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    Operational Validation of the MOPITT Instrument Optical Filters

    Source: Journal of Atmospheric and Oceanic Technology:;2002:;volume( 019 ):;issue: 011::page 1772
    Author:
    Deeter, M. N.
    ,
    Francis, G. L.
    ,
    Edwards, D. P.
    ,
    Gille, J. C.
    ,
    McKernan, E.
    ,
    Drummond, James R.
    DOI: 10.1175/1520-0426(2002)019<1772:OVOTMI>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Optical bandpass filters in the Measurements of Pollution in the Troposphere (MOPITT) satellite remote sensing instrument selectivity limit the throughput radiance to absorptive spectral bands associated with the satellite-observed trace gases CO and CH4. Precise specification of the spectral characteristics of these filters is required to optimize retrieval accuracy. The effects and potential causes of spectral shifts in the optical bandpass filter profiles are described. Specifically, a shift in the assumed bandpass profile produces a relative bias between the calibrated satellite radiances and the corresponding values calculated by an instrument-specific forward radiative transfer model. Conversely, it is shown that the observed bias (as identified and quantified using operational MOPITT satellite radiance data) can be used to determine the relative spectral shift between the nominal (prelaunch) filter profiles and the true operational (in orbit) profiles. Revising both the radiance calibration algorithm and the forward radiative transfer model to account for the revised filter profiles effectively eliminates the radiance biases.
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      Operational Validation of the MOPITT Instrument Optical Filters

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4157012
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    • Journal of Atmospheric and Oceanic Technology

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    contributor authorDeeter, M. N.
    contributor authorFrancis, G. L.
    contributor authorEdwards, D. P.
    contributor authorGille, J. C.
    contributor authorMcKernan, E.
    contributor authorDrummond, James R.
    date accessioned2017-06-09T14:31:00Z
    date available2017-06-09T14:31:00Z
    date copyright2002/11/01
    date issued2002
    identifier issn0739-0572
    identifier otherams-2075.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4157012
    description abstractOptical bandpass filters in the Measurements of Pollution in the Troposphere (MOPITT) satellite remote sensing instrument selectivity limit the throughput radiance to absorptive spectral bands associated with the satellite-observed trace gases CO and CH4. Precise specification of the spectral characteristics of these filters is required to optimize retrieval accuracy. The effects and potential causes of spectral shifts in the optical bandpass filter profiles are described. Specifically, a shift in the assumed bandpass profile produces a relative bias between the calibrated satellite radiances and the corresponding values calculated by an instrument-specific forward radiative transfer model. Conversely, it is shown that the observed bias (as identified and quantified using operational MOPITT satellite radiance data) can be used to determine the relative spectral shift between the nominal (prelaunch) filter profiles and the true operational (in orbit) profiles. Revising both the radiance calibration algorithm and the forward radiative transfer model to account for the revised filter profiles effectively eliminates the radiance biases.
    publisherAmerican Meteorological Society
    titleOperational Validation of the MOPITT Instrument Optical Filters
    typeJournal Paper
    journal volume19
    journal issue11
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/1520-0426(2002)019<1772:OVOTMI>2.0.CO;2
    journal fristpage1772
    journal lastpage1782
    treeJournal of Atmospheric and Oceanic Technology:;2002:;volume( 019 ):;issue: 011
    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
    yabeshDSpacePersian