Beijing News Express (reporter Deng Qi) Many citizens found that today there were clouds like circles in the Sky of Beijing, and the Beijing Meteorological Bureau said that this was a trail cloud.
Image source: Beijing Meteorological Bureau's official Weibo
According to the China Weather Network, the track cloud refers to the aircraft or aircraft flying from a high altitude, and the exhaust gas emitted by the aircraft contains a large amount of water vapor generated by combustion, and the water vapor can form a trail cloud when it condenses. In addition, when the aircraft flies, the fuselage causes air pressure disturbances, and the aircraft wingtip causes small vortexes, which can also cause the aircraft to compress and expand through the area, thereby causing temperature changes and water vapor condensation, forming a track cloud.
The meteorological department said that it is currently at the turn of the seasons, and the clouds in the sky are also colorful. It reminds that the wind in Beijing has increased in the afternoon this afternoon, and it is necessary to pay attention to windproof when going out in the afternoon.
Beijing News reporter Deng Qi Editor Lu Yinling
Proofread by Lu Aiying