V2EX cold front

Cold Front

定义 Definition

cold front(冷锋):气象学术语,指一股较冷的空气推进并取代较暖空气的锋面边界。冷锋过境常带来气温骤降、风向变化、阵雨或雷暴,随后天气转晴但更冷更干燥。(也可在非正式语境中引申指“冷空气来袭/突然转冷”。)

发音 Pronunciation (IPA)

/kold frnt/

例句 Examples

A cold front is moving in tonight.
一股冷锋今晚将会移入。

As the cold front swept across the region, warm humid air was forced upward, triggering thunderstorms and a sharp drop in temperature.
冷锋横扫该地区时,温暖潮湿的空气被迫抬升,引发雷暴,并导致气温骤降。

词源 Etymology

cold 源自古英语 cald(寒冷的);front 在气象学中借自军事/地理中的“前线、前沿”之意,指两种不同气团交汇形成的“前沿地带”。“cold front”作为复合词,字面即“冷空气的前沿边界”,在20世纪气象学发展中成为标准术语。

相关词 Related Words

文学与作品 Notable Works

  • The Perfect Storm(Sebastian Junger):书中多处以气象术语描写海上风暴的形成过程,涉及冷锋等锋面活动。
  • National Geographic(杂志多篇气象/科普文章):常用“cold front”解释天气突变、雷暴与温度变化机制。
  • The American Heritage Dictionary of the English Language(词典条目与用例):作为标准气象名词收录并解释其典型天气影响。
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