Visibility

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  • Visibility
definition
  • The greatest distance from an observer that a prominent object of known characteristics can be seen and unidentified by unaided, normal eyes. 
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Abstract from DBPedia
    In meteorology, visibility is a measure of the distance at which an object or light can be clearly discerned. It is reported within surface weather observations and METAR code either in meters or statute miles, depending upon the country. Visibility affects all forms of traffic: roads, sailing and aviation. Meteorological visibility refers to transparency of air: in dark, meteorological visibility is still the same as in daylight for the same air.

    視程(してい)とは肉眼で物体がはっきりと確認できる最大の距離のこと。大気の見通し。

    (Source: http://dbpedia.org/resource/Visibility)

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