…IcingThere are two types of icing: glaze and frost. The degree of icing on aircraft is classified into four classes: weak, moderate, strong, and no icing. Clear ice (glaze) is likely to occur in clouds made of unstable supercooled water droplets above the freezing point, or in a frozen layer where heavy rain falls in cold air under a warm front (Figure 2). The degree of danger depends on the size and temperature of the droplets, but it is most dangerous when the droplets are large and the temperature is between -5 and -10°C. … *Some of the terminology that mentions "clear ice" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…着氷icing雨氷と樹氷の2種があり,航空機に着く着氷の程度によって弱,並,強と着氷なしの4階級に分類される。雨氷clear ice(glaze)は凍結高度以上の不安定な過冷却の水滴からできている雲の中や,温暖前線面の下の寒気中に強雨の降り注ぐ凍結層に発生しやすい(図2)。危険の度合は水滴の大きさと温度に左右されるが,最も危険なのは水滴が大きく気温が-5~-10℃のときである。… ※「clear ice」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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