气象能见度定义为:视力正常的人,在当时天气条件下,能够从天空背景中看到和辨认出目标物(黑色、大小适度)的最大水平距离 气象能见度是气象要素观测中的基本项目之一,是直接影响人类生活、生产、交通的重要问题。
介绍了一种基于透射表原理的可见激光测量气象能见度和灯光能见度的仪器。
This paper presents a kind of measurement instrument for meteorological visibility and lighting visibility using visible laser.
安道尔的滑雪气象预报是将有大雪、能见度低。
The ski report for Andorra was for heavy snow and poor visibility.
北京气象中心周日下午发布了大雾黄色预警称,绝大部分地区的能见度将不足500米。
The Beijing Meteorological Center on Sunday afternoon issued a code yellow alert to warn about fog in the capital, saying visibility would drop to less than 500 meters in most parts of the city.
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