The principles for choosing typhoon names are that each name should not exceed 9 letters; be easy to pronounce; have no bad meaning in the language of each member; will not cause any difficulties to each member; and is not from a commercial organization Name; the name chosen should be approved by all members. If any member objects, the name cannot be used to name the typhoon.
From November 25 to December 1, 1997, the 30th meeting of the United Nations APEC/World Meteorological Organization Typhoon Committee (hereinafter referred to as the Typhoon Committee) held in Hong Kong decided that the Northwest Pacific and South China Sea of tropical cyclones were named with Asian-style names, and it was decided to use the new naming method starting from January 1, 2000. The reason why we use Asian-style names is also to consider the need for disaster prevention and reduction, so as to facilitate people's memory.
The principles for choosing typhoon names are that each name should not exceed 9 letters; be easy to pronounce; have no bad meaning in the language of each member; will not cause any difficulties to each member; and is not from a commercial organization Name; the name chosen should be approved by all members. If any member objects, the name cannot be used to name the typhoon.
The basis for naming typhoons
1. According to its shape
The name of typhoon is based on its shape. The shape of typhoon is mainly divided into three categories, namely typhoon , tornadoes and cyclones.
2. According to its intensity
Typhoon names are named according to their intensity. Typhoon intensity is divided into five levels, from weak to strong: tropical low pressure, tropical medium pressure, tropical High pressure, supertropical high pressure, supertropical low pressure.
3. According to the time of its outbreak
Typhoons are named according to the time of their outbreak. There are two main typhoon naming rules used internationally: one is formulated by the United Nations Meteorological Organization in 1947 The World Meteorological Convention, and the second is the 1981 Geophysical Oceanographic Typhoon Nomenclature jointly formulated by the United Nations Meteorological Organization and the International Oceanographic Society in 1982.