Archives for: "December 2009"
December 28th, 2009
Back when I lived in Boulder CO, I worked with Charles Knight on developing a new way to grow ice crystals for experimental study. I knew that the problem with most methods was twofold: there were too many crystals too close together to be able to learn…
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Posted in Snow Science, Announcements, Ice Science
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December 26th, 2009
A hole in the ground is a good place to look for large hoar crystals. Next to some rice paddies, just uphill from the tubs, lies a few small holes in the cement roadway. From eye level, the white tinge of hoar frost just inside the lip is easily…
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December 26th, 2009
I often see curious ice patterns on the surface of frozen water. On Christmas morning, I saw this strange pattern on one of the farmer's outdoor bathtubs. The foreground region looks a little like terraced rice fields on both sides of a mountain pass,…
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Posted in Ice Science
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December 26th, 2009
On my morning icespotting trip the other day (12/23), I caught a glimpse of an unusual sight - a sun pillar. I thought I saw one once last winter, but this one was unmistakable. It seemed more striking even than the one in Robert Greenler's book…
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Posted in Announcements, Ice Science, Atmospheric optics, Cloud science
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December 26th, 2009
Our first snowfall this season came overnight with a howling westerly, but left just a light dusting. Only certain surfaces with a wide view of the sky were cool enough to preserve the snow. The only place in our yard was the roof of our car, which I've…
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December 18th, 2009
The farmer's bathtub finally froze over. The surface had an interesting freezing pattern, but I've photographed similar ones many times before. So I picked up a rock, broke the surface, put a chunk between two crossed polaroid sheets and shot a picture.…
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Posted in Snow Science, Ice Science
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December 15th, 2009
Here in this neighborhood of Japan, we finally had our first good frost day. By frost, I mean any ice that forms from vapor that condenses (wet or dry) onto a surface. We rarely get snow, typically just one or two short-lived, wet snowfalls over winter,…
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Posted in Snow Science, Photos
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