“Unidentified aircraft”?Guangzhou Meteorological Bureau: it is probably an airplane track cloud

2022-05-21 0 By

Article/Yangcheng Evening News all media reporter Liang Yitao Guangzhou sky often “UFO”?Under a clear weather background, many netizens in Guangzhou and its surrounding areas have taken pictures of flying objects “dragging” white or pale yellow clouds flying in the sky.Guangzhou emergency Warning Information Release Center official weibo reposted sina Weibo user “@xiaoyingying Guangzhou” photos of the recent “unknown aircraft” over Guangzhou,Meteorological department analysis for the aircraft track cloud Guangzhou Emergency Early Warning Information Release Center official weibo reprinted Sina Weibo user “@Li-yongying” photo above Guangzhou in the recent “unknown aircraft”,Meteorological department analysis for the aircraft track cloud Sina Weibo user “@Collect moonlight Wu students” in Guangzhou Emergency warning Information Release center official weibo message photo of the recent “unknown aircraft” over Guangzhou,Meteorological department analysis for the aircraft track cloud Sina Weibo user “@Liufeng” in Guangzhou Emergency warning Information Release center official weibo message photo of the recent “unknown aircraft” over Guangzhou,As netizens uploaded photos of the scene to social media, “# Netizen photographed an unidentified aircraft in the Skies over Guangzhou” became a popular search on Sina Weibo.On April 5, the Guangzhou meteorological Bureau responded to netizens by saying that the scene captured by netizens is likely to be the scene where the plane left a track cloud.According to the Guangzhou Meteorological Bureau, jet engines exhaust a large amount of hot and humid air during flight, which, if combined with dry air at high altitudes, may produce track clouds.Track clouds are ice-crystal clouds that typically form at temperatures of -50 ° C or even colder at altitudes of more than 9km.Jet exhausts add water vapor to the atmosphere at cold altitudes, where it cools to saturation and forms ice crystal clouds.As a busy airspace, the skies around Guangzhou and the Pearl River Delta often have airplanes flying over them, but not always have the formation of track clouds, because the formation of track clouds requires the coordination of high altitude temperature, humidity, air saturation and other factors.In most cases, track clouds will soon combine with dry and cold air in the upper air and sublimate and disappear.There are also some track clouds that exist for a long time because the upper air is near saturation and often expand into a wide band of clouds.According to the analysis of photos and videos taken by the guangzhou Meteorological Bureau, the track clouds taken by the citizens were short in length and maintained in the sky for a short time, without forming a band cloud that remained for a long time, indicating that the weather in Guangzhou was dry recently and the humidity in the upper atmosphere was not high.The reporter found that if you search “# netizen photographed unidentified aircraft in Guangzhou” on Sina Weibo, you will see many netizens uploading pictures claiming that they filmed flying objects “dragging” white or pale yellow clouds flying in the sky above Guangzhou.When someone zoomed in on the picture, they saw a plane flying at one end of the cloud.”Think of it as a passing meteor and make a wish.”Some netizens learned the “truth” and caused the phenomenon of the aircraft is not “unknown” said.Source | guangzhou yangcheng evening news · sent coordinating editor | wei-dong deng statement: this article, all peer originator if there are sources of errors or infringe upon the lawful rights and interests of you, you can through the E-mail contact us, we will be handled in a timely manner.Email address: jpbl@jp.jiupainews.com