Birdwatch Note Rating
2024-11-08 19:48:25 UTC - HELPFUL
Rated by Participant: D25A1003EAB2F91B5CC771011008B31837D720915AF17DB77C6E624DB530950D
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Original Note:
The threshold for contrail formation depends on a combination of pressure, temperature and humidity, these vary rapidly with an increase in altitude. It is normal to seee different effects even over the minimum vertical seperation of 1000ft. https://windy.com (contrail predictor) https://scied.ucar.edu/image/multiple-contrails
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