The sea is salty, and typhoons come from the sea. Why is rain fresh water after landing?

Because typhoons bring water vapor from the sea, and then go deep into the air and become cold and water. Instead of directly rolling the salt water in the sea into the air and then landing inland. This is why the rain in the sky after the typhoon is fresh water.

Typhoon belongs to the wind, which may roll up waves and form vortex waves in the sea. But as far as its gravity is concerned, it is difficult to roll the seawater inland at a long distance. Therefore, in coastal areas, if a typhoon strikes, there is a lot of garbage at the coastal mouth. In this case, it is possible to make seawater enter the city. In this case, the water is salty.

But the fresh water in the sky cannot be salty. People who have studied physics should understand this better. It rains by itself because cold air condenses into raindrops when it meets water vapor. The typhoon took away a layer of water vapor evaporated at sea.

The generation of water vapor may be due to the hot weather at that time, and the evaporation of water on the sea surface produced a layer of water vapor. Basically, typhoons will come from the sea, and it is unlikely that typhoons will automatically appear inland. After all, the inland is not so wide, which has caused some obstacles to his trip.

So it is basically a typhoon formed by tropical cyclones at sea under the influence of temperature. This year, China was hit by a typhoon. In the hot summer, a huge typhoon blew from the sea and blew away many coastal cities.

Causing urban floods and heavy losses. But this is a natural factor that we cannot predict and estimate. What we have to do is to improve the urban drainage system as much as possible and make preparations in advance.