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    Radiometric Measurements of In-Cloud Temperature Fluctuations

    Source: Journal of Applied Meteorology:;1979:;volume( 018 ):;issue: 008::page 1066
    Author:
    Albrecht, Bruce A.
    ,
    Cox, Stephen K.
    ,
    Schubert, Wayne H.
    DOI: 10.1175/1520-0450(1979)018<1066:RMOICT>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The feasibility of measuring in-cloud temperature fluctuations with an infrared radiometer is demonstrated. The results obtained from aircraft measurements in a stratocumulus cloud deck indicate that a radiometer may easily resolve temperature variations within the cloud of less than 0.05°C provided that the cloud is sufficiently opaque. These radiometer measurements of temperature are combined with aircraft observations of vertical velocity to calculate a heat flux within the cloud deck. The heat flux derived using the radiometric observations shows excellent agreement with theoretical predictions of in-cloud heat flux. A similar heat flux calculation using the more conventional temperature transducer data was less by a factor of 5.
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      Radiometric Measurements of In-Cloud Temperature Fluctuations

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    https://yetl.yabesh.ir/yetl1/handle/yetl/4233273
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    contributor authorAlbrecht, Bruce A.
    contributor authorCox, Stephen K.
    contributor authorSchubert, Wayne H.
    date accessioned2017-06-09T17:40:08Z
    date available2017-06-09T17:40:08Z
    date copyright1979/08/01
    date issued1979
    identifier issn0021-8952
    identifier otherams-9750.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4233273
    description abstractThe feasibility of measuring in-cloud temperature fluctuations with an infrared radiometer is demonstrated. The results obtained from aircraft measurements in a stratocumulus cloud deck indicate that a radiometer may easily resolve temperature variations within the cloud of less than 0.05°C provided that the cloud is sufficiently opaque. These radiometer measurements of temperature are combined with aircraft observations of vertical velocity to calculate a heat flux within the cloud deck. The heat flux derived using the radiometric observations shows excellent agreement with theoretical predictions of in-cloud heat flux. A similar heat flux calculation using the more conventional temperature transducer data was less by a factor of 5.
    publisherAmerican Meteorological Society
    titleRadiometric Measurements of In-Cloud Temperature Fluctuations
    typeJournal Paper
    journal volume18
    journal issue8
    journal titleJournal of Applied Meteorology
    identifier doi10.1175/1520-0450(1979)018<1066:RMOICT>2.0.CO;2
    journal fristpage1066
    journal lastpage1071
    treeJournal of Applied Meteorology:;1979:;volume( 018 ):;issue: 008
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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