Visibility in the Atmosphere
ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA
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The author gives a description of present-day ways of determining visibility through the atmosphere. He explains how atmospheric transmissivity, the visibility of actual objects, and the range of visibility on landing an aircraft are measured. He emphasizes particularly the methods for determining the level of visibility. In a number of cases he concludes that problems which he regards as being important have not yet been satisfactorily solved.