Is it still hot in summer?

Is there still high temperature in the summer of 2022?

Is there still high temperature in the summer of 2022? It is very hot in summer. The last thing many people who are afraid of heat like is the arrival of summer. Some time ago, because of the eruption of Tonga volcano, there were many places where there was no speculation and remarks about the summer year. Next, let's find out if there is still high temperature in the summer of 2022.

Is it still hot in summer? 1There must be hot weather in the summer of 2022. According to scientists' research, the eruption of Tambora volcano, which led to 18 16 "the year without summer", is the main reason. But in fact, there are other volcanoes' contributions, because from 18 12 to14, there were many small-scale volcanic eruptions, which made the accumulation of volcanic ash in the atmosphere amazing, and finally led to a "summer-free year" in the northern hemisphere, which was originally a temperate zone and a cold zone.

As far as the scale of Tonga volcano eruption is concerned, although it has a certain impact on the atmosphere, it is far from enough to cause "no summer in a year".

From the current point of view, it is difficult for Tonga volcano eruption to lead to a "year without summer" in 2022, and even its impact on the global climate is negligible. So the cold air that will affect 25 provinces in China has nothing to do with Tonga volcano. This round of cold air affecting China is related to the polar regions. The low temperature in winter in the Arctic region will form a "cold source" and is also the hometown of cold air.

However, the cold air here will go south for various reasons and continue to develop in the "cold wave key areas" of Siberia. As soon as there is a suitable opportunity, it will affect our country.

When this round of cold air affects our country southward, the Himalayan mountain area is developing the south branch trough again. It imports warm and humid air from the ocean to our country, and when cold and warm air meet, it will form rain and snow weather.

Due to abundant water vapor, there will be snowfall, rain, sleet and so on. In many parts of China, the second round of cold air went south, which caused a complicated snowfall stage. It is worth noting that during this round of rainfall and snowfall, there are heavy snow and local snowstorms in eastern Shaanxi, southwestern Shanxi, southern Hebei, Henan, western Shandong and southern Tibet, and some areas need to be prepared for cold.

There will be heavy rain in Guangdong, Guangxi and other places, and local governments should pay attention to prevent secondary disasters such as mudslides.

After the end of cold air from 20th to 24th, a new round of cold air will affect our country from 25th to 27th, so we should pay attention to the superposition. These two rounds of cold air heading south also made it a luxury for us to see the sun before the Spring Festival.

Will Tonga volcano have an impact on China?

Although this round of cold air southward has nothing to do with Tonga volcano eruption, Tonga volcano eruption may also indirectly affect China, especially the volcanic eruption point is located in the key sea area of El Ni? o-La Ni? a, and its eruption may lead to the early end of La Ni? a, and may even directly trigger El Ni? o phenomenon. This will lead to the intensification of the East Asian summer monsoon in the following year, which will lead to the southward movement of the rain belt in China.

On the whole, however, Tonga Volcano has limited influence on China, especially Tonga Volcano is located in the southern hemisphere and China is located in the northern hemisphere, which will only have an indirect impact on China, but will not directly have a serious impact on China.

Is it still hot in summer? 1. Why is it so hot suddenly in 2022?

One is extremely hot weather.

According to the latest news in July 2022, the chief forecaster of the Central Meteorological Observatory said that it is normal to have high temperature in summer, but the intensity and duration of high temperature this year are still extreme.

In recent years, extreme weather in China is still quite common. In some areas, it is not very cold in winter, but it will be very hot. In the future, this phenomenon may become the norm, because the global temperature is warming, and many countries have the same extreme weather. So I think summer is not so hot, protecting the environment, reducing carbon emissions and alleviating extreme weather.

The second is the formation of plateau warm and high pressure.

China Weather Network pointed out that the North Africa-Iranian high will develop eastward and connect with the continental high, forming an unusually strong warm high in the western plateau of China, which will bring fierce high temperature weather to the northwest and Sichuan Basin from July 6 to 8. In the future, North Africa-Iran high and continental high may even be integrated with subtropical high, resulting in a wide range of high temperatures.

Third, the lasting harm of the ecosystem.

