Story of Snow - Mark's Blog - Latest Comments https://www.storyofsnow.com/blog6.php?disp=comments en-US http://backend.userland.com/rss 60 jnelson [Member] in response to: Story of Snow - Simplified Chinese edition Wed, 23 Nov 2016 02:03:55 +0000 [Member] c75@https://www.storyofsnow.com/ <p>Hi Mark, </p> <p>If you ever get an image of the Russian and Korean editions, please post!</p> <p> It is nice to see these other languages and have a reminder that the book is spreading&#8230; </p> <p>Jon</p> Hi Mark,

If you ever get an image of the Russian and Korean editions, please post!

It is nice to see these other languages and have a reminder that the book is spreading…

Jon

]]> https://www.storyofsnow.com/blog6.php/story-of-snow-simplified-chinese-edition#c75 Maggie Bresz [Visitor] in response to: First Snow Crystal Photos of 2010 / 11 Sat, 12 Mar 2011 16:11:10 +0000 Maggie Bresz [Visitor] c32@https://www.storyofsnow.com/ <p>Your pictures are wonderful,Mark.It&#8217;s a delight to see them.</p> Your pictures are wonderful,Mark.It’s a delight to see them.

]]> https://www.storyofsnow.com/blog6.php/first-snow-crystal-photos-of-2010-11#c32 mark [Member] in response to: Groundhog Day Blizzard - 2011 Fri, 04 Feb 2011 02:12:22 +0000 [Member] c29@https://www.storyofsnow.com/ <p>Thanks, Jon - that top one does look like a turtle, lol&#8230; I didn&#8217;t see any columns or needles - just lots of broken and mangled bits, and a few small plates and sectored plates&#8230;</p> <p>Mark</p> Thanks, Jon - that top one does look like a turtle, lol… I didn’t see any columns or needles - just lots of broken and mangled bits, and a few small plates and sectored plates…

Mark

]]> https://www.storyofsnow.com/blog6.php/groundhog-day-blizzard-2011#c29 jnelson [Member] in response to: Groundhog Day Blizzard - 2011 Thu, 03 Feb 2011 15:43:53 +0000 [Member] c28@https://www.storyofsnow.com/ <p>That first one looks like at turtle, and the other two do have some interesting interior lines. Nice selection! </p> <p>Did you see any columns or needles? </p> <p>Jon <br /></p> That first one looks like at turtle, and the other two do have some interesting interior lines. Nice selection!

Did you see any columns or needles?

Jon

]]> https://www.storyofsnow.com/blog6.php/groundhog-day-blizzard-2011#c28 mark [Member] in response to: More Snowflake Photographs with Classifications Sat, 20 Feb 2010 22:55:38 +0000 [Member] c21@https://www.storyofsnow.com/ <p>Your interpretations of how to classify the snow crystals make a lot of sense, Jon. And thanks for the kind words about the first image in the post –the snow can fall in beautiful crystals when conditions are right, but more often than not I see rime cover and fluffy white, opaque crystals. The clean and translucent ones are a rarity.</p> <p>- Mark</p> Your interpretations of how to classify the snow crystals make a lot of sense, Jon. And thanks for the kind words about the first image in the post –the snow can fall in beautiful crystals when conditions are right, but more often than not I see rime cover and fluffy white, opaque crystals. The clean and translucent ones are a rarity.

