Birdwatch Note Rating
2024-11-05 09:45:36 UTC - HELPFUL
Rated by Participant: 7DD4E2DCE441F01EC4FBA4E6954AD46203022BDE2425B124FBC59B5BD3BCE361
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