Birdwatch Note Rating
2024-11-29 00:28:20 UTC - HELPFUL
Rated by Participant: 1299732836B66B15983E965B70C1A0040FA1CF33416EB1C9A1F62CBA431E9116
Participant Details
Original Note:
37K feet is the troposphere, SAI would happen at ~65K feet. Planes within close proximity, like the video, would have to be seperated by at least 1000ft, usually 2000ft, which is enough to cross the contrail formation threshold. Therefore the video shows contrails. https://skybrary.aero/articles/separation-standards https://scied.ucar.edu/image/multiple-contrails
All Note Details