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contributor authorPlatt, C. M. R.
contributor authorAbshire, N. L.
contributor authorMcNice, G. T.
date accessioned2017-06-09T17:39:37Z
date available2017-06-09T17:39:37Z
date copyright1978/08/01
date issued1978
identifier issn0021-8952
identifier otherams-9528.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4233026
description abstractLidar observations of a winter ice cloud in the zenith gave a very high reflection but a very small depolarization. When the lidar was tilted more than 0.5° away from the zenith, the reflection amplitude fell to 3% of it's zenith value, but the depolarization increased. The above properties proved unambiguously that reflection was occurring from the specular surfaces of horizontal crystals. These properties were used to estimate some cloud microphysical properties. At a selected time, the estimates gave a mean ?diameter? of 74 ?m for the horizontal faces, a crystal number density of 0.78 ??1, and a maximum departure of the crystal axis from the horizontal of 0.5°. The fraction of the total crystal cross section which was specularly reflecting was estimated as unity.
publisherAmerican Meteorological Society
titleSome Microphysical Properties of an Ice Cloud from Lidar Observation of Horizontally Oriented Crystals
typeJournal Paper
journal volume17
journal issue8
journal titleJournal of Applied Meteorology
identifier doi10.1175/1520-0450(1978)017<1220:SMPOAI>2.0.CO;2
journal fristpage1220
journal lastpage1224
treeJournal of Applied Meteorology:;1978:;volume( 017 ):;issue: 008
contenttypeFulltext


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