Birdwatch Note Rating
2023-07-11 16:27:51 UTC - HELPFUL
Rated by Participant: A88D842B1DA5562C164D055CA885224D96A1259023DDA9E428B4B021B9624F46
Participant Details
Original Note:
This video shows an aerodynamic contrail from an Air Canada flight, filmed over Zurich on 19 June 2023: https://twitter.com/TakeThatClouds/status/1673977680780308481?s=20 Aerodynamic contrails form due to the pressure drop above the aircraft wing, which makes water vapour condense. They often exhibit this start-stop behaviour, as seen here: https://www.youtube.com/watch?v=P3-IWfgsEeM
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