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Ha! Well spotted, Geoff.
Asperitas, the cloud type first identified by members of the Cloud Appreciation Society, finally becomes ‘general knowledge’.
thanks for sharing this.
Hi, Mischa.
I agree with Michael that these are not horseshoe vortex clouds. I don’t know where you took the image, but I wonder if it was near mountains? Another explanation for their formation might be the turbulent region of flow downwind of mountain peaks. This can sometimes form sort of ‘eyebrow’ clouds (not an official term!). These look a bit like what you captured. Whatever their cause, I think you’d find that if you saw these in time-lapse they’d not show the rotating vortex movement associated with a horseshoe vortex cloud.
You’ll spot one eventually, I promise! Great meeting you at the talk in Tiburon.
Gavin
That’s a great painting, Gainor! It’s so nice to see such a specific and special formation depicted in a painting. Congratulations on a fantastic end result.
It rains on the Sun! What a fascinating and beautiful Astronomy Photo of the Day.
Thanks, Laurence, for sharing it.Yes, I’d agree. The right side of the cloud looks to me like a Kelvin-Helmholtz formation (now known officially as fluctus). Do post your painting here when it’s finished!
Hans and Hygge,
This forum issue – both with posting in general and with uploading images in particular – is now fixed. Thanks for letting us know about it!
Harry,
Thanks for this suggestion. It is a nice idea. Our only hesitation is with the economics. You have to get a lot of ties produced to make the economical, and I don’t know if there are going to be quite enough tie-wearing members to want to buy them. Maybe we should do a survey in a newsletter…
Thanks for suggesting it!
Thanks for this suggestion, Eric. We’ll bear it in mind when we next consider additions to the CloudSpotter app!
Yes, the image upload functionality has gone AWOL due to a recent software update. Our developer is onto it, and so we hope this will be working again before too long!
John, thanks for pointing this out. There is a bit of a issue at the moment with showing the user avatars. Our developer knows about this and is working on fixing it. Since you have successfully uploaded your avatar, it will show once the bug has been fixed!
Thellen, it would be great to see the others. They look as if they might be the engravings published in the Philosophical Magazine to illustrated the Essay on the Modifications of Clouds, written by Luke Howard in 1803, when he first proposed the naming system for clouds that we still use today. “Cumulo-stratus” was a term he introduced (along with ones like Cumulus, Cirrus, Stratus, etc) but has now been replaced with Stratocumulus.
The prints look like a nice find.
Here is the link that you needed to include for the wave images:
http://buxin.com/portfolio.php?galerie=Vues%20sur%20MerThese patterns of sea foam do, in some instances, look remarkably like lacunosus clouds. Of course, the reason the foam from waves looks white is the same reason clouds look white. The countless tiny bubbles of water scatter the sunlight in all directions, just as airborne droplets and ice crystals do. The random scattering of light like this appears to us as white, with a the degree of opacity depending on how much scattering is happening.
In the case of lacunosus clouds, I understand that the network of cloud holes, which can look like a honeycomb, results from convection cells forming beneath an inversion. This leads to pockets of sinking air, which is where the holes appear, with rising air between, which results in the fringes of cloud. It is a pattern that emerges from the laws of physics in certain atmospheric conditions. No doubt, there is some equivalent explanation for why the sea-foam bubbles on the turbulent surface of ocean waves results in a similar, if far more fleeting, pattern of a fringes and holes. I guess it is likely to be more to do with water bubbles than the waves themselves.
