Will the typhoon bring Covid-19 to China? What is the basis?

There are many typhoons in summer. Will Covid-19 from other countries be brought to China? Why? Up to now, the cumulative number of confirmed cases of novel coronavirus in the United States alone has exceeded 76,, and the death toll has reached more than 4,. What is even more frightening is that there is no sign of slowing down for the time being, whether it is new or death. Therefore, the number of people infected by this virus and the death situation still need to wait for time to give an answer.

The time has come to the end of April 22, and I will meet you soon in the long-lost summer. A few months ago, we hoped that we could take off our masks completely and breathe fresh air freely this summer. However, a few months later, although novel coronavirus in China was effectively controlled, the virus caused a large-scale outbreak all over the world, and imported cases from abroad became the main new confirmed channel. Summer is coming, which makes many people worry about whether it is possible for novel coronavirus, which is aggressive abroad, to be brought to China through a typhoon.

first of all, we need to understand that typhoons do not only appear in summer, but when we are in summer, the probability of encountering typhoons in coastal cities will be greatly increased. This is related to the formation conditions of typhoons. For example, the water temperature on the sea surface needs to reach above 26.6℃. Of course, if the water temperature is the only condition, it is impossible to form a typhoon, and at the same time, it is necessary to meet the tropical low pressure disturbance, and the formation position must be kept at five from the equator. Latitude? Above all, the vertical shear of the whole troposphere wind that can effectively concentrate the latent heat released by convection in a limited space is small.

As we all know, typhoons are actually the same as hurricanes. They are all tropical cyclones, but they have different names because of their different places. However, in China, tropical cyclones located in the northwest Pacific Ocean and the South China Sea are generally called typhoons, and the wind force meets the level of 12 or above. August is the month with the highest frequency of typhoons every year, followed by July and September. Of course, because scientists have not fully grasped the conditions for the formation of typhoons at present, the conditions listed above are the characteristics of all typhoons, but they do not mean that they only need to meet these four points, which is equivalent to necessary and insufficient conditions.

Some people worry that the typhoon will bring novel coronavirus to our country, but they are really worried. Typhoons are far away from cities and crowded places, and typhoons that can have an impact in China can only be formed in the South China Sea or the Pacific Northwest. At present, the distance between foreign countries with particularly serious epidemic situation and these sea areas is far away, and, as far as its formation conditions are concerned, it is impossible to carry the virus spread from person to person. Moreover, novel coronavirus can't be without a host for a long time, and the time it takes for a typhoon to form and move is enough to kill the virus.

Many people always judge typhoons as disasters unilaterally, but in fact, typhoons do bring economic losses and even loss of life to the affected areas. However, typhoons also bring us a lot of fresh water, and those places with long sunshine hours also need typhoons to dissipate excessive heat, and the fishing output will also be affected by typhoons, because typhoons can make baits originally located on the deep seabed be rolled up, which will make more moons gather together for food.

Perhaps many people don't know that the rainfall brought by typhoons can often occupy more than a quarter of the areas hit by typhoons, and typhoons have indeed brought great influence on the heat of the climate in these areas. If typhoons suddenly stop blowing in the world, those tropical and cold regions will become more extreme, while the so-called temperate regions will cease to exist, which will endanger the survival and reproduction of all animals and plants.