Obscuring phenomenon: Difference between revisions
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<div class="definition"><div class="short_definition">( | <div class="definition"><div class="short_definition">(''Also called'' [[obscuration]].) Any collection of [[particles]], aloft or in contact with the earth's surface, dense enough to be discernible to the [[observer]].</div><br/> <div class="paragraph">Examples are [[haze]], [[dust]], [[smoke]], [[fog]] or [[ice fog]], spray or [[mist]], [[drifting]] or [[blowing snow]], [[duststorms]] or [[sandstorms]], [[dust whirls]] or [[sand whirls]], and volcanic [[ash]]. Potentially, all [[hydrometeors]] and [[lithometeors]] may be obscuring phenomena.</div><br/> </div> | ||
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Revision as of 14:46, 20 February 2012
obscuring phenomenon
(Also called obscuration.) Any collection of particles, aloft or in contact with the earth's surface, dense enough to be discernible to the observer.
Examples are haze, dust, smoke, fog or ice fog, spray or mist, drifting or blowing snow, duststorms or sandstorms, dust whirls or sand whirls, and volcanic ash. Potentially, all hydrometeors and lithometeors may be obscuring phenomena.