Typhoon vs Hurricane: Hurricane Florence will make landfall on the east coast of the United States at 0800 local time on Friday. Super Typhoon Mangkhut is bringing torrential rain and storms towards the Philippines.
Judging from the photos taken in space, the two weather systems look almost the same and they are both spectacular.
Why do we call one of them a hurricane and the other a typhoon?
Difference between Typhoon and Hurricane?
In particular, the terrible conditions of the United States in Houston and Miami, which made people feel the terrible Atlantic hurricane. power. At the same time, in August, Typhoon Hato struck most parts of southern China.
The strong wind blew away pedestrians, trucks, and even overturned the roof, which was impressive.So,Now, is there any difference between a hurricane and a typhoon?(typhoon vs hurricane) How are their names named?
What is a tropical cyclone?
They are all tropical storms, but they are known by different names in different places.
They are called “hurricanes” in the North Atlantic, central North Pacific and Northeast Pacific.
The same meteorological disturbance that originated in the Northwest Pacific is called a “typhoon.”
In the South Pacific and Indian Ocean, they are called “tropical cyclones.”
Typhoons, hurricanes and cyclones are the only due to different birthplaces
Typhoons and hurricanes(typhoon vs hurricane) are actually tropical cyclones. According to the definition of the World Meteorological Organization, a tropical cyclone with a central wind force of over 12 and a wind speed of 32.7 meters per second can be called a typhoon or a hurricane.
The difference is that tropical cyclones that occur in the Northwest Pacific and South China Sea are known as typhoons, while those that occur in the Northeast Pacific and Atlantic are called hurricanes.
In addition, typhoons and hurricanes(typhoon vs hurricane) have a little brother, that is, a tropical cyclone that occurs in the Indian Ocean and has a central wind force of over 12 —the “cyclone.” Typhoons, hurricanes and cyclones are essentially the same, but they have different names because of their different places of birth.
In China, according to the classification of the China Meteorological Administration “On the Implementation of the National Standards for Tropical Cyclone Classification”, tropical cyclones are divided into six classes: tropical depression, tropical storm, severe tropical storm, typhoon, strong typhoon and super typhoon.
The central wind of typhoon is generally 11-13, strong typhoon is 13-15, and super typhoon is 15-17.
According to the standards of the National Hurricane Center of the United States, hurricanes are divided into five levels, namely, Category 1, Category 2, Category 3, Category 4, and Category 5 hurricanes.
The corresponding maximum wind speeds are 74-95 mph and 96-110 mph. Hours, 111-130 mph, 131-155 mph, and above 156 mph. This year’s category five hurricane “Irma” has a maximum sustained wind speed of 185 mph.
In fact, according to the increasing standard of about 20 mph for each category, “Irma” can be regarded as a “category 6” hurricane, but in this system The highest is only set to five levels.
Some Chinese readers may convert the wind speed of American hurricanes into several common winds in China, and use this to judge whether it is a US hurricane or a Chinese typhoon that is more powerful.
However, such a simple conversion is not very accurate. The reason is that the National Hurricane Center uses a one-minute average wind speed to assess the intensity of tropical cyclones, while the China Meteorological Administration uses a two-minute average wind speed.
For tropical cyclones of the same intensity, The average two-minute wind speed is usually low, which is why people often misunderstand that hurricanes are stronger than typhoons.(typhoon vs hurricane)
When can they be called hurricanes, typhoons and tropical cyclones?
According to the National Oceanic and Atmospheric Administration, tropical cyclone is a general term used by meteorologists to describe a regularly rotating cloud cluster and thunderstorm weather system.
They are formed in tropical or subtropical waters and have a closed low-level circulation.
“The weakest tropical cyclone is called by tropical depression.
If the area of low pressure intensifies and its maximum sustained wind speed reaches 39 miles per hour (approximately 63 kilometers), the tropical cyclone will become a tropical storm.”
“Once a tropical cyclone reaches a maximum and maximum sustained wind speed of 74 miles per hour (approximately 119 kilometers) or higher, it will be classified as a hurricane, typhoon, or tropical cyclone, depending on where in the world the storm is formed.”
According to the continuous wind speed, hurricanes are classified into categories 1 to 5.#In the Atlantic Ocean, June 1 to November 30 is the hurricane season. During this period, more than 95% of tropical cyclone activities occurred in this area.#In the Northwest Pacific, typhoons are most common from May to October, although typhoons can form throughout the year.#In the South Pacific, November to April is the tropical cyclone season.
