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    Comparison between Total Cloud Cover in Four Reanalysis Products and Cloud Measured by Visual Observations at U.S. Weather Stations

    Source: Journal of Climate:;2016:;volume( 029 ):;issue: 006::page 2015
    Author:
    Free, Melissa
    ,
    Sun, Bomin
    ,
    Yoo, Hye Lim
    DOI: 10.1175/JCLI-D-15-0637.1
    Publisher: American Meteorological Society
    Abstract: homogeneity-adjusted dataset of total cloud cover from weather stations in the contiguous United States is compared with cloud cover in four state-of-the-art global reanalysis products: the Climate Forecast System Reanalysis from NCEP, the Modern-Era Retrospective Analysis for Research and Applications from NASA, ERA-Interim from ECMWF, and the Japanese 55-year Reanalysis Project from the Japan Meteorological Agency. The reanalysis products examined in this study generally show much lower cloud amount than visual weather station data, and this underestimation appears to be generally consistent with their overestimation of downward surface shortwave fluxes when compared with surface radiation data from the Surface Radiation Network. Nevertheless, the reanalysis products largely succeed in simulating the main aspects of interannual variability of cloudiness for large-scale means, as measured by correlations of 0.81?0.90 for U.S. mean time series. Trends in the reanalysis datasets for the U.S. mean for 1979?2009, ranging from ?0.38% to ?1.8% decade?1, are in the same direction as the trend in surface data (?0.50% decade?1), but further effort is needed to understand the discrepancies in their magnitudes.
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      Comparison between Total Cloud Cover in Four Reanalysis Products and Cloud Measured by Visual Observations at U.S. Weather Stations

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4224194
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    contributor authorFree, Melissa
    contributor authorSun, Bomin
    contributor authorYoo, Hye Lim
    date accessioned2017-06-09T17:12:57Z
    date available2017-06-09T17:12:57Z
    date copyright2016/03/01
    date issued2016
    identifier issn0894-8755
    identifier otherams-81215.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4224194
    description abstracthomogeneity-adjusted dataset of total cloud cover from weather stations in the contiguous United States is compared with cloud cover in four state-of-the-art global reanalysis products: the Climate Forecast System Reanalysis from NCEP, the Modern-Era Retrospective Analysis for Research and Applications from NASA, ERA-Interim from ECMWF, and the Japanese 55-year Reanalysis Project from the Japan Meteorological Agency. The reanalysis products examined in this study generally show much lower cloud amount than visual weather station data, and this underestimation appears to be generally consistent with their overestimation of downward surface shortwave fluxes when compared with surface radiation data from the Surface Radiation Network. Nevertheless, the reanalysis products largely succeed in simulating the main aspects of interannual variability of cloudiness for large-scale means, as measured by correlations of 0.81?0.90 for U.S. mean time series. Trends in the reanalysis datasets for the U.S. mean for 1979?2009, ranging from ?0.38% to ?1.8% decade?1, are in the same direction as the trend in surface data (?0.50% decade?1), but further effort is needed to understand the discrepancies in their magnitudes.
    publisherAmerican Meteorological Society
    titleComparison between Total Cloud Cover in Four Reanalysis Products and Cloud Measured by Visual Observations at U.S. Weather Stations
    typeJournal Paper
    journal volume29
    journal issue6
    journal titleJournal of Climate
    identifier doi10.1175/JCLI-D-15-0637.1
    journal fristpage2015
    journal lastpage2021
    treeJournal of Climate:;2016:;volume( 029 ):;issue: 006
    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