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Showing content with the highest reputation on 12/24/23 in all areas

  1. This is really intense climbing. I'm grateful that you could be composed enough to get these amazing pics. And thanks for writing up the account here. About the "atmospheric displays": What Olyclimber wonders about: it is not a sundog. Sundogs are white spots either side of the sun, slightly higher in elevation when the sun is high, and sometimes a bit reddish at the outer edge. Those colors are most likely part of a "circumhorizontal arc", a very beautiful display. Happens when the ice crystals are quite small and hang in the air perfectly stable, like a hexagonal plate on a table. I can't tell from the pic, but I'm guessing that the arc should be about 50 degrees below the sun. The above two pics by Priti: The top one is also a circumhorizontal arc. One of my favorite ice displays. The bottom pic is really amazing though. The oval around the sun is a "circumscribed halo". Rare to see it so distinct. The line arcing through the sun is the parahelic arc. It is due to reflections off the sides of ice crystals. Also rare to see it extended so much. Perhaps it went clear around the horizon to make one large circle? (I've seen it do that once.) And then there is that strange bottom "hump" below the sun. I've never seen it myself, but it appears to be an excellent case of a Parry arc. All of these are due to small ice crystals. So glad that you noticed it and took pics. Keep your eyes peeled and get more pics like that if you can.
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