Blizzard in the north, the temperature in many places in the south exceeds 3 1 degree. Why is the temperature difference between north and south so big?

1 1 yes1in the middle and late October, the northern cities have entered the cold winter, as usual, but the winter in the southern cities is getting later and later. It stands to reason that the temperature in southern cities will basically remain at more than 10 degrees at the end of June165438+1October, and it will gradually decrease according to this trend, and then it will rain lightly, especially in Shanghai. Once it rained before winter, it was very wet and cold, and this wet and cold was not very low, but cold to the bone marrow. For example, Shanghai. In fact, southern cities are particularly cold in winter, and because there is no heating in cities, most of them rely on facilities such as hot air conditioners or heaters, which are very dry and uncomfortable to use.

1 1 month, the weather in southern cities is becoming warmer and warmer, which is closely related to global warming. Cities in the north, especially in the northeast, actually started heating very early. Heating has been advanced from September to 65438+ 10, because of the special geographical location in the north. Heating in Beijing is also later than that in Northeast China. In fact, the heating equipment is quite comfortable, at least not so dry and uncomfortable. Compared with Shanghai, a city that often turns on hot air conditioning in winter, radiators are actually much more friendly. And more and more people will choose floor heating when decorating, which makes people feel better than radiators.

According to the meteorological department, the high temperature in southern cities is actually only short-lived. After the northern cold air strikes, the southern cities will also cool down in a short time. For example, the highest temperature in Changsha is 30 degrees, but it quickly drops to around 9 degrees in a few days. In fact, it is very necessary for people to add clothes in time according to the weather forecast. People who are prone to colds or people with low immunity, such as the elderly and children, should add clothes in time, otherwise they will get sick easily. Patients with cardiovascular diseases should also pay attention to their emotions and take medicine on time.

La Nina phenomenon leads to a saying that the winter of 202 1 year will be a cold winter, even an extremely cold winter. This statement is overturned, which will affect climate factors, but compared with the surface temperature, La Nina phenomenon can not change the trend of global warming.