How is a typhoon named?
The name of typhoon is to facilitate the public and the media to distinguish different typhoons in different regions and avoid confusion and misunderstanding. The naming of typhoons is divided into two regions, namely, the northwest Pacific Ocean and the northern Indian Ocean. In the northwest Pacific region, the names of typhoons are jointly provided by China, Japan, South Korea, the Philippines, Vietnam and other countries and regions, while in the North Indian Ocean region, the names of typhoons are jointly provided by India, Bangladesh, Maldives, Pakistan, Sri Lanka and other countries.
The list of typhoon names provided by each country and region contains a series of names, usually arranged alphabetically. Whenever a typhoon is generated, the next unused name is selected from the corresponding area list in turn to name the typhoon. If the typhoon causes serious losses or casualties, then this name will be eliminated and replaced by the next name.
This naming method can last for many years until the whole list is used, and then a new list can be started. This way ensures that each typhoon has a unique name, which is convenient for the public and the media to communicate and report.
Characteristics of typhoon:
1. Cyclone structure: The typhoon presents a very obvious rotating structure, usually a symmetrical round or oval cloud cluster. There is an eye in the center of the cloud, which is the center of the cyclone. The wind speed in the eye is low, the air is relatively calm, and the periphery of the eye is a high-speed rotating wind zone.
2. Strong wind: Typhoon is one of the most powerful weather phenomena in nature. The wind speed of typhoons can be as high as tens to hundreds of kilometers per hour, and strong typhoons can even reach a wind speed of more than 250 kilometers per hour.
3, a lot of precipitation: Typhoon brings a lot of precipitation, and the intensity of precipitation is very high, causing disasters such as heavy rain, floods and flash floods in a short time.
4. Storm surge: There is a rising sea area near the typhoon eye, which is called storm surge or storm surge, which will make the seawater in coastal areas soar and cause coastal erosion and floods.
5. Large-scale impact: The scale of typhoons is relatively large, and the diameter can generally reach hundreds to thousands of kilometers, so a typhoon can affect vast sea areas and land.
6. Short life span: The life span of a typhoon is relatively short, usually lasting from a few days to a week. Typhoons are often generated at sea, then gradually move to land, and then weaken and dissipate after landing.
7. Forecast and early warning: Typhoons can be predicted and monitored. The meteorological department will track and warn typhoons according to information such as satellites, radars and meteorological observation stations, and provide timely and accurate information and defense suggestions.