- Mark

]]> https://www.storyofsnow.com/blog6.php/more-snowflake-photographs-with-classifications#c21 jnelson [Member] in response to: More Snowflake Photographs with Classifications Fri, 19 Feb 2010 00:02:30 +0000 [Member] c20@https://www.storyofsnow.com/ <p>I have a hard time taking my eyes off the first crystal - such a clean and sharp image! </p> <p>So, I came up with a few different ones than you. One difficulty is in choosing the underlying pattern. For example, is the underlying pattern in #1 dendritic or stellar? You thought the former, I thought the latter.And then there is a grey zone between ordinary dendrite and fern-like. Another difficulty is distinguishing sectorlike from plate extension. </p> <p>As I read things, a dendrite should have some significant sidebranches, whereas a stellar should have no major sidebranch.</p> <p>About sectors, I&#8217;ve never seen anyone really clarify the meaning, so I&#8217;ve taken it to mean segments that have almost a pie-slice shape. I didn&#8217;t see this in #1, so I voted for P2a, stellar with plates at the end. It is true that the plates have some small sidebranches at the ends, but they seem like small additions at the end of growth so I ignored them. (Stunning though!)</p> <p>On #2, I also went with plates at the end, calling it P2c - dendrite with plate ends. </p> <p>On 3,4,5&amp;6, I got the same as you: R1d, P4a, P1e, and P1e.</p> <p>#7 seemed close to fern-like, so I voted for P1f. But it is a tough call. </p> <p>#8 is a toss. I figured it could be either R2b or R1d. I leaned towards the former though, and you picked the latter. </p> <p>#9 &amp; 10 I got the same as you: R2b. </p> <p>Interesting view about the classification with all the rime. They must explain the choices in their 1966 article. I have the article somewhere in my collection, but can&#8217;t find it. </p> <p>I suppose though that they wanted the classification to give useful knowledge about the cloud conditions. Rime is a very useful observation because it tells us that the cloud had a lot of liquid water (i.e., many drops). The underlying shape is important too, but harder to interpret, even now. Presently, we don&#8217;t have enough knowledge to be able to infer the humidity and temperature except in special cases, like the fern-like form. For example, broad-branches can form at two temperature zones. </p> <p>Jon </p> <p><br /></p> I have a hard time taking my eyes off the first crystal - such a clean and sharp image!

So, I came up with a few different ones than you. One difficulty is in choosing the underlying pattern. For example, is the underlying pattern in #1 dendritic or stellar? You thought the former, I thought the latter.And then there is a grey zone between ordinary dendrite and fern-like. Another difficulty is distinguishing sectorlike from plate extension.

As I read things, a dendrite should have some significant sidebranches, whereas a stellar should have no major sidebranch.

About sectors, I’ve never seen anyone really clarify the meaning, so I’ve taken it to mean segments that have almost a pie-slice shape. I didn’t see this in #1, so I voted for P2a, stellar with plates at the end. It is true that the plates have some small sidebranches at the ends, but they seem like small additions at the end of growth so I ignored them. (Stunning though!)

On #2, I also went with plates at the end, calling it P2c - dendrite with plate ends.

On 3,4,5&6, I got the same as you: R1d, P4a, P1e, and P1e.

#7 seemed close to fern-like, so I voted for P1f. But it is a tough call.

#8 is a toss. I figured it could be either R2b or R1d. I leaned towards the former though, and you picked the latter.

#9 & 10 I got the same as you: R2b.

Interesting view about the classification with all the rime. They must explain the choices in their 1966 article. I have the article somewhere in my collection, but can’t find it.

I suppose though that they wanted the classification to give useful knowledge about the cloud conditions. Rime is a very useful observation because it tells us that the cloud had a lot of liquid water (i.e., many drops). The underlying shape is important too, but harder to interpret, even now. Presently, we don’t have enough knowledge to be able to infer the humidity and temperature except in special cases, like the fern-like form. For example, broad-branches can form at two temperature zones.

Jon


]]> https://www.storyofsnow.com/blog6.php/more-snowflake-photographs-with-classifications#c20 mark [Member] in response to: Three From This Evening Thu, 18 Feb 2010 02:30:11 +0000 [Member] c19@https://www.storyofsnow.com/ <p>Thanks, Jon - I have more to post and will see if I can Classify them&#8230;</p> <p>- Mark</p> Thanks, Jon - I have more to post and will see if I can Classify them…

- Mark

]]> https://www.storyofsnow.com/blog6.php/three-from-this-evening#c19 jnelson [Member] in response to: Three From This Evening Wed, 17 Feb 2010 04:20:39 +0000 [Member] c18@https://www.storyofsnow.com/ <p>That first one is hard to classify. I suppose it fits best into P2g - plate with dendrite extensions. Very pretty and very symmetric. </p> <p>The second one - a nice rimed stellar R1d, I like it. I&#8217;ve never noticed how a little rime can make a crystal look even nicer. It must be the skills of the photographer!</p> <p>And the third one is another R1d - a rimed stellar. It is quite different from the second one though - so it seems like we need some intermediate classes.</p> <p>Jon <br /> <br /></p> That first one is hard to classify. I suppose it fits best into P2g - plate with dendrite extensions. Very pretty and very symmetric.

The second one - a nice rimed stellar R1d, I like it. I’ve never noticed how a little rime can make a crystal look even nicer. It must be the skills of the photographer!

And the third one is another R1d - a rimed stellar. It is quite different from the second one though - so it seems like we need some intermediate classes.

Jon

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