Cloud or Contrail?


1stEverPentax

Link Posted 19/01/2022 - 21:00
A handful of images of a strange pattern in the sky yesterday over mid Cheshire looking west.

Looked like scar tissue across the sky.

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JohnX

Link Posted 19/01/2022 - 21:22
Cirrus cloud, aka feather cloud. Nice.
Last Edited by JohnX on 19/01/2022 - 21:23

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Lubbyman

Link Posted 20/01/2022 - 10:10
Both. Contrails are a known source of cirrus clouds. There is even a formal name for it - contrail cirrus (someone wasn't being very creative when they thought of that one!). Contrail cirrus has an impact on climate (and thus climate change) because it affects the balance between incoming radiation from the sun and outgoing radiation from the earth's surface and atmosphere. So even hydrogen-burning aircraft would not be climate-neutral if they flew at altitudes where contrails could form.

Nice photos of an interesting phenomenom .

Steve
PS: I used to move in circles where some people were thinking about things like this.

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1stEverPentax

Link Posted 20/01/2022 - 10:48
Thanks to both of you...a particularly detailed and interesting comment from Steve.

Glad I noticed it because 5-10 minutes later it wasn't recognisable as such.

Often pays to 'Look Up'.

regards

Karlo

MikeInDevon

Link Posted 21/01/2022 - 09:41
That's a classic case of a 'cirrus fall streak', caused by the ice crystals falling down creating a hole or as in this case a line in the cloud.

Cheers
Mike

cardiffgareth

Link Posted 21/01/2022 - 13:40
No idea, but it's stunning
Gareth
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