Not long ago, the World Meteorological Organization (WMO) released Global Climate 20021year, which mentioned that in the past year, four key climate change indicators, including greenhouse gas concentration, sea level rise, ocean heat and ocean acidification, all set new records. The researchers also predict that if the average temperature of the earth's surface rises by 0.8℃ compared with the pre-industrial level, it is expected that there will be a heat wave like this every five years.

The reason of high temperature weather in 2022 is related to the long-term control of continental high pressure and the formation of unusually strong warm high pressure in the western plateau. However, the main reason for the hot weather is related to global warming, and high temperature weather may continue to appear in the future. The city will be much hotter than the countryside, because the exhaust emissions of cars will have a certain impact on the weather.

In addition, due to the influence of the subtropical high stretching from the west to the north, the influence range of high temperature weather will be further expanded in the future, and persistent high temperature weather will appear in most parts of the south. However, the daily maximum temperature in some areas such as the eastern part of northwest China and the eastern part of southwest China will approach or exceed the historical extreme value in the same period, and the high temperature weather in some areas will last for more than 10 days.

Generally speaking, this year's high temperature weather is related to many reasons, such as extreme high temperature weather, the formation of plateau warm and high pressure, and the lasting harm to the ecosystem. It is expected that such sustained high temperature will be hot10.5 days.

Is it still hot in summer? Why is it getting hotter and hotter in summer?

The climate this year is really abnormal. Sweet-scented osmanthus in previous years, nothing happened this year. Not only that, the temperature is still very high this year, and the temperature in many places in the south has exceeded 35 degrees Celsius. The sunny and hot weather makes people seem to have returned to midsummer.

According to the analysis, the main reason for this year's high temperature phenomenon is that the subtropical high is unusually northward, and there is a downward airflow in the area ruled by the subtropical high. During the sinking process, the temperature and pressure of the airflow will increase, resulting in high temperature weather in many places in southern China.

In the same period of last year, the subtropical high will move southward because of the direct point of the sun, and will gradually move southward, even back to the ocean, and the high temperature weather in China will be alleviated. However, this year, the subtropical high is unusually northerly and very strong, so that the temperature in many parts of China remains high for a long time, and the temperature in some areas is even as high as 39 degrees Celsius, which is comparable to that in midsummer.

Affected by the subtropical high, the warm and humid air flow from the ocean will go deep into the inland of China along the subtropical high ridge, and meet with the cold air from the north at the northwest side of the subtropical high, resulting in more rain in the north of China this year. The annual rainfall in Henan and other places even exceeds that in most southern cities.

The subtropical high stays in the south for a long time, which will also lead to continuous sunny and hot weather in the south, and will also cause summer drought in the long run. It can be seen that the subtropical high has a great influence on the climate, agriculture and production in the north and south of China. Once the subtropical high is abnormal, it will also lead to abnormal climate in China.

Global warming will lead to frequent cold winters.

The direct feeling brought by global warming is getting hotter and hotter, but in fact, global warming will also lead to frequent cold winters, which actually breaks our cognition. Why is there a cold winter when the whole world is getting warmer?

First of all, we should know that the Arctic is the source of cold air in the northern hemisphere. Under normal circumstances, the climate in the Arctic is cold, and the air contraction is reduced, forming a polar high pressure area; However, when the equatorial temperature is high, the air expands and rises, forming an equatorial low pressure area.

It is precisely because of the huge temperature difference between the equator and the polar regions that various pressure zones are formed on the earth. In the mid-latitude region, there is a westerly belt parallel to the equator.

The westerly belt moves from west to east along the latitude circle, which can bind the cold air in the north to the polar regions. However, with global warming, the temperature in the Arctic is obviously faster than that in other regions, which is called "polar amplification effect", which means that the temperature in other regions will rise by 1 Celsius, and the temperature in the Arctic will rise by about 2 Celsius.

The rapid warming in the Arctic has narrowed the temperature gradient in the polar and equatorial regions, making the westerlies very unstable. The unstable westerlies will not be able to suppress the cold air from the Arctic, leading to the southward movement of cold air and the global temperature drop.

Especially in the year when La Nina phenomenon appears, it will further aggravate the probability of cold winter. That is to say, although global warming will lead to an increase in the global average temperature, global warming will also lead to extreme high temperature and extreme low temperature events, and extreme events will become more extreme. It is precisely because of this that all countries in the world should complete the peak of carbon dioxide emission and carbon neutrality, and strive to control the global average temperature within a certain range.