2021-will it be particularly cold in winter in 2022? What does La Nina mean?

On the 11th National Day this year, I believe everyone has already felt how cold it will be this winter. At home, I have put on a down jacket. It is said that it will be particularly cold this winter because of La Nina phenomenon. Let's take a look at the impact of La Nina phenomenon on us.

What does 1. La Nina mean?

La Nina phenomenon refers to the abnormal cooling of seawater in the central and eastern Pacific Ocean, which is an extreme weather change phenomenon and will also bring global climate anomalies. La Nina will make the east coast of the world dry and the west coast wet. For six consecutive months, the seawater temperature was lower than 0.5 in normal years, even accompanied by hurricanes, heavy rains and severe cold.

La Nina phenomenon refers to the abnormal cooling of seawater in the central and eastern Pacific Ocean. As the southeast trade winds blow the seawater heated by the sun to the western Pacific Ocean, the sea level in the western Pacific Ocean will rise, and the air pressure will drop after the seawater temperature rises, causing the bottom seawater in the east to turn up and get cold.

La Nina generally lasts for a long time, basically lasting for six months, which leads to the seawater temperature being lower than 0.5 in normal years and often alternating with El Ni? o phenomenon. La Nina will be accompanied by global climate chaos, and typhoons and tropical storms will be triggered in some areas.

La Nina phenomenon will lead to drought on the east coast of the world and wet on the west coast, which will not only cause floods more easily, but also cause global climate anomalies. At the same time, La Nina phenomenon is usually accompanied by hurricanes, heavy rains and severe cold, and even leads to a decrease in temperature and an increase in rainfall near the equator.

2.202 1 Will it be particularly cold in winter?

It will be very cold. 2021-The winter in 2022 is expected to be colder, mainly because this year is the year of La Nina. The so-called La Nina year means that the probability of cold winter in the south is higher than that in the north, so it is prone to extreme cold.

Being in La Nina state means that the SST in the equatorial eastern Pacific is 0.5 lower than normal, which has a very obvious impact on China's climate. Under the influence of La Nina phenomenon, the meridional circulation in East Asia is abnormal, which is very beneficial to the southward movement of cold air in northern China.

It gave us a cold winter, so we see that this cold winter has already appeared.

3. How do the elderly keep warm in winter?

Indoor warmth

In the living room of the elderly, heating equipment must be used in winter to keep the room temperature above 15 degrees Celsius. If the room temperature is too low, the elderly are vulnerable to cold pathogens, which will induce respiratory system and cardiovascular and cerebrovascular diseases, resulting in serious consequences.

There are many people sleeping in fire pits in winter in the north, and more and more people are using electric blankets in recent years. No matter which one is adopted, it is better to have a suitable temperature.

Similarly, the room temperature should be around 18~20℃ regardless of whether the stove, heating or air conditioner are used, and the temperature should not be too high, so as to avoid the yang being disturbed, causing it to leak out, or the internal heat accumulating, leading to excessive fire due to yin deficiency, stagnation of phlegm heat, onset in spring or inducing recurrence of chronic diseases.

thermal insulation

In snowy weather in winter, the elderly should prevent falling. Especially when there is ice and snow on the road, it is best not to go out.

If you need to go out, you should be accompanied to prevent you from slipping and falling. Old people living in buildings should be careful when going up and down stairs, and it is best to have someone to help them. There should be lights at the corners of corridors and stairs at home so that the elderly can see the road clearly when walking.

Many elderly people suffer from chronic diseases, and their activities are inconvenient, so their families have to take care of them. When going out, take a bath in the bunk bed, and pay attention to prevent falling, so as to avoid accidents such as fractures and cerebral hemorrhage.

Exercise can effectively keep out the cold.

Go to work in the morning in winter and see the old ladies who come back from morning exercises. They are all in high spirits, as if they didn't catch a cold. Therefore, life lies in exercise. Using exercise to keep out the cold in winter not only consumes sugar and fat to generate heat in a short time, but also promotes the work of cardiovascular and cerebrovascular systems, promotes blood circulation and enhances immunity.

Old people are thrifty, thinking that closing doors and windows at home in winter can reduce heat loss, but indoor air is not circulating and turbid bacteria breed. Such a living environment also makes the elderly more susceptible to illness and their ability to keep out the cold decreases.