…In surface meteorological observations, when ice crystals float and horizontal visibility is 1 km or more, it is called ice prisms, and is also called diamond dust because it sparkles in the sun. When supercooled water droplets are mixed with strong ice prisms, horizontal visibility is 1 km or less, and in this case it is called ice fog. Ice fog is often seen in polar regions and inside continents where the winter air layer is stable and the surface inversion layer develops, causing extremely low surface temperatures. … *Some terminology explanations that mention "ice fog" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…地上気象観測法では,氷晶が浮かんでいて水平視程が1km以上のときは細氷ice prismsといい,太陽に輝いてキラキラ見えることからダイヤモンド・ダストdiamond dustとも呼ばれる。強度の細氷に過冷却水滴が混在するような場合には水平視程が1km以下になり,このときは氷霧ice fogと呼ばれる。氷霧は主として極地方や大陸の内部で冬季気層が安定し,接地逆転層が発達して地上気温が極端に低くなるところでよくみられる。… ※「ice fog」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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