Archives for: January 2012
Slush Fingering and Other Pond Patterns
January 19th, 2012Slush Fingering and Other Pond PatternsHere in the Pacific Northwest, we just had our first snowfalls of the season. On the weekend, we had 1 – 2 inches. This was followed on Wednesday by what the Seattle Times newspaper was calling a “megastorm”. Bu… more »
Snow on a Freshly Frozen Pond
January 15th, 2012Back when I was doing post-doctoral work in Boulder, Colorado, Charlie Knight, the head of my lab, introduced me to strange ice phenomena. If the weather had been sub-zero for a few days and we got some snow, he would drive us out to some shallow ponds t… more »
Seeing Things in the Frost
January 15th, 2012In looking at the Cloud Appreciation Society's website recently, in which viewers post images of clouds that look like various objects, I started wondering if we could do that for frost patterns. more »
Fun with windshield ice
January 11th, 2012In my last post, I pointed out that you can determine the crystal orientation in a film of ice by looking at hoar-frost that sprouts from its surface. Here's another way, but it only works if the ice is on glass. For example, here's ice on my windshield,… more »
Choppy waves
January 11th, 2012I thought this hoar frost pattern looked like rough seas. I see choppy, cusp-like waves down there. [pic 1 large view]Not having any pictures of rough seas, I hopped in our bathtub and kicked my legs around to make waves. Perhaps you can see a litt… more »
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