Why is Shanghai hotter in summer and colder in winter than Guangzhou?

In summer, it often rains in Guangzhou under the influence of ocean airflow, and typhoons occasionally come. In summer, Shanghai is controlled by subtropical high, so it is hotter than Guangzhou. Shanghai is colder than Guangzhou in winter, because of the high latitude, weak solar radiation, short days and great influence of Siberian cold air.

For example, the construction of high-rise buildings should be stopped immediately, and an air duct should be left over the city. It is forbidden to build high-rise buildings in the air duct; Control the number of motor vehicles, improve traffic and slow down the hot hoop on the elevated road; Combined with the transformation of old areas, artificial lakes should be scientifically arranged to help the city cool down.

Extended data Shanghai is hotter than Nanjing;

First of all, there are more than 4,000 high-rise buildings in Shanghai, and the air circulation is blocked. Nanjing is less than Shanghai110. High-rise buildings are windproof, absorb heat and release heat (the building surface and top floor are 20 degrees Celsius higher than the green space).

Secondly, Nanjing's per capita green space is as high as 30 square meters, while Shanghai's per capita green space is only 9 square meters, although it has been vigorously built in recent years.

Third, the population is too large and too dense. Shanghai's resident population160,000, and the urban area is more than 8 million; There are less than 6.5438+million people in Nanjing and only 4 million people in the urban area. People need to consume and release heat, and the total amount in Shanghai and Nanjing is different.

Fourth, the living standards are different. The penetration rate of household air conditioners in Shanghai has reached more than 90%, while that in Nanjing is around 50%. The heat released by millions of air conditioners is tantamount to adding fuel to the fire in Shanghai.

Fifth, the number of motor vehicles in Shanghai has reached 6.5438+0.7 million, and Nanjing is less than half of that in Shanghai. The endless stream of motor vehicles seems to have put a hot hoop on Shanghai. It is inevitable that Shanghai will be hotter than Nanjing for several reasons.