Forum Replies Created
-
Posts
-
I did say Cu were my favourite clouds, but did not really have the words to say why. HPL helps – thanks, Alec. Is there a word for the northern hemisphere?
Thanks for the Memory Lane links, Alec, and welcome back. Several names there I bemoan the loss (to this forum) of. Pardon the English. Thank heavens Michael (Mike Lerch) is still with us.
I tried to find Anita recently when The Helm came up, but failed. I also failed to find your own excited post of some exotic rainbow (which was close to going in the record books?).
‘H’
Some great shots from the BBC, Laurence. I particularly liked the Tenby, Pembs, Wales, reflecting in the water. The caption writers had their work cut out but did well.
This one appeared in The Times, UK today
https://us11.campaign-archive.com/?u=3b978e064761964547808bac4&id=aa49821697
I loved Claude Monet’s thoughts in today’s Cloud-a-Day. It reminds me of GWW who always wanted a horizon or something to better judge the clouds. (Granny Weather Witch, ex UK Met Office).
Oscar Wilde was quoted on BBC Radio 3 this evening as saying ‘We are all in the gutter but some of us are looking at the stars’. It would be nice to think that in 21C he might have said clouds not stars.
Hans, I had suggested to Alec he is probably a lifetime member of CAS and indeed he said he was able to log in with his old password (unlike his experience with the old forum). But for the moment he chooses not to restart on the forum; he will be able to read your post should he wish to, of course, so I do not need to e-mail him again.
‘H’
Hans, Alec Jones’ reply:
I have had a look at the link you sent and on first glance the arc that Hans posted appears to me to be a segment of a supralateral arc. It’s unusual to get one as colourful as that but not unknown. It could be an infralateral as he suggests but for the fact that the sun appears to be on the right hand side of the image and the arc is “leaning” towards the right. If it was an infralateral it would, generally speaking, be leftwards leaning. It’s difficult to make a precise determination without seeing a wider angle view especially with the sun in the shot and any other halos that were present at the time. Both the supralateral and infralateral change shape depending upon the elevation of the sun. It could be that what you observed was a small fragment of both arcs where they touch and overlap. Please see the simulation in the following link for a better understanding of how they relate to one another at a given solar elevation,
I agree, Hans, that colon is very difficult to see – I missed it too on checking, giving me momentary concern I had not put quotes around Alec Jones’ words.
I have e-mailed this topic to Alec Jones. Should he wish to reply to you, either he might post to the topic, or I have offered to cut and paste an e-mail to me.
Fingers crossed.
I take heed of Hans’ warning – up/down or left/right can be tricky. This intrigued me because the colours of the trails are slightly different. George, you must have quite a lens there.
I struck lucky and was able to contact Alec who kindly replied – his contrail blog has gone. See also the Halo vault topic.
Hello (again?) Daniel, yes really enjoyable clouds; thank you. I notice you say ‘sky’ as well and I agree a touch of blue enhances the picture, in spite of the CAS’ manifesto.
VOS
A letter in the i newspaper, UK, today from Roy Martin, Southampton, lauded the work (now steeply declined if not gone) of the Voluntary Observing Ships (q.v.) providing twice daily meteorological reports including cloud base height and cloud cover and types.
http://yourshot.nationalgeographic.com/photos/11296763/
He set the alarm for 3am to spot these clouds.
