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    A Comparison of Winds Observed at Christmas Island using a Wind-Profiling Doppler Radar with NMC and ECMWF Analyses

    Source: Bulletin of the American Meteorological Society:;1988:;volume( 069 ):;issue: 009::page 1041
    Author:
    Gage, Kenneth S.
    ,
    McAfee, John R.
    ,
    Balsley, Ben
    ,
    Collins, William G.
    ,
    Söderman, Daniel
    ,
    Böttger, Horst
    ,
    Radford, Alan
    DOI: 10.1175/1520-0477(1988)069<1041:ACOWOA>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Wind profilers can provide useful wind data from remote regions of the globe, and incorporation of upper-level wind profiler data into analysis products can significantly improve the quality of analyses in data sparse regions. A wind-profiling Doppler radar was installed by the Acronomy Laboratory on Christmas Island during late 1985 as part of the Tropical Ocean Global Atmosphere (TOGA) Program. The Christmas Island profiler is self-contained and operates essentially unattended. Since April 1986, data from the Christmas Island profiler have been telemetered via GOES Satellite to provide hourly-averaged soundings of the wind four times daily keyed to the standard synoptic observing times and incorporated routinely onto the Global Telecommunication System (GTS) for world-wide distribution. In 1987 both NMC and ECMWF began using Christmas Island wind profiler observations in preparing their global analysis and forecast products. Detailed comparisons of NMC and ECMWF analyses with Christmas Island winds before and after profiler winds were introduced into the global analyses are presented. Results of statistical comparisons reveal a marked improvement in the analyses following the introduction of Christmas Island winds into the standard analysis products: before the Christmas Island winds were introduced into the analyses, monthly mean standard deviations between analyzed and observed winds were typically in the range 3?5 m · s?1 and monthly mean biases were typically in the range 1?3 m after the Christmas Island winds were introduced, the standard deviation was reduced to about 1?2 m . s?1 at most heights, while the bias values were reduced to less than 0.5 m · s?1 at most heights.
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      A Comparison of Winds Observed at Christmas Island using a Wind-Profiling Doppler Radar with NMC and ECMWF Analyses

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4160894
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    • Bulletin of the American Meteorological Society

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    contributor authorGage, Kenneth S.
    contributor authorMcAfee, John R.
    contributor authorBalsley, Ben
    contributor authorCollins, William G.
    contributor authorSöderman, Daniel
    contributor authorBöttger, Horst
    contributor authorRadford, Alan
    date accessioned2017-06-09T14:40:35Z
    date available2017-06-09T14:40:35Z
    date copyright1988/09/01
    date issued1988
    identifier issn0003-0007
    identifier otherams-24243.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4160894
    description abstractWind profilers can provide useful wind data from remote regions of the globe, and incorporation of upper-level wind profiler data into analysis products can significantly improve the quality of analyses in data sparse regions. A wind-profiling Doppler radar was installed by the Acronomy Laboratory on Christmas Island during late 1985 as part of the Tropical Ocean Global Atmosphere (TOGA) Program. The Christmas Island profiler is self-contained and operates essentially unattended. Since April 1986, data from the Christmas Island profiler have been telemetered via GOES Satellite to provide hourly-averaged soundings of the wind four times daily keyed to the standard synoptic observing times and incorporated routinely onto the Global Telecommunication System (GTS) for world-wide distribution. In 1987 both NMC and ECMWF began using Christmas Island wind profiler observations in preparing their global analysis and forecast products. Detailed comparisons of NMC and ECMWF analyses with Christmas Island winds before and after profiler winds were introduced into the global analyses are presented. Results of statistical comparisons reveal a marked improvement in the analyses following the introduction of Christmas Island winds into the standard analysis products: before the Christmas Island winds were introduced into the analyses, monthly mean standard deviations between analyzed and observed winds were typically in the range 3?5 m · s?1 and monthly mean biases were typically in the range 1?3 m after the Christmas Island winds were introduced, the standard deviation was reduced to about 1?2 m . s?1 at most heights, while the bias values were reduced to less than 0.5 m · s?1 at most heights.
    publisherAmerican Meteorological Society
    titleA Comparison of Winds Observed at Christmas Island using a Wind-Profiling Doppler Radar with NMC and ECMWF Analyses
    typeJournal Paper
    journal volume69
    journal issue9
    journal titleBulletin of the American Meteorological Society
    identifier doi10.1175/1520-0477(1988)069<1041:ACOWOA>2.0.CO;2
    journal fristpage1041
    journal lastpage1046
    treeBulletin of the American Meteorological Society:;1988:;volume( 069 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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