YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of Atmospheric and Oceanic Technology
    • View Item
    •   YE&T Library
    • AMS
    • Journal of Atmospheric and Oceanic Technology
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Retrieval of Three-Dimensional Raindrop Size Distribution Using X-Band Polarimetric Radar Data

    Source: Journal of Atmospheric and Oceanic Technology:;2010:;volume( 027 ):;issue: 008::page 1265
    Author:
    Kim, D-S.
    ,
    Maki, M.
    ,
    Lee, D-I.
    DOI: 10.1175/2010JTECHA1407.1
    Publisher: American Meteorological Society
    Abstract: An improved algorithm based on the self-consistent principle for rain attenuation correction of reflectivity ZH and differential reflectivity ZDR are presented for X-band radar. The proposed algorithm calculates the optimum coefficients for the relation between the specific attenuation coefficient and the specific differential phase, every 1 km along a slant range. The attenuation-corrected ZDR is calculated from reflectivity at horizontal polarization and from reflectivity at vertical polarization after attenuation correction. The improved rain attenuation correction algorithm is applied to the range?height indicator (RHI) scans as well as the plan position indicator (PPI) volume scan data observed by X-band wavelength (MP-X) radar, as operated by the National Research Institute for Earth Science and Disaster Prevention (NIED) in Japan. The corrected ZH and ZDR values are in good agreement with those calculated from the drop size distribution (DSD) measured by disdrometers. The two governing parameters of a normalized gamma DSD, normalized number concentration NW, and drop median diameter D0 are estimated from the corrected ZH and ZDR, and specific differential phase KDP values based on the ?constrained-gamma? method. The method is applied to PPI and RHI data of a typhoon rainband to retrieve the three-dimensional distribution of DSD. The retrieved DSD parameters show reasonable agreement with disdrometer data. The present results demonstrate that high-quality correction and retrieval DSDs can be derived from X-band polarimetric radar data.
    • Download: (2.136Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Retrieval of Three-Dimensional Raindrop Size Distribution Using X-Band Polarimetric Radar Data

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4212930
    Collections
    • Journal of Atmospheric and Oceanic Technology

    Show full item record

    contributor authorKim, D-S.
    contributor authorMaki, M.
    contributor authorLee, D-I.
    date accessioned2017-06-09T16:37:15Z
    date available2017-06-09T16:37:15Z
    date copyright2010/08/01
    date issued2010
    identifier issn0739-0572
    identifier otherams-71078.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4212930
    description abstractAn improved algorithm based on the self-consistent principle for rain attenuation correction of reflectivity ZH and differential reflectivity ZDR are presented for X-band radar. The proposed algorithm calculates the optimum coefficients for the relation between the specific attenuation coefficient and the specific differential phase, every 1 km along a slant range. The attenuation-corrected ZDR is calculated from reflectivity at horizontal polarization and from reflectivity at vertical polarization after attenuation correction. The improved rain attenuation correction algorithm is applied to the range?height indicator (RHI) scans as well as the plan position indicator (PPI) volume scan data observed by X-band wavelength (MP-X) radar, as operated by the National Research Institute for Earth Science and Disaster Prevention (NIED) in Japan. The corrected ZH and ZDR values are in good agreement with those calculated from the drop size distribution (DSD) measured by disdrometers. The two governing parameters of a normalized gamma DSD, normalized number concentration NW, and drop median diameter D0 are estimated from the corrected ZH and ZDR, and specific differential phase KDP values based on the ?constrained-gamma? method. The method is applied to PPI and RHI data of a typhoon rainband to retrieve the three-dimensional distribution of DSD. The retrieved DSD parameters show reasonable agreement with disdrometer data. The present results demonstrate that high-quality correction and retrieval DSDs can be derived from X-band polarimetric radar data.
    publisherAmerican Meteorological Society
    titleRetrieval of Three-Dimensional Raindrop Size Distribution Using X-Band Polarimetric Radar Data
    typeJournal Paper
    journal volume27
    journal issue8
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/2010JTECHA1407.1
    journal fristpage1265
    journal lastpage1285
    treeJournal of Atmospheric and Oceanic Technology:;2010:;volume( 027 ):;issue: 008
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    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