V2EX airglow

Airglow

Definition / 释义

大气辉光:地球高层大气在夜间或白天因原子、分子被太阳辐射激发后再发光而产生的微弱自然光(不同于更明亮、由带电粒子引起的极光)。常见于天空背景光中,尤其在远离城市光污染处更易观测。

Pronunciation / 发音

/erlo/

Examples / 例句

Airglow makes the night sky faintly bright even far from city lights.
大气辉光会让夜空在远离城市灯光的地方也依然微微发亮。

Scientists used sensitive cameras to measure airglow and infer changes in the upper atmosphere after solar activity.
科学家使用高灵敏相机测量大气辉光,并据此推断太阳活动后高层大气的变化。

Etymology / 词源

air(空气)+ glow(发光、微光)构成的合成词,20世纪随着高空大气与光学观测发展而被科学界广泛使用,用来指代“来自大气本身的微弱发光”这一现象。

Related Words / 相关词

Literary Works / 文学作品

  • Cosmos Carl Sagan(以科普叙述涉及地球大气与夜空背景光等现象,常提及大气发光/辉光相关概念)
  • The Cambridge Encyclopedia of Astronomy 多位作者(天文学百科中讨论夜空背景光与大气辉光)
  • An Introduction to Atmospheric Physics David G. Andrews(大气物理教材中对大气辉光与上层大气过程有专门说明)
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