Birdwatch Note Rating
2023-07-10 21:09:55 UTC - HELPFUL
Rated by Participant: DB4695AF46EEFA32A7984C0E058DE6F05C25647DD24CC9C0A80E0C3D42C02772
Participant Details
Original Note:
The video shows persistent spreading contrails, which form when aircraft fly through air that is ice-supersaturated - that is, the humidity is too high for ice crystals formed from the aircraft exhaust to sublimate. In these conditions, contrails can last for hours. https://scool.larc.nasa.gov/pdf/Contrail_ID_Chart_English_2013_v18_copy.pdf
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