Author Topic: Vapor trail casting shadow.  (Read 1541 times)

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Offline dupreezd

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Vapor trail casting shadow.
« on: March 21, 2018, 09:32:52 AM »
Early this morning with a low sun angle resulting in a vapor trail casting a shadow on the cloud above.

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Offline waiukuweather

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Re: Vapor trail casting shadow.
« Reply #1 on: March 21, 2018, 02:48:50 PM »
I dont think that is a shadow
the sun would need to below the horizon for that to occur
(as it does not match very well either )
instead I think they are so close together, the vapour trail has caused evaporation of the cirrus cloud above it (possibly due to a slight warming of the air from the jet exhaust)

Offline miraculon

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Re: Vapor trail casting shadow.
« Reply #2 on: March 21, 2018, 04:04:22 PM »
This article might be of interest: https://journals.ametsoc.org/doi/pdf/10.1175/2009BAMS2905.1

Greg H.


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Offline dupreezd

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Re: Vapor trail casting shadow.
« Reply #3 on: March 21, 2018, 07:46:04 PM »
Thanks guys, very interesting info in that article.
Never knew a prop plane can have a vapor trail.
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Offline CW2274

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Re: Vapor trail casting shadow.
« Reply #4 on: March 21, 2018, 07:51:09 PM »

Offline miraculon

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Re: Vapor trail casting shadow.
« Reply #5 on: March 22, 2018, 08:20:26 AM »
Thanks guys, very interesting info in that article.
Never knew a prop plane can have a vapor trail.

I have seen other photos of B-17s during WWII showing vapor trails.

Greg H.


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Offline DaleReid

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Re: Vapor trail casting shadow.
« Reply #6 on: March 22, 2018, 09:44:36 AM »
This is a huge mural at the Smithsonian.  Very breathtaking to see in person.  Ferris painted it.

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Offline Randall Kayfes

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Re: Vapor trail casting shadow.
« Reply #7 on: March 23, 2018, 12:22:35 PM »
Greetings, fantastic post and supporting articles - thank you all!

Randall



 

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