Birdwatch Note Rating
2024-11-05 12:26:09 UTC - NOT_HELPFUL
Rated by Participant: 5D8DA334934FE74AD4031466BD1A31984E7812E17020EE9B5950D6D7366CDF9C
Participant Details
Original Note:
In supersaturated air, ice crystals in an aircraft’s contrail can't sublimate back into vapour. Instead, they grow as excess moisture condenses onto them, causing the contrail to persist and even expand, forming a visible trail that lasts much longer than in drier air. https://www.metlink.org/fieldwork-resource/contrails/ https://www.globe.gov/web/s-cool/home/observation-and-reporting/contrails/persistent-contrails https://scied.ucar.edu/image/persistent-spreading-contrails
All Note Details