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    Evaluation of Medium-Range Forecasts for Hurricane Sandy

    Source: Monthly Weather Review:;2014:;volume( 142 ):;issue: 005::page 1962
    Author:
    Magnusson, Linus
    ,
    Bidlot, Jean-Raymond
    ,
    Lang, Simon T. K.
    ,
    Thorpe, Alan
    ,
    Wedi, Nils
    ,
    Yamaguchi, Munehiko
    DOI: 10.1175/MWR-D-13-00228.1
    Publisher: American Meteorological Society
    Abstract: n 30 October 2012 Hurricane Sandy made landfall on the U.S. East Coast with a devastating impact. Here the performance of the ECMWF forecasts (both high resolution and ensemble) are evaluated together with ensemble forecasts from other numerical weather prediction centers, available from The Observing System Research and Predictability Experiment (THORPEX) Interactive Grand Global Ensemble (TIGGE) archive. The sensitivity to sea surface temperature (SST) and model resolution for the ECMWF forecasts are explored. The results show that the ECMWF forecasts provided a clear indication of the landfall from 7 days in advance. Comparing ensemble forecasts from different centers, the authors find the ensemble forecasts from ECMWF to be the most consistent in the forecast of the landfall of Sandy on the New Jersey coastline. The impact of the warm SST anomaly off the U.S. East Coast is investigated by running sensitivity experiments with climatological SST instead of persisting the SST anomaly from the analysis. The results show that the SST anomaly had a small effect on Sandy?s track in the forecast, but the forecasts initialized with the warm SST anomaly feature a more intense system in terms of the depth of the cyclone, wind speeds, and precipitation. Furthermore, the role of spatial resolution is investigated by comparing four global simulations, spanning from TL159 (150 km) to TL3999 (5 km) horizontal resolution. Forecasts from 3 and 5 days before the landfall are evaluated. While all resolutions predict Sandy?s landfall, at very high resolution the tropical cyclone intensity and the oceanic wave forecasts are greatly improved.
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      Evaluation of Medium-Range Forecasts for Hurricane Sandy

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    contributor authorMagnusson, Linus
    contributor authorBidlot, Jean-Raymond
    contributor authorLang, Simon T. K.
    contributor authorThorpe, Alan
    contributor authorWedi, Nils
    contributor authorYamaguchi, Munehiko
    date accessioned2017-06-09T17:31:26Z
    date available2017-06-09T17:31:26Z
    date copyright2014/05/01
    date issued2014
    identifier issn0027-0644
    identifier otherams-86689.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4230274
    description abstractn 30 October 2012 Hurricane Sandy made landfall on the U.S. East Coast with a devastating impact. Here the performance of the ECMWF forecasts (both high resolution and ensemble) are evaluated together with ensemble forecasts from other numerical weather prediction centers, available from The Observing System Research and Predictability Experiment (THORPEX) Interactive Grand Global Ensemble (TIGGE) archive. The sensitivity to sea surface temperature (SST) and model resolution for the ECMWF forecasts are explored. The results show that the ECMWF forecasts provided a clear indication of the landfall from 7 days in advance. Comparing ensemble forecasts from different centers, the authors find the ensemble forecasts from ECMWF to be the most consistent in the forecast of the landfall of Sandy on the New Jersey coastline. The impact of the warm SST anomaly off the U.S. East Coast is investigated by running sensitivity experiments with climatological SST instead of persisting the SST anomaly from the analysis. The results show that the SST anomaly had a small effect on Sandy?s track in the forecast, but the forecasts initialized with the warm SST anomaly feature a more intense system in terms of the depth of the cyclone, wind speeds, and precipitation. Furthermore, the role of spatial resolution is investigated by comparing four global simulations, spanning from TL159 (150 km) to TL3999 (5 km) horizontal resolution. Forecasts from 3 and 5 days before the landfall are evaluated. While all resolutions predict Sandy?s landfall, at very high resolution the tropical cyclone intensity and the oceanic wave forecasts are greatly improved.
    publisherAmerican Meteorological Society
    titleEvaluation of Medium-Range Forecasts for Hurricane Sandy
    typeJournal Paper
    journal volume142
    journal issue5
    journal titleMonthly Weather Review
    identifier doi10.1175/MWR-D-13-00228.1
    journal fristpage1962
    journal lastpage1981
    treeMonthly Weather Review:;2014:;volume( 142 ):;issue: 005
    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
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