Cloud or Contrail?
Posted 19/01/2022 - 21:22 - Helpful Comment
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Cirrus cloud, aka feather cloud. Nice.
Posted 20/01/2022 - 10:10 - Helpful Comment
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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.
Nice photos of an interesting phenomenom .
Steve
PS: I used to move in circles where some people were thinking about things like this.
Posted 20/01/2022 - 10:48
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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
Glad I noticed it because 5-10 minutes later it wasn't recognisable as such.
Often pays to 'Look Up'.
regards
Karlo
Posted 21/01/2022 - 09:41
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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
Cheers
Mike
Posted 21/01/2022 - 13:40
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No idea, but it's stunning
Gareth Williams ARPS
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My outfit: K1ii - Pentax D FA 24-70mm f2.8 - Pentax DA* 300mm f4 - Pentax modified DA* 60-250mm f4 - Irix 15mm Firefly - Pentax FA 35mm - FA 50mm f1.4 - Tamron SP 90mm macro - Pentax AF 540 FGZ II
Welsh Photographer
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My PPG
Foundation NFT
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1537 posts
15 years
Northwich,
Cheshire
Looked like scar tissue across the sky.
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