Frequency of Occurrence of Peculiar Shapes of Snow Crystals

[摘要] The frequency of occurrence of so-called “peculiar shapes of snow crystals” was observed at the Arctic Canada.When the peculiar crystals were observed, the predominant common crystals were combination of bullets, column and crossed plates. The falling frequency of the peculiar crystals against other common crystals was 3 to 4% in average.The minimum temperature of the ice saturation layer in which the peculiar crystals grew, which was estimated from the sounding curves, was warmer than -35°C in all groups of those crystals.

[学科分类] 大气科学