Why is it so hot in the summer of 2022?

Why is it so hot in the summer of 2022?

Why is it so hot in the summer of 2022? Although it is usually hot in summer, this year is special. Many places have been experiencing continuous high temperature, and many places even reached 39 degrees. No one knows how long the high temperature will last, so why is it so hot in the summer of 2022?

Why is it so hot in the summer of 20221why is it so hot in the summer of 2022?

The summer of 2022 is so hot because of extreme high temperature weather, the formation of plateau warm and high pressure, the lasting harm of ecosystem and many other reasons. Affected by 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.

There are 7 1 national weather stations in China, and the daily maximum temperatures in Lingshou (44.2℃), Gaocheng (44. 1℃), Zhengding (44.0℃) and Yanjin (44.0℃) are above 44℃.

Affected by the high temperature weather, since June 13, the electricity loads of seven provincial power grids and northwest power grids, including Hebei, Shandong, Henan, Shaanxi, Gansu, Ningxia and Xinjiang, have all reached record highs. Due to high temperature and little rain, soil moisture in eastern Zhejiang, western Henan, southwestern Shaanxi, southern Gansu and northern Sichuan is heavy, and drought in some areas continues or develops. Since July, many people in Zhejiang, Jiangsu, Sichuan and other places have been diagnosed with heatstroke, and there have been deaths.

Since the beginning of 2 1 century, the typical years of large-scale sustained high temperature events in China are 2003, 20 13, 20 17 and so on. Generally speaking, this year's high temperature event started earlier than the above three years, and its duration and the number of historical extreme stations are not as good as these three years. Although its influence range and the maximum temperature of a single station are less than 20 17, it has surpassed 2003 and 20 13.

There are more and more high-temperature heat wave events in the northern hemisphere.

According to the monitoring of the National Climate Center, in June this year, the global average temperature was about 0.4℃ higher than normal, the highest since 1979, and the temperature in northern Russia and western Europe was more than 2℃ higher. The daily maximum temperature in Spain, France and Italy exceeds 40℃, and many cities in France, Spain, the United States and Japan set new high temperature records. The temperature in Tokyo, Japan has exceeded 35 C for five consecutive days;

The population affected by high temperature warning in the central and eastern United States is about 654.38+0.25 billion, which is more than one third of the population in the United States. In Brandenburg, Germany, extreme high temperature aggravated the drought and caused forest fires. Compared with the same period in history, the highest temperature of this high-temperature heat wave event broke through the historical extreme value in Europe, East Asia and North America at the same time, with a wide range of influence, but the influence degree was not as good as that of the high-temperature event in 2003.

Since the beginning of 2 1 century, high temperature and heat wave events in the northern hemisphere in summer have become increasingly frequent. From June to August, 2003, most parts of Europe experienced the rare high temperature and heat wave weather for decades or even hundreds of years. The high temperature of 38-45℃ caused nearly 210.5 million deaths, and nearly10.5 million deaths in France alone.

20 17 From June to July, many countries in North America, Europe and Asia suffered from extremely high temperature weather. The highest daily temperature in Phoenix in the western United States reaches 47℃; Forest fires caused by continuous high temperature weather in Portugal, Spain and the Russian Far East; India and Pakistan have also suffered from persistent high temperatures and heat waves.

On June 19, 10, there was a record-breaking heat wave in the western United States, and the local temperature in San Diego, California was as high as 45℃, breaking the local high temperature record; There are many forest fires in northern California, and about 45 million people in the western United States are affected by high temperature and heat waves.

From July to September, 2020, the southwestern United States was the hottest and driest period in the same period on record. Serious fires broke out in California and western Oregon, with more than 8,500 buildings destroyed and 4 1 person killed. On August 16, the temperature in Death Valley reached 54.4℃. On September 6th, the temperature in Woodland Mountain reached 49.4℃, the highest temperature in the history of Los Angeles.

From June to July in 2002/kloc-0, there was a large-scale continuous high temperature weather in North America, among which British Columbia, Canada, set a record for the highest temperature in the country for three consecutive days in a week, causing more than 700 deaths.

Why is it so hot in the summer of 2022? 1. Extreme hot weather.

According to the latest news in July, 2022 10, 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, and bringing fierce high temperature weather to the northwest and Sichuan Basin on July 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.

Why is it so hot in the summer of 2022? Why is it so hot this year in 2022? The Central Meteorological Observatory gave a detailed explanation:

1. Global warming.

The main cause of global warming is burning fossil fuels, such as oil and coal. Deforestation and burning in some areas will also produce a lot of carbon dioxide, which is the greenhouse effect. When the greenhouse effect keeps accumulating, energy keeps accumulating in the local gas system, which leads to the temperature rising and global warming. Measures such as car restrictions and production suspension have only short-term and local effects, and cannot fundamentally change climate warming and smog pollution.

Second, the continuous La Nina incident.

La Nina is the opposite phenomenon of El Ni? o, that is, the seawater temperature in the cold water area of the equatorial Pacific Ocean is abnormally reduced. In July, 2022, the warm and high-pressure areas in the mid-latitude regions of the world continued to accumulate and developed rapidly, which led to unusually high temperature weather in a large area of the world. The temperature generally rises by 3-5 degrees, and some even higher, which brings great discomfort to people's production and life.

How long will the high temperature last in summer 2022?

Citizens' mobile phones have received high temperature warning information. Since July this year, from south to north, Shenzhen, Hengyang, Changsha, Wuhan and Jinan have continuously issued high temperature warnings, that is, this year has not yet reached the midsummer, and it has already ushered in more than ten days of continuous high temperature.

From the trend, after July 2 1, the high temperature in the south will continue to develop and expand, and the daily maximum temperature in Shenzhen, Fujian, Jiangxi, Zhejiang and other places will probably reach 39 ~ 42℃. In southern areas such as Guangdong, it is expected that there will be high temperature and little rain in the future 15-30, that is, from July 25th to late August. It is expected that the high temperature will last for about one month.

What should we pay attention to in the summer of 2022!

First, try to reduce outdoor activities.

Outdoor workers in Shenzhen and other places are generally equipped with small houses with air conditioning, which not only enhances the epidemic prevention ability, but also provides a more comfortable working environment for long-term nucleic acid detection personnel. The traffic police force is a big problem, so it is urgent to reduce the duty time, increase the number of staff and shifts, and pay more attention to the health of traffic personnel under the scorching sun.

Second, drink more food to cool off the heat.

Fruits, foods and drinks such as mung bean porridge and iced watermelon will be popular, so every family should prepare more and pay attention to the consumption of the elderly and children to relieve summer heat. Go to the seaside or swimming pool to cool off, remember to pay attention to safety. Soaking in water for a long time, especially sleeping in water, is a safety hazard. High temperature will produce dryness and heat, so we should pay attention to it both physically and emotionally.

Third, pay attention to the degree of physical endurance.

On the construction site, at the construction site, people are rushing around and working in the hot sun. You must always pay attention to your physical condition. If you feel dizzy, you must pay attention to rest. Remember to pay more attention to your health in high temperature. The government and related companies and factories should also pay more attention to and care for their workers, especially outdoor workers, reduce their working hours and pay attention to subsidies for preventing high temperature.