In the past two days, the impact of wind and rain brought by Typhoon "Capricorn" has aroused the attention of many netizens across the country. Some typhoon-related trivia is also widely disseminated on the Internet, such as: the typhoon landing site is the most affected, the typhoon eye stroke is the greatest, etc., is this really the case?
The impact of wind and rain is related to the typhoon structure and may not be the largest landfall point
In fact, the landfall point of a typhoon is not necessarily related to the intensity of the wind and rain or the extent of the damage. The impact of wind and rain on the landfall of a typhoon is mainly related to the structural changes before and after landfall, the coordination of weather systems, and the topography of the landfall site. Generally speaking, a structurally intact typhoon will cause significant precipitation over the entire coverage area, and when the typhoon structure is asymmetrical, the precipitation will be concentrated on one side, not necessarily at the largest landfall point.
The lifting of a typhoon warning signal does not mean that the risk is eliminated
In addition, the lifting of the typhoon warning signal does not mean that the risk is eliminated. As the intensity of the typhoon weakens, the typhoon warning signal will be lifted, but it does not mean that the impact of the typhoon will disappear, and the precipitation and strong winds brought by it may also cause floods, mudslides, landslides, urban and rural floods and other disasters, which need to be taken care of.
Biggest stroke in the eye of a typhoon? No, there is basically no wind in the eye of the typhoon
The wind is the biggest in the eye of a typhoon, is that true? On the contrary, there is basically no wind in the eye of the typhoon. The eye of the typhoon is the center of the typhoon. The internal wind of the typhoon blows counterclockwise, and the central air rotates. The centrifugal force that occurs during rotation and the wind force blowing towards the center are balanced and canceled out, resulting in a windless phenomenon within a radius of tens of kilometers from the center.
Tip: Low air pressure in the eye of a typhoon may cause tinnitus and dizziness in the human body
After the passage of "Capricorn", many members of the public experienced feelings of nausea, dizziness and tinnitus, and experts explained that, in fact, the closer to the center of the typhoon, the lower the air pressure will be. The central pressure of the Capricorn is about 930 hPa, and the normal standard atmospheric pressure is 1015 hPa. In the area where the eye of the typhoon passes, the atmospheric pressure will decrease abnormally, so the human body will have some corresponding reactions, such as tinnitus, dizziness, nausea, etc. After the eye of the typhoon passes, the air pressure will return to normal.
Source: CCTV News