Ceiling light: Difference between revisions
From Glossary of Meteorology
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<div class="definition"><div class="short_definition">( | <div class="definition"><div class="short_definition">(''Also called'' ceiling projector) A type of [[cloud-height indicator]] that uses a [[searchlight]] to project vertically a narrow [[beam]] of [[light]] onto a [[cloud base]].</div><br/> <div class="paragraph">The height of the cloud base is determined by using a [[clinometer]], located at a known distance from the ceiling light, to measure the angle included by the illuminated spot on the [[cloud]], the [[observer]], and the ceiling light. <br/>''Compare'' [[ceilometer]].</div><br/> </div><div class="reference">Middleton, W. E. K. 1969. Invention of the Meteorological Instruments. Johns Hopkins Press, Baltimore, . p. 274. </div><br/> | ||
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Latest revision as of 13:48, 20 February 2012
ceiling light
(Also called ceiling projector) A type of cloud-height indicator that uses a searchlight to project vertically a narrow beam of light onto a cloud base.
The height of the cloud base is determined by using a clinometer, located at a known distance from the ceiling light, to measure the angle included by the illuminated spot on the cloud, the observer, and the ceiling light.
Compare ceilometer.
Compare ceilometer.
Middleton, W. E. K. 1969. Invention of the Meteorological Instruments. Johns Hopkins Press, Baltimore, . p. 274.
