How to classify snow crystals

February 14th, 2010
According to Edward LaChapelle’s Field Guide to Snow Crystals (1969), the most widely used classification for falling ice is a system of 10 types from the International Commission on Snow and Ice, which came out in 1951. A few years later, ice… more »

Another Snow Crystal

February 14th, 2010
Here's another snow crystal from  last week's shoot - As always, click the image for a larger view. - Mark more »

Two Snow Crystals and a Review

February 10th, 2010
Yesterday' snow fizzled by midnight, and the show smiled upon us here in Michigan this morning. On the news I hear about the blizzard in the mid Atlantic, but up here in the snow belt all is calm. Here's another snow crystal from yesterday's storm -… more »

It Snowed Today

February 9th, 2010
It snowed today. It's snowing now. At first the snow was hard and driving, wet and clumping. Now the snow is dry and dusty, tiny and incomplete. But between those things it breifly fell, small and well formed, tiny dots just a millimeter or so across.… more »

I am a giant snow crystal, imperfect thing of habit, bouncing along life's gusts,...

February 6th, 2010
Some reviewers of The Story of Snow mistakenly call me the main author. I don't know why they make that mistake - Mark's role as the main author is clearly implied by his copyright  on the dedications page and elsewhere. My role was just to check the… more »

Ripples

February 5th, 2010
Ripples in still water When there is no pebble tossed Nor wind to blow - Grateful Dead “Ripple” I don’t know where to start on this one. For some time I’ve been seeing concentric circular patterns on car windshields and car bodies – bands of white… more »

Mystery of Whirlpool Hollows

February 3rd, 2010
I’ve seen this whirlpool pattern on two mornings on the same plastic side-mirrors of the same car. The hollow columnar crystals are oriented lengthwise along concentric circles, which strongly suggests that an underlying film froze with the same… more »

BEDFISH: Revising an old Idea for Classifying Surface Ice Forms

January 31st, 2010
It often seems like people refer to any kind of ice stuck on something as frost. If one looks in books or the Internet, one can usually find a specific term for the many different and interesting ice formations, but a term used by one group of people… more »

Like Seashells at a Seashore

January 30th, 2010
This morning it just barely dipped below freezing, the first time in several days. Off I went to the usual black cars. And once again the frost to me looked like things I’d seen before. I decided to take a few pictures anyway, and once again I was… more »

Blue Ribbon From BCCB

January 28th, 2010
The Story of Snow has been awarded a 2009 Blue Ribbon from the Bulletin of the Center for Children's Books! You can see all the details here: http://bccb.lis.illinois.edu/blue09.html - Mark more »