On the causes of typhoon and its influence on Beilun

In the summer of the Pacific Ocean, where the sun shines directly and the temperature continues to be high, a large amount of water on a large area of the ocean surface evaporates. Evaporating water will gradually repel other gas components in the air, which will increase the humidity of the air sharply. This kind of high humidity air is a prerequisite for the formation of a typhoon!

when external conditions (such as cooling or automatic condensation of water vapor) promote the moisture condensation of high humidity air, the pressure of air will drop sharply, resulting in atmospheric negative pressure relative to the surrounding space, which is the central negative pressure of typhoon. Once this negative pressure is formed, the surrounding air will be replenished immediately. Because the negative pressure often starts from the high altitude with low temperature, it also forms a large air vortex that rotates from bottom to top and around to the center-this is the typhoon eye!

Therefore, the cause of typhoon comes from the negative pressure of air, the negative pressure comes from the condensation of water vapor, and the water vapor comes from the high temperature generated by the continuous direct sunlight in summer! In the end, the sun is the fundamental cause of the typhoon!

The most important evidence for the above hypothesis is that typhoons are all formed on the sea surface, and they are in the hot summer with direct sunlight. Moreover, when typhoons gradually land on the land through the sea surface, they will gradually weaken into low pressure and gradually disappear. This is because the sea surface where typhoons pass is an area where the moisture of high-humidity air condenses, while the humidity of air over the land is much lower, so they cannot form a strong air negative pressure center, so they can only be formed.

The rain brought by the 16th typhoon "Rosa" caused certain economic losses to Beilun, and the towns (streets) such as Chunxiao, Daqi and Chaiqiao were seriously affected. As of 1: this morning, the direct economic losses in agriculture reached 5 million yuan, and the economic losses in transportation, tourism and commerce caused by the typhoon amounted to tens of millions yuan.

under the influence of typhoon Rosa, it began to rain in Beilun at 8: on October 6th. By this morning, the average rainfall in the whole region was 122 mm, with the maximum rainfall of 148.5 mm and the minimum rainfall of 93 mm.. Among them, the average rainfall yesterday was 18.4 mm.

From noon on October 5th, the District Third Prevention Office issued flood discharge instructions for key reservoirs, with the pre-discharge water volume of Xinlu Reservoir and Chengwan Reservoir of 1.6 million cubic meters all day. From noon on the 6th, the tourism authorities informed all the scenic spots in the area to stop selling tickets, and advised tourists to leave the scenic spots and attractions in time. By 4 pm on the 6th, all the scenic spots in the area were closed, and all the scenic spots in the area did not receive any warnings about tourists' risks.

The docks and ports in Beilun District have taken corresponding typhoon prevention measures, and the vehicles in Baifeng Wharf have long queues, but under the guidance of relevant departments, the passing vehicles are orderly. The container terminals of Beilun Port Phase III and Phase IV have all taken typhoon prevention measures, ensured the personnel on duty, and no accidents occurred.