At sea, tropical storms can set off huge waves. When these waves reach land, they can flood large areas, including towns.
On land, strong winds can cause a lot of damage. They may blow over houses, blow down trees, and even blow over moving cars.
Scientists say that as the temperature of sea water continues to rise, this may cause the intensity of hurricanes to increase in the future.(typhoon vs hurricane)
The higher the temperature, the more moisture content the atmosphere can hold. The hurricane can therefore bring more rainfall in the affected areas.
However, there are many factors in the formation of hurricanes, and the relationship between climate change and hurricanes is also quite complicated.
Named after a woman was strongly protested
Typhoon vs Hurricane: According to statistics from the World Meteorological Organization, there are more than 40 tropical cyclones in the world every year, most of which are distributed in the Northwest Pacific, Northwest Atlantic, Bay of Bengal and other regions.
Among them, the Northwest Pacific has the most typhoons, with more than a dozen per year. The naming of so many tropical cyclones has been explored for nearly 200 years by mankind, and it has been gradually improved up to now.(typhoon vs hurricane)
The earliest naming of a hurricane in the North Atlantic may date back to 1825. American meteorologist and author Ivan Trihill mentioned in his book “Hurricane” that in the Caribbean, people first named hurricanes using the names of Christian saints, such as the July 1825 hurricane. “Santa Ana” violently attacked Puerto Rico, causing heavy losses in the country.
In 1953, the National Hurricane Center began to use female names with the initials A, B, C, D… to name hurricanes. The first one was named Hurricane Alice in 1953, and the second was named Hurricane Alice in 1953. One is “Barbara.”
As a result, these two little sisters brought unprecedented floods to Mexico and the United States. Subsequently, the movement against naming hurricanes by women rose, and the letters of protest almost flooded the National Hurricane Center. But meteorologists insisted on their opinions and still named hurricanes by female names.
It was not until 1979 that Hurricane Cecil was born, which was the first hurricane named after a male in American history. Since then, the rules for naming hurricanes are still in use today.
Today, the World Meteorological Organization uses six lists of names for hurricanes in the North Atlantic, which circulate every six years; the names on each list are in alphabetical order from A to W (excluding Q, U, X, Y from the 26 letters) , Z) arrangement, 21 per year, and male and female names are used alternately.
For example, “Harvey” and “Elma“, which caused heavy losses to the United States this year, are the names ranked seventh and eighth in the North Atlantic region on the 2017 naming table.
Harvey is a male name, while Irma It’s a female name. Since there are relatively few hurricanes in the North Atlantic, it is almost impossible to use names with W as the initials.(typhoon vs hurricane)
Name the typhoon activity sparked heated debate
In the Northwest Pacific region where typhoons occurred, due to the numerous coastal countries, each country had its own set of typhoon naming methods before the emergence of uniform international naming rules, which caused some confusion.
For example, Japan numbers the sequence of typhoons that enter 180 degrees east longitude and north of the equator; the China Meteorological Administration uses four-code numbers according to the region and time of occurrence.
The first two digits are the year, and the last two are the sequential numbers, such as 9710. Typhoon No. is the tenth typhoon in 1997; while the United States uses traditional names.
In response, the Typhoon Committee under the World Meteorological Organization held a meeting in 1997 and decided to adopt a new unified nomenclature for tropical cyclones generated in the Northwest Pacific and South China Sea starting in 2000.
Typhoon names are provided by 14 countries and regions including China, Japan, the United States, Thailand, South Korea, Hong Kong, China, and Macau, China. Each country (region) proposes 10 names, and a total of 140 names are recycled.
When the tropical cyclone in the Northwest Pacific or South China Sea is determined to reach the intensity of a tropical storm, the name is given according to the naming table and a four-digit number is given at the same time. The first two digits are the year and the last two are the serial number.
What is interesting is that the names on the typhoon list rarely contain the meaning of disaster, and most of them are beautiful words or related to the traditional culture of the country. For example, the “Wukong” tropical storm in 2012, the name comes from China.
In addition, if a typhoon causes heavy property damage and casualties, they will be delisted. For example, last year, the super typhoon Haima caused severe disasters in the Philippines, and was removed from the Typhoon Committee.
China, which was responsible for naming, was asked to submit a new typhoon name to fill the vacancy. A few days ago, the Central Meteorological Observatory launched a name-collecting campaign on Weibo.
Nine names including panda and Pippi shrimp were included in the candidates. Among them, Pippi shrimp is especially popular among netizens.
Such an event may be an opportunity for Chinese netizens to participate in global governance by the typhoon.
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