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    Photophoretic Effects in the Stratosphere

    Source: Journal of the Atmospheric Sciences:;1964:;Volume( 021 ):;issue: 005::page 475
    Author:
    Orr, Clyde
    ,
    Keng, Edward Y. H.
    DOI: 10.1175/1520-0469(1964)021<0475:PEITS>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Photophoresis, the movement of small particles under the influence of light, may exert a significant effect on stratospheric processes. The photophoretic behavior of salt and metallic particles from 0.1 to 2.0 microns in radius under pressures of from 4 to 50 mm Hg with artificial light of known intensity was investigated. The velocities expected to be imparted to particles by sunlight at altitudes of from 22 to 40 km were then calculated from typical measured force values. It is concluded that, in the absence of wind and other effects, some particles may actually be caused to rise against the force of gravity while others are induced to fall considerably more rapidly than they would under gravity alone.
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      Photophoretic Effects in the Stratosphere

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    https://yetl.yabesh.ir/yetl1/handle/yetl/4150662
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    contributor authorOrr, Clyde
    contributor authorKeng, Edward Y. H.
    date accessioned2017-06-09T14:13:23Z
    date available2017-06-09T14:13:23Z
    date copyright1964/09/01
    date issued1964
    identifier issn0022-4928
    identifier otherams-15034.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4150662
    description abstractPhotophoresis, the movement of small particles under the influence of light, may exert a significant effect on stratospheric processes. The photophoretic behavior of salt and metallic particles from 0.1 to 2.0 microns in radius under pressures of from 4 to 50 mm Hg with artificial light of known intensity was investigated. The velocities expected to be imparted to particles by sunlight at altitudes of from 22 to 40 km were then calculated from typical measured force values. It is concluded that, in the absence of wind and other effects, some particles may actually be caused to rise against the force of gravity while others are induced to fall considerably more rapidly than they would under gravity alone.
    publisherAmerican Meteorological Society
    titlePhotophoretic Effects in the Stratosphere
    typeJournal Paper
    journal volume21
    journal issue5
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1964)021<0475:PEITS>2.0.CO;2
    journal fristpage475
    journal lastpage478
    treeJournal of the Atmospheric Sciences:;1964:;Volume( 021 ):;issue: 005
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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