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PeteCress

Distortion Over Long Distance: Term of Art?

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This is pure idle curiosity.

 

Here

one can see an effect that looks like water flowing over glass - distorting the image beneath as it does.

 

I am assuming this is because the cam is about a half-mile away and almost fully zoomed.

Certainly the effect is not present when it is zoomed out most of the way:

 

Also, on the occasional "good" day, the effect is largely absent.

 

If this is an atmospheric effect, can anybody put a name to it?

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This is pure idle curiosity.

 

Here

one can see an effect that looks like water flowing over glass - distorting the image beneath as it does.

 

I am assuming this is because the cam is about a half-mile away and almost fully zoomed.

Certainly the effect is not present when it is zoomed out most of the way:

 

Also, on the occasional "good" day, the effect is largely absent.

 

If this is an atmospheric effect, can anybody put a name to it?

 

https://en.wikipedia.org/wiki/Mirage

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Certainly the effect is not present when it is zoomed out most of the way:

yes it is, it's just not as noticeable. if you had a high enough resolution camera and you zoomed into the image digitally, you would see it as well.

 

If this is an atmospheric effect, can anybody put a name to it?

http://lmgtfy.com/?q=heat+ripples

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