It often rains heavily in the south. What is this phenomenon? What does it matter?

It often rains heavily in the south. What is this phenomenon? What does it matter? Global carbon emissions are relatively large, and there are many unreasonable places in the process of global warming and urbanization. In some big cities in the south, there are many tall buildings, cars running everywhere, air conditioners turning on everywhere, the heat of the city has greatly increased, and the heat island effect is very strong. In addition, some cities in the south are vulnerable to typhoons. When a typhoon comes, a lot of sea level will be swept in. When it rains, it will be a rainstorm. In addition, urbanization is serious, but the urban drainage system is not so perfect. When it rains, it is difficult to discharge the water in the city, resulting in waterlogging in the city.

This area in the south of China belongs to tropical and subtropical monsoon climate, and the average annual precipitation is above 800 mm or even 1000 mm, and the precipitation is relatively concentrated in the same period of rain and heat. It may not rain at ordinary times, but it is a rainstorm when it rains. Such heavy rains often occur after typhoons, such as Fujian a few years ago. After typhoons, the rain increased, and there were heavy rains in Fujian for several days. This kind of weather is terrible, the urban drainage can't be discharged, and the city is waterlogged, causing many crops to be flooded. The city is full of water, a sea of Wang Yang.

Also affected by global warming, global carbon emissions are increasing. Air conditioners and cars are everywhere in the city, and these emissions are very large. Now the glaciers in this Arctic are getting smaller and smaller, local climate anomalies are beginning to increase, and extreme weather is increasing. In addition, the scale of cities is getting bigger and bigger, and the urban population is increasing. There are many cities in our country, especially some cities in the south. The bigger the city, the more people and cars there are, and the more air conditioners there are, resulting in excessive heat emission. Coupled with the high-rise buildings in the city, it is easier to cause hot air flow, and the thicker it is, the easier it is to cause precipitation, and this precipitation is more concentrated. In summer, there are many heavy rains. I hope everyone will pay attention to this phenomenon, improve the urban drainage system and reduce the impact of heavy rain on the city.