberia, Mongolia quickly moves south to the southern region, and meets with the warm and humid air mass, the cold, warm two just combined.

Affected by the combination of these two airflows, there has been a lot of rain and snow in recent times, especially in the Yangtze River basin, and the weather has been maintained at low temperatures for a long time. If there is only a strong cold air mass, and there is no large amount of water vapor provided by the warm and humid air mass, there will only be strong winds and cooling weather in the south; If there is only a large amount of water vapor provided by the warm and humid air mass, and no cold air mass is present, there is no catastrophic weather at all. And when both are in place, disaster strikes.

This is winter, and there is a big problem with not being cold in winter.

Because the world is so cold.

This year's cold is due to the geographical environment and other reasons.

The severe cold of the Spring Festival in 2023 is caused by the geographical ring and other reasons, and it has not jumped out of the Wuzhi Mountain of global warming at all. First of all, in terms of geographical environment, China has always been the coldest at the same latitude on the east coast of the Eurasian continent, the world's largest continent, relying on Siberia, the largest source of cold air in the northern hemisphere, far away from the warm current of the Kuroshio Current.

Taking Mohe as an example, its latitude is between 50 and 53.5 degrees north latitude, which is about the same latitude as Mohe, and is the same as London in the United Kingdom, Hamburg in Germany, Vancouver in Canada, Kazakhstan in Kazakhstan and Astan and other cities.

Climatic context. Because of the Qinghai-Tibet Plateau, there is always a powerful trough at the eastern end of the East Asian continent, called the East Asia Trough, and cold air likes to move south on the west side of the East Asia Trough.

Unfortunately, in winter, the East Asian trough is usually near the northeast.

Therefore, the extremely cold air mass in Siberia likes to go south in the northeast, and sometimes it is even connected with the extremely cold area of Siberia and the Great Khing'an Mountains in the northeast to form the largest cold storage in the northern hemisphere. In this way, in terms of climate, the Daxing'an Mountains are colder than those of the same latitude in northern Central Asia.

Definition of warm-up time in 2023:

Generally, March 22, after the vernal equinox, it will not be colder anymore, because this is when the direct point of the sun begins to move northward from the equator. On the winter solstice, the weather will get colder and colder. Enter the winter solstice solar terms of the base chain stove in the 24 solar terms.

This means that the coldest part of the year is just around the corner. Although after the winter solstice, the direct point of the sun gradually swings northward from the Tropic of Capricorn, because the solar radiation energy received by the earth is much less than the energy lost, the weather trend in the northern hemisphere in the next month or so is to get colder and colder, and you need to wear more clothes after the cold time is up. <>

Is it that cold? You may be the other person who thinks you're wearing too much.

If you want to reply, just say yes, I think it's so cold, everyone's perception of temperature is different!

I don't think it matters, it's that the feeling in your heart is not cold! Because the air volume is smaller! You find out if the pipe of this air outlet is blocked, and ask the master to check it carefully!

Last time I saw the master help me fix the air conditioner, when I stepped on the accelerator, the pressure gauge did not change ......It's how you feel in your heart. Because the air volume is very small! Find out if the pipe at the air outlet is blocked, ask the captain to check it carefully!

The last time I saw the master helping me fix the air conditioner, when I stepped on the accelerator, the pressure gauge didn't change, and I thought it was okay. It's how you feel in your heart! Because the air volume is very small! Find out if the pipe at the air outlet is blocked, ask the captain to check it carefully!

Of course it's cold in winter, so why is it cold in winter?

To put it simply, because the temperature of the air in winter is much lower than the temperature of the human body, and the temperature between objects (including between the human body and the surrounding air) needs to be kept in balance, the temperature on the human body will spread to the surrounding air, and the human body temperature will decrease, and there will be a feeling of cold. Therefore, people have to wear thicker clothes in winter, the purpose is to prevent the spread of body temperature, but also to prevent cold air from coming into contact with the body, so as to achieve the effect of keeping warm.

This is analyzed from a physical point of view.

Don't be cold when it's cold!!