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Effects of