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    An Evaluation of Soundings, Analyses and Model Forecasts Derived from TIROS-N and NOAA-6 Satellite Data

    Source: Monthly Weather Review:;1983:;volume( 111 ):;issue: 003::page 562
    Author:
    Koehler, Thomas L.
    ,
    Derber, John C.
    ,
    Schmidt, Brian D.
    ,
    Horn, Lyle H.
    DOI: 10.1175/1520-0493(1983)111<0562:AEOSAA>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Evaluations of operational TIROS-N and NOAA-6 temperature soundings over North America are presented for an early January 1980 period one month after completion of the First GARP Global Experiment. In addition to collocated comparisons, synoptic analyses derived only from satellite data and model forecasts initialized from these analyses are compared with those obtained from conventional data. The collocated results, similar to those presented by Phillips et al. (1979) and Schlatter (1981) from TIROS-N soundings, show maximum sounding errors new the surface and tropopause. The analysis comparisons further illustrate that thermal gradients inferred from satellite soundings are too weak, with NOAA-6 gradients slightly weaker than TIROS-N gradients. Difference fields between satellite and conventional thickness analyses propagate eastward with the synoptic patterns, strongly suggesting a correlation of satellite sounding errors to synoptic patterns. These anomalies are also retained in model forecasts started from satellite analyses. These results stress the importance of properly defining the error characteristics of satellite soundings before incorporating them into analysis-forecast systems.
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      An Evaluation of Soundings, Analyses and Model Forecasts Derived from TIROS-N and NOAA-6 Satellite Data

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4200867
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    • Monthly Weather Review

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    contributor authorKoehler, Thomas L.
    contributor authorDerber, John C.
    contributor authorSchmidt, Brian D.
    contributor authorHorn, Lyle H.
    date accessioned2017-06-09T16:04:16Z
    date available2017-06-09T16:04:16Z
    date copyright1983/03/01
    date issued1983
    identifier issn0027-0644
    identifier otherams-60221.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4200867
    description abstractEvaluations of operational TIROS-N and NOAA-6 temperature soundings over North America are presented for an early January 1980 period one month after completion of the First GARP Global Experiment. In addition to collocated comparisons, synoptic analyses derived only from satellite data and model forecasts initialized from these analyses are compared with those obtained from conventional data. The collocated results, similar to those presented by Phillips et al. (1979) and Schlatter (1981) from TIROS-N soundings, show maximum sounding errors new the surface and tropopause. The analysis comparisons further illustrate that thermal gradients inferred from satellite soundings are too weak, with NOAA-6 gradients slightly weaker than TIROS-N gradients. Difference fields between satellite and conventional thickness analyses propagate eastward with the synoptic patterns, strongly suggesting a correlation of satellite sounding errors to synoptic patterns. These anomalies are also retained in model forecasts started from satellite analyses. These results stress the importance of properly defining the error characteristics of satellite soundings before incorporating them into analysis-forecast systems.
    publisherAmerican Meteorological Society
    titleAn Evaluation of Soundings, Analyses and Model Forecasts Derived from TIROS-N and NOAA-6 Satellite Data
    typeJournal Paper
    journal volume111
    journal issue3
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(1983)111<0562:AEOSAA>2.0.CO;2
    journal fristpage562
    journal lastpage571
    treeMonthly Weather Review:;1983:;volume( 111 ):;issue: 003
    contenttypeFulltext
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