Why is the weather in Guangdong colder than that in the north this week?

Friends in Guangdong always feel biting cold whether they are standing, sitting or not sitting. No matter how much clothes they wear, they don't know where the cold air seeps into their bones. The best way under the evil wind and drizzle is to nest under the covers! No need to go to work! The happiest thing in the world is this!

However, the weather in Guangzhou will remain unchanged in the coming week.

I must work! I want to work! I want to work! Can you not go up?

By the Pearl River in Guangzhou.

Conghua campus

It snows in the city near Nanling, Guangdong! (The picture below shows the snow at 1 1 in Lianzhou City, Qingyuan City.)

Why do you think Guangdong is colder than the north?

Conditional humidity, temperature, wind speed and light affect temperature, among which humidity has a great influence on the sense of cold and warm of human body.

October and February are the coldest seasons in Guangzhou, with an average temperature of 12- 18 degrees Celsius. However, the winter humidity in Guangzhou is relatively high, generally around 85%, while the average humidity in the northern region is around 20%, with a difference of 65%. According to meteorology, when the humidity increases by 10%, the temperature felt by human body decreases by 1 Celsius. The actual "temperature" in Guangzhou is about 6 to 7 degrees. The weather will be as low as 5 degrees this week. In percentage terms, how small is it now? This is why it is colder in the south than in the north in winter. In the south, the cold and humid air is attached to the north wind, so it is very appropriate to use the word "transparent"

Is there such a big difference between north and south in winter?

"The coldness in Northeast China is overwhelming, the coldness in Hong Kong is symbolic, the coldness in Beijing is different from that inside and outside, and the coldness in Jiangnan is profound." This is a very popular post on the Internet. The website of Korea Economic Review also published the article "Jiangnan is in China, it is very cold in winter" on June 65438+1October 65438+July this year, aiming at pointing out the lack of necessary heating equipment in southern China in winter. So, is it really so cold in winter in the south? Why is it colder in the south than in the north?

There are different thermal insulation methods in north and south buildings.

The difference of indoor cooling and heating in winter between the north and the south is not only the factor of central heating in the north, but also the difference of implementation standards of building external wall insulation system.

Building thermal insulation is an aspect of building energy saving. The reporter learned from Mr. Su, the head of Ziyang Morgan Times Engineering Department, that building insulation generally adopts two methods, namely external insulation and internal insulation. Exterior wall insulation is often used in buildings in the south, but it is generally used in the north because of the cold weather.

From the perspective of construction cost, the cost of external wall internal insulation is lower than that of external wall external insulation. Therefore, for the south where the winter temperature is generally above zero, more developers choose low-cost external wall internal insulation to deal with the thermal insulation function of buildings.

It's cold, so be sure to take care of yourself. Pay more attention to the relatives around you, especially the children and the elderly. Pay attention to your health!