Why did the extremely cold weather come?
Why did the extremely cold weather come
The first reason is the change of air pressure over the Arctic, which is called the Arctic Oscillation. Under normal circumstances, there is a low pressure over the North Pole. The farther south, the higher the pressure, and the high pressure generally presses the low pressure. However, under abnormal circumstances, the low pressure over the North Pole will become higher, and the cold air over the North Pole will flow southward at this time.
The second reason is La Niñ a phenomenon, that is, anti-El Niñ o phenomenon. This phenomenon is that when the seawater temperature is different, the temperature difference of seawater will be accompanied by hurricanes, which will lead to extremely cold weather.
and the third factor that causes extreme weather is global warming. Originally, the Arctic Ocean was covered by a huge ice sheet, but when the temperature rose, the ice sheet melted, which led to the upward flow of relatively high hot air on the sea surface. With the atmospheric circulation, cold air would be squeezed to the south. If the first two factors are superimposed at this time, resulting in changes in air pressure and seawater temperature, it is likely to cause extremely cold weather.
Therefore, extreme cold weather is regarded as one of the natural disasters caused by global warming.
extreme cold weather conditions in various countries
Italy: some areas are covered with ice and snow. Traffic in northern and central Italy was chaotic due to snowfall, and more than 6 passengers had to stay on the train for the night. The cold killed a baby, a 76-year-old man and a tramp. The local meteorological observatory said that it was the coldest winter in Italy in 27 years.
France: A severe cold warning was issued in nearly half of the area. The army set up 6 shelters in Paris to take in the homeless.
Germany: The snowfall in Berlin continued, and the temperature dropped to -1℃.
Belgium: The sculpture of a child urinating in Brussels, a famous tourist attraction, went on strike because of freezing caused by low temperature.
Poland: The temperature dropped to -32℃. Police said that 9 people were frozen to death on the 2nd, bringing the number of people frozen to death in Poland since last week's cooling to 29.
Ukraine: It is a country that is greatly affected by this cold current. According to statistics released by the Ukrainian Ministry of Health on the 2nd, in the past week, there were 11 people frozen to death in China, 64 of them were frozen to death in the street, and some of them died after being taken to hospital. The temperature in Kiev, the capital, dropped to -27℃ on the 2nd, and the temperature in Carpathian Mountains fell below -3℃. Tens of thousands of people have taken refuge in more than 2, temporary shelters to avoid the cold.
Japan: Recently, there have been heavy snowstorms in all parts of the country, and the snow in some areas even exceeds 5 meters. As of Tuesday, the snowstorm that lasted for several weeks in northern Japan triggered an avalanche and disrupted the transportation network, killing at least 56 people. Japan's Hokkaido and northern Honshu Island have been covered with thick snow. On the 2nd in Aomori, Japan, the temperature dropped to -9.2℃ and the snow depth reached 4.29 meters.
Romania, Serbia and Bulgaria and other European countries: * * * At least 3 people died in cold weather, including 22 in Romania. In Sofia, Bulgaria, local media reported that the money in the ATM was frozen, causing the ATM to malfunction. The severe cold also caused some sections of the Danube to freeze. In order to protect ships, Bulgarian authorities had to transfer some ships to other ports. At least 1, people in Serbia are trapped in remote villages due to traffic disruption. Some villages in Bosnia can only rely on military helicopters to drop food and other necessities. In Latvia, 1 people have frozen to death in Riga, the capital alone, and the death toll in other areas has yet to be counted. In Estonia, the organizers had to stop holding ski competitions because the temperature dropped below -3℃.
precautions in extremely cold weather
1. First of all, try not to go out when the weather is extremely cold. At the same time, you need to keep a certain amount of exercise at home, so that you can keep warm better, especially in windy and snowy weather. There will be some danger when you go out.
2. For extremely cold weather, you must choose warm boots suitable for the temperature. As long as the lower body does enough warm work, it won't look so cold.
3. In extremely cold weather, it is necessary to thicken the down jacket, and it is best to choose a longer one, which also has a good effect on leg warmth. It won't be too cold if it is paired with plush boots.
4. For friends who are afraid of the cold, although they wear a thick down jacket, they must wear a tight bottoming warm coat under the down jacket, and double the warmth to achieve a better warm effect.
5. Workers in special posts must wear cold-proof hats, masks and gloves. To prevent frostbite in all parts of the body.
6. Due to personal physical differences, in extremely cold weather, you must add clothes according to your own situation, and never ignore the temperature for the sake of grace. As long as you keep warm enough, you can better show your unique charm and have a healthier body.