Tell everyone about the typhoon.
How is a typhoon formed?
Typhoons originate from tropical seas. Due to the high temperature, a large amount of seawater is evaporated into the air, forming a low pressure center. With the change of air pressure and the movement of the earth itself, the inflow of air also rotates, forming a counterclockwise air vortex, which is a tropical cyclone. As long as the temperature does not drop, this tropical cyclone will get stronger and stronger, and finally a typhoon will form.
What is a typhoon landing point?
A typhoon is a cyclone around a central point, which is called the eye of the typhoon and is a sunny day in the typhoon area. The wind speed in the area where the eye of the eye passes often drops rapidly or there is no wind, and the typhoon cloud wall area is often the most dangerous place. The maximum wind speed of typhoon appears inside the cloud wall, and the strongest rainstorm appears in the cloud wall area.
In the definition of meteorology, a typhoon is a landing when the moving track of the center of the typhoon intersects with the coastline. In other words, before the typhoon landed, the peripheral cloud system had affected the coastal areas.
China has a subtropical monsoon climate, and the South China Sea summer monsoon transports water vapor from the ocean to the land. During the movement of typhoon, it will be wrapped by warm and wet water vapor, which will bring a lot of typhoon rain when landing; After the typhoon landed, it lacked the supplement of ocean water vapor and was affected by ground friction, so it released energy by wind and rain. So to sum up, typhoons will usher in storms before and after landing.
How is a typhoon named?
3 1 Typhoon Committee * * adopts the nomenclature of tropical cyclones in the northwest Pacific and South China Sea, with a total of 140 names provided by 14 members in the Asia-Pacific region, including Cambodia, China, North Korea, Hong Kong, China, Macau, China, China, Japan, Laos, Malaysia, Micronesia (Federated States of), Philippines, South Korea, Thailand and the United States.
These 140 names are divided into 10 groups; 14 names in each group (each member provides 1 name) are arranged alphabetically by each member. Named tables are recycled in order.
These countries have their own characteristics when naming typhoons. Among them, the Japanese are "constellation control", China is "myth control" and Southeast Asian countries are "animal and plant control". Typhoon No.9 "Litchi" is a kind of fruit in Vietnam, also called yolk fruit.
It can be seen from the latest typhoon naming table that these two typhoons are "Lichima" and "Rosa" respectively. According to this order, the next typhoon 10 this year is named "White Deer" in China.
Of course, these names are not fixed. Once the typhoon causes heavy loss of life and property, it will be deleted from the list, and the vacancy will be re-recommended by the original providing member. In 2005, the "Dragon King" raged all the way, causing economic losses of 7.478 billion yuan in Fujian, which was eventually replaced by "Anemone".