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    A Validation of a Satellite Cloud Retrieval during ASTEX

    Source: Journal of the Atmospheric Sciences:;1995:;Volume( 052 ):;issue: 016::page 2985
    Author:
    Platnick, S.
    ,
    Valero, Francisco P. J.
    DOI: 10.1175/1520-0469(1995)052<2985:AVOASC>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: An algorithm using NOAA-12 AVHRR (Advanced Very High Resolution Radiometer) solar reflectance measurements for retrieving cloud droplet size and optical thickness has been applied to a boundary layer stratocumulus cloud in the vicinity of the Azores on 12 June 1992 during the Atlantic Stratocumulus Transition Experiment (ASTEX). This day was particularly advantageous for validations because of the absence of cirrus or other higher-level clouds during the satellite overpass and the existence of a large relatively uniform stratus cloud dock. Uncertainty estimates for the retrievals are presented along with a discussion of the algorithm. An in-flight absolute calibration of AVHRR channel 1, necessary for accurate optical thickness retrievals, was done concurrently with the retrievals through comparison with a visible radiometer flown on the National Aeronautics and Space Administration's ER-2 and using the stratus cloud as the common reflectance target. Results are compared with in situ microphysical measurements taken with the Particulate Volume Monitor (PVM-100) and Forward Scattering Spectrometer Probe (FSSP-100) instruments on the University of Washington C-131A air-craft. Satellite retrievals of both optical thickness and droplet size lie within the values measured by the two in situ instruments.
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      A Validation of a Satellite Cloud Retrieval during ASTEX

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4157908
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    contributor authorPlatnick, S.
    contributor authorValero, Francisco P. J.
    date accessioned2017-06-09T14:33:20Z
    date available2017-06-09T14:33:20Z
    date copyright1995/08/01
    date issued1995
    identifier issn0022-4928
    identifier otherams-21556.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4157908
    description abstractAn algorithm using NOAA-12 AVHRR (Advanced Very High Resolution Radiometer) solar reflectance measurements for retrieving cloud droplet size and optical thickness has been applied to a boundary layer stratocumulus cloud in the vicinity of the Azores on 12 June 1992 during the Atlantic Stratocumulus Transition Experiment (ASTEX). This day was particularly advantageous for validations because of the absence of cirrus or other higher-level clouds during the satellite overpass and the existence of a large relatively uniform stratus cloud dock. Uncertainty estimates for the retrievals are presented along with a discussion of the algorithm. An in-flight absolute calibration of AVHRR channel 1, necessary for accurate optical thickness retrievals, was done concurrently with the retrievals through comparison with a visible radiometer flown on the National Aeronautics and Space Administration's ER-2 and using the stratus cloud as the common reflectance target. Results are compared with in situ microphysical measurements taken with the Particulate Volume Monitor (PVM-100) and Forward Scattering Spectrometer Probe (FSSP-100) instruments on the University of Washington C-131A air-craft. Satellite retrievals of both optical thickness and droplet size lie within the values measured by the two in situ instruments.
    publisherAmerican Meteorological Society
    titleA Validation of a Satellite Cloud Retrieval during ASTEX
    typeJournal Paper
    journal volume52
    journal issue16
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1995)052<2985:AVOASC>2.0.CO;2
    journal fristpage2985
    journal lastpage3001
    treeJournal of the Atmospheric Sciences:;1995:;Volume( 052 ):;issue: 016
    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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