Seagull-type snow crystals observed in Hokkaido
نویسندگان
چکیده
雪結晶は，六回対称性を持った単結晶がよく知られているが，六回対称性を持たないものもあり，鴎状結晶はその一つである．この結晶の観察は，ほとんどが北極圏のカナダ北部など寒冷地に限られているが，2007年3月に上富良野町吹上温泉で，2020年12月に稚内市内で観察された．このうち2020年12月の稚内での観察は山岳地以外の国内では非常に珍しく，上空の強い寒気により地上で－9.6℃，雲頂と考えられる高度2106 mで－27.7℃という気象環境になっており，対流圏下層で成長したと考えられる．
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ژورنال
عنوان ژورنال: Journal of the Japanese Society of Snow and Ice
سال: 2022
ISSN: ['0373-1006', '1883-6267']
DOI: https://doi.org/10.5331/seppyo.84.1_3