The science of persistence

HappyMonday

Moderator
Ayup...

Could somebody help me out with a link to or description of a succinct explanation of the science behind the persistence of a contrail?

I'm writing something on the matter, and can't find one.

cheers.
 

Mick West

Administrator
Staff member
A contrail will persist if the air is ice supersaturated.

or

A contrail will persist if the air temperature is below the frost point.


Exactly how much detail do you need? The science can get quite complicated. I like to try to keep it simple.
 

Mick West

Administrator
Staff member
Here's a classic explanation of why clouds (and contrails) form:



It does not delve into why they persist, but might give you some ideas :)
 
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