Birdwatch Note Rating
2024-11-05 13:31:27 UTC - HELPFUL
Rated by Participant: 6D9CDE37B4691EDCEA57BF9D99173C7389F9AF9CB8784A3555BAD14E458B814B
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