What will happen to the direction of the typhoon? What is the most decisive thing?

In everyone's mind, typhoon is a dangerous and extremely dangerous natural weather. At the beginning of the typhoon, it was actually a tropical cyclone. When the maximum wind force at the center of tropical cyclone is 12 or above, it is called typhoon.

The rotation direction of a typhoon is usually most influenced by the geostrophic eccentric force. So what is the moving direction of the typhoon and what factors are affecting it?

First,? Simply put, this effect is actually the effect of the parameters of Coriolis force changing with latitude. At the equator, Coriolis force is the weakest; At the poles, the Coriolis force will increase.

The movement of tropical cyclones is influenced by Coriolis force. When the tropical cyclone moves to the poles, the Coriolis force increases, and the tropical cyclone will have the inertia of moving to the northwest. But overall, the influence of Coriolis force is still very small.

Second, the degree of symmetry of tropical cyclones. Tropical cyclone itself is a convective weather system, and air will continue to enter this convective system.

If the tropical cyclone is asymmetric, the air convection from different places will be different, thus affecting the movement of the tropical cyclone.

Third, large-scale atmospheric movement There is a large-scale air movement on the earth. Compared with this air movement, tropical cyclone is only one of the local weather systems. Therefore, the movement of tropical cyclones will naturally be affected by the atmospheric movement of the earth itself.

Four, the interaction of other weather systems is mutual, so the movement of tropical cyclones will also be affected by other weather systems.

For example, if a tropical cyclone has Fujiwara effect with other tropical cyclones, its movement will become elusive. In addition, tropical cyclones are also affected by other low-pressure systems, convective weather systems and monsoon.

5. When the topography is close to the land, the influence of topography is especially obvious.

For example, when landing, the flood gas in the lower layer of tropical cyclone is affected by topography, which changes in quality and quantity, thus affecting the movement of subsequent tropical cyclones. Not only that, large islands at sea will also have an impact on typhoons.