YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Monthly Weather Review
    • View Item
    •   YE&T Library
    • AMS
    • Monthly Weather Review
    • 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

    Sensitivity Testing of Extratropical Transitions Using Potential Vorticity Inversions to Modify Initial Conditions: Hurricane Earl Case Study

    Source: Monthly Weather Review:;2001:;volume( 129 ):;issue: 007::page 1617
    Author:
    McTaggart-Cowan, R.
    ,
    Gyakum, J. R.
    ,
    Yau, M. K.
    DOI: 10.1175/1520-0493(2001)129<1617:STOETU>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: This study uses the Mesoscale Compressible Community model to simulate the extratropical transition and reintensification of Hurricane Earl (1998) for the purposes of testing sensitivity to modification of the model's initial conditions. Though relatively strong ?classical? cyclogenetic forcings were present in this case, operational forecasts seriously underpredicted the severity of the reintensification. Employing a piecewise potential vorticity (PV) inversion, the authors remove localized PV anomaly (PV?) maxima from the initial conditions and rebalance the fields for input to the model. Several PV? structures in an upstream trough, and the PV? associated with the hurricane, are removed individually and the model is rerun. Comparison of the resulting output with that of the control integration allows for a quantification of the impact of each PV anomaly on the regeneration of Earl. It is found that the existence of an upstream trough is of primary importance to the storm's reintensification, while the presence of the low-level circulation associated with the decaying hurricane plays only a secondary role.
    • Download: (1.505Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Sensitivity Testing of Extratropical Transitions Using Potential Vorticity Inversions to Modify Initial Conditions: Hurricane Earl Case Study

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4204790
    Collections
    • Monthly Weather Review

    Show full item record

    contributor authorMcTaggart-Cowan, R.
    contributor authorGyakum, J. R.
    contributor authorYau, M. K.
    date accessioned2017-06-09T16:13:44Z
    date available2017-06-09T16:13:44Z
    date copyright2001/07/01
    date issued2001
    identifier issn0027-0644
    identifier otherams-63752.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4204790
    description abstractThis study uses the Mesoscale Compressible Community model to simulate the extratropical transition and reintensification of Hurricane Earl (1998) for the purposes of testing sensitivity to modification of the model's initial conditions. Though relatively strong ?classical? cyclogenetic forcings were present in this case, operational forecasts seriously underpredicted the severity of the reintensification. Employing a piecewise potential vorticity (PV) inversion, the authors remove localized PV anomaly (PV?) maxima from the initial conditions and rebalance the fields for input to the model. Several PV? structures in an upstream trough, and the PV? associated with the hurricane, are removed individually and the model is rerun. Comparison of the resulting output with that of the control integration allows for a quantification of the impact of each PV anomaly on the regeneration of Earl. It is found that the existence of an upstream trough is of primary importance to the storm's reintensification, while the presence of the low-level circulation associated with the decaying hurricane plays only a secondary role.
    publisherAmerican Meteorological Society
    titleSensitivity Testing of Extratropical Transitions Using Potential Vorticity Inversions to Modify Initial Conditions: Hurricane Earl Case Study
    typeJournal Paper
    journal volume129
    journal issue7
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(2001)129<1617:STOETU>2.0.CO;2
    journal fristpage1617
    journal lastpage1636
    treeMonthly Weather Review:;2001:;volume( 129 ):;issue: 007
    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