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    Operational Monitoring of Radar Differential Reflectivity Using the Sun

    Source: Journal of Atmospheric and Oceanic Technology:;2010:;volume( 027 ):;issue: 005::page 881
    Author:
    Holleman, Iwan
    ,
    Huuskonen, Asko
    ,
    Gill, Rashpal
    ,
    Tabary, Pierre
    DOI: 10.1175/2010JTECHA1381.1
    Publisher: American Meteorological Society
    Abstract: A method for the daily monitoring of the differential reflectivity bias for polarimetric weather radars is presented. Sun signals detected in polar volume data produced during operational scanning of the radar are used. This method is an extension of that for monitoring the weather radar antenna pointing at low elevations and the radar receiving chain using the sun. This ?online? method is ideally suited for routine application in networks of operational radars. The online sun monitoring can be used to check the agreement between horizontal and vertical polarization lobes of the radar antenna, which is a prerequisite for high-quality polarimetric measurements. By performing both online sun monitoring and rain calibration at vertical incidence, the differential receiver bias and differential transmitter bias can be disentangled. Results from the polarimetric radars in Trappes (France) and Bornholm (Denmark), demonstrating the importance of regular monitoring of the differential reflectivity bias, are discussed. It is recommended that the online sun-monitoring method, preferably in combination with rain calibration, is routinely performed on all polarimetric weather radars because accurate calibration is a prerequisite for most polarimetric algorithms.
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      Operational Monitoring of Radar Differential Reflectivity Using the Sun

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4212914
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    • Journal of Atmospheric and Oceanic Technology

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    contributor authorHolleman, Iwan
    contributor authorHuuskonen, Asko
    contributor authorGill, Rashpal
    contributor authorTabary, Pierre
    date accessioned2017-06-09T16:37:12Z
    date available2017-06-09T16:37:12Z
    date copyright2010/05/01
    date issued2010
    identifier issn0739-0572
    identifier otherams-71063.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4212914
    description abstractA method for the daily monitoring of the differential reflectivity bias for polarimetric weather radars is presented. Sun signals detected in polar volume data produced during operational scanning of the radar are used. This method is an extension of that for monitoring the weather radar antenna pointing at low elevations and the radar receiving chain using the sun. This ?online? method is ideally suited for routine application in networks of operational radars. The online sun monitoring can be used to check the agreement between horizontal and vertical polarization lobes of the radar antenna, which is a prerequisite for high-quality polarimetric measurements. By performing both online sun monitoring and rain calibration at vertical incidence, the differential receiver bias and differential transmitter bias can be disentangled. Results from the polarimetric radars in Trappes (France) and Bornholm (Denmark), demonstrating the importance of regular monitoring of the differential reflectivity bias, are discussed. It is recommended that the online sun-monitoring method, preferably in combination with rain calibration, is routinely performed on all polarimetric weather radars because accurate calibration is a prerequisite for most polarimetric algorithms.
    publisherAmerican Meteorological Society
    titleOperational Monitoring of Radar Differential Reflectivity Using the Sun
    typeJournal Paper
    journal volume27
    journal issue5
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/2010JTECHA1381.1
    journal fristpage881
    journal lastpage887
    treeJournal of Atmospheric and Oceanic Technology:;2010:;volume( 027 ):;issue: 005
    contenttypeFulltext
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    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian