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    An Investigation of the Moving-Frame Single-Doppler Wind Retrieval Technique Using Taiwan Area Mesoscale Experiment Low-Level Data

    Source: Journal of Applied Meteorology:;2001:;volume( 040 ):;issue: 011::page 1900
    Author:
    Liou, Yu-Chieng
    ,
    Luo, Ing-Shiang
    DOI: 10.1175/1520-0450(2001)040<1900:AIOTMF>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The moving-frame single-Doppler radar wind retrieval technique is investigated using field experimental data observed during the 1987 Taiwan Area Mesoscale Experiment intensive observation period 2. Emphasis is placed on studying the impact of the geometric position of the radar in relation to the quality of the retrievals. Experiments show that this technique is capable of recovering the missing cross-beam wind components, but their magnitude is always underestimated. As a consequence, when the unobserved tangential components are smaller than the observable radial components, the best results are produced. By contrast, if the unknown cross-beam winds considerably exceed the radial winds because of a disadvantageous relationship to the radar observation site, the retrievals become less reliable. However, even without a priori knowledge of the true flow structure, which is always the case in reality, this single-Doppler retrieval scheme demonstrates its ability to distinguish which component (radial or azimuthal) is greater. In other words, when the tangential component completely dominates the radial winds, this message can be correctly delivered through the retrieval algorithm to alert the users so that the radar data and these single-Doppler-retrieved results will be interpreted and used with caution.
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      An Investigation of the Moving-Frame Single-Doppler Wind Retrieval Technique Using Taiwan Area Mesoscale Experiment Low-Level Data

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4148473
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    • Journal of Applied Meteorology

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    contributor authorLiou, Yu-Chieng
    contributor authorLuo, Ing-Shiang
    date accessioned2017-06-09T14:08:05Z
    date available2017-06-09T14:08:05Z
    date copyright2001/11/01
    date issued2001
    identifier issn0894-8763
    identifier otherams-13064.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4148473
    description abstractThe moving-frame single-Doppler radar wind retrieval technique is investigated using field experimental data observed during the 1987 Taiwan Area Mesoscale Experiment intensive observation period 2. Emphasis is placed on studying the impact of the geometric position of the radar in relation to the quality of the retrievals. Experiments show that this technique is capable of recovering the missing cross-beam wind components, but their magnitude is always underestimated. As a consequence, when the unobserved tangential components are smaller than the observable radial components, the best results are produced. By contrast, if the unknown cross-beam winds considerably exceed the radial winds because of a disadvantageous relationship to the radar observation site, the retrievals become less reliable. However, even without a priori knowledge of the true flow structure, which is always the case in reality, this single-Doppler retrieval scheme demonstrates its ability to distinguish which component (radial or azimuthal) is greater. In other words, when the tangential component completely dominates the radial winds, this message can be correctly delivered through the retrieval algorithm to alert the users so that the radar data and these single-Doppler-retrieved results will be interpreted and used with caution.
    publisherAmerican Meteorological Society
    titleAn Investigation of the Moving-Frame Single-Doppler Wind Retrieval Technique Using Taiwan Area Mesoscale Experiment Low-Level Data
    typeJournal Paper
    journal volume40
    journal issue11
    journal titleJournal of Applied Meteorology
    identifier doi10.1175/1520-0450(2001)040<1900:AIOTMF>2.0.CO;2
    journal fristpage1900
    journal lastpage1917
    treeJournal of Applied Meteorology:;2001:;volume( 040 ):;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