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    Cirrus Cloud Properties Derived from High Spectral Resolution Infrared Spectrometry during FIRE II. Part II: Aircraft HIS Results

    Source: Journal of the Atmospheric Sciences:;1995:;Volume( 052 ):;issue: 023::page 4246
    Author:
    Ackerman, S. A.
    ,
    Smith, W. L.
    ,
    Collard, A. D.
    ,
    Ma, X. L.
    ,
    Revercomb, H. E.
    ,
    Knuteson, R. O.
    DOI: 10.1175/1520-0469(1995)052<4246:CCPDFH>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: This paper parts analysis of cloud observations by the High-Resolution Interferometer Sounder made from the NASA ER-2 aircraft during FIRE II. Clear and cloudy sky radiance spectra are presented in terms of differences between observations and radiative transfer model simulations. Doubling/adding radiative transfer model simulations demonstrate that the magnitude of the brightness temperature differences (?BT) is a function of the cloud particle size distribution and the cloud ice water path. For effective radii greater than approximately 30 µm (size parameter of 18) there is little spectral variation in the brightness temperature (BT). An analysis of brightness temperature differences indicates that cirrus clouds over the FIRE II central site possessed a small-particle mode. The cases analyzed had similar appearances in a plot of ?BT between 11 and 12 µm (BT11 ? BT12) versus the observed ?BT between 8 and 11 µm (BT8 ? BT11), suggesting similarity in the microphysical properties of nongray cirrus. Brightness temperature differences between cirrus cloud over the central site and the Gulf of Mexico are presented to illustrate differences in the cirrus microphysical properties at the two different locations. Cloud effective emissivities and effective radiative temperature were derived for observations over the FIRE central site using complementary lidar and radiosonde data. Small variations in these effective properties were seen on 5 December and 22 November. Although they had similar effective temperatures, the emissivities were very different. Very few clouds were observed to have an emissivity near unity.
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      Cirrus Cloud Properties Derived from High Spectral Resolution Infrared Spectrometry during FIRE II. Part II: Aircraft HIS Results

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4158006
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    • Journal of the Atmospheric Sciences

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    contributor authorAckerman, S. A.
    contributor authorSmith, W. L.
    contributor authorCollard, A. D.
    contributor authorMa, X. L.
    contributor authorRevercomb, H. E.
    contributor authorKnuteson, R. O.
    date accessioned2017-06-09T14:33:34Z
    date available2017-06-09T14:33:34Z
    date copyright1995/12/01
    date issued1995
    identifier issn0022-4928
    identifier otherams-21644.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4158006
    description abstractThis paper parts analysis of cloud observations by the High-Resolution Interferometer Sounder made from the NASA ER-2 aircraft during FIRE II. Clear and cloudy sky radiance spectra are presented in terms of differences between observations and radiative transfer model simulations. Doubling/adding radiative transfer model simulations demonstrate that the magnitude of the brightness temperature differences (?BT) is a function of the cloud particle size distribution and the cloud ice water path. For effective radii greater than approximately 30 µm (size parameter of 18) there is little spectral variation in the brightness temperature (BT). An analysis of brightness temperature differences indicates that cirrus clouds over the FIRE II central site possessed a small-particle mode. The cases analyzed had similar appearances in a plot of ?BT between 11 and 12 µm (BT11 ? BT12) versus the observed ?BT between 8 and 11 µm (BT8 ? BT11), suggesting similarity in the microphysical properties of nongray cirrus. Brightness temperature differences between cirrus cloud over the central site and the Gulf of Mexico are presented to illustrate differences in the cirrus microphysical properties at the two different locations. Cloud effective emissivities and effective radiative temperature were derived for observations over the FIRE central site using complementary lidar and radiosonde data. Small variations in these effective properties were seen on 5 December and 22 November. Although they had similar effective temperatures, the emissivities were very different. Very few clouds were observed to have an emissivity near unity.
    publisherAmerican Meteorological Society
    titleCirrus Cloud Properties Derived from High Spectral Resolution Infrared Spectrometry during FIRE II. Part II: Aircraft HIS Results
    typeJournal Paper
    journal volume52
    journal issue23
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1995)052<4246:CCPDFH>2.0.CO;2
    journal fristpage4246
    journal lastpage4263
    treeJournal of the Atmospheric Sciences:;1995:;Volume( 052 ):;issue: 023
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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