Extreme weather is frequent all over the world. What is behind the drought in the south and the flood in the north?

We can't change the extreme weather in the world, we can only analyze the formation of these weather. The main reason for the drought in the south and the flood in the north is that there are many typhoons in Jiangsu and Zhejiang, but there are no typhoons in South China in the flood season, so the flood will definitely be in the Yellow River basin. Specifically, let's talk about the following points:

1. Typhoon can cause heavy rain and transport rain clouds. As we all know, typhoon fireworks seriously affected Henan and suffered a once-in-a-century torrential rain. Fireworks are registered in Jiangsu and Zhejiang, and many people don't understand why they have such a great influence on Henan.

In fact, this principle is very simple. The typhoon is spinning. It will absorb the airflow and send it out. When transporting, if you pass through a mountainous area, it will be slowly absorbed under the block of trees and mountains. But after the fireworks log in, the conveyor belt is plain, so its consumption will be very low. We can look at its road map.

Through the route, we can know that fireworks are all in plain areas, so it can directly blow through Ma Pingchuan with rain clouds. However, why did it just rain so heavily in Zhengzhou? Because when I got there, I met Taihang Mountain, and all the rain clouds were piled up in Henan and Hebei. Zhengzhou is just in front of Taihang Mountain, so it has become the hardest hit area. Let's take a look at the topographic map of our country:

So why did Henan suffer before the fireworks landed?

That's because before the typhoon landed, the airflow was already moving, but not on the ground, but in the air, so although we didn't feel the wind, the wind in the air had sent the rain cloud to where it was going. This is the importance of typhoon path prediction.

Second, typhoons also attract air currents. Speaking of conveying airflow, let's talk about the attracting airflow of typhoon.

As mentioned above, the typhoon is rotating, its center is a vortex, and its airflow just sucks the surrounding airflow into the middle, just like our fan. It will suck the airflow around it by rotating, and then a strong wind will come out from the eye of the typhoon, which will become a typhoon.

If there are rain clouds in some areas, the airflow formed by the typhoon will slowly disperse the rain clouds, making the original rainstorm smaller. If there is cold air, it will gradually cool down.

However, why was there a rainstorm in Shanxi before? Actually, fireworks. As I said just now, the fireworks stopped before they reached Taihang Mountain, and it rained in Zhengzhou. Just letting it go doesn't mean that the whole Taihang Mountain has no influence at all. So now the temperature drops, cold air comes, rain condenses, and rain naturally comes.

After the double typhoons in South China, the rainstorm in Shanxi and Shaanxi should begin to clear up. Now, two typhoons "Lion Mountain" and "Compass" in South China are coming. The two typhoons have cooled down the two vast areas, that is, they sucked down the cold air in the north, and then slowly, the rainstorm in several places in the north will gradually become smaller and clear, and then there should be no big problem in winter.

After more than two months, in theory, if artificial rainfall is carried out in the rainstorm in Shanxi, the artificial rainfall mode will be started in August and September. When there are rain clouds, the rain will disperse, and the disaster may not be so serious. However, the difficulty is that it is still a guessing stage. Generally, artificial rainfall will only start when drought comes, and it is okay for local people involved in artificial rainfall to be drowned by spitting.

If there were more typhoons in South China, there would be no storms in North China. We can look forward to the past ten or twenty years. In the years of frequent typhoons in South China, there is basically no rainstorm in Henan, Hebei, Shanxi and Shaanxi, which should be less rainy. There are almost no typhoons in South China this year, so the south is dry and the north is seriously flooded.

When there are many typhoons in South China, the Yangtze River basin will be seriously affected, while when there are many typhoons in Jiangsu and Zhejiang, the Yellow River basin is naturally prone to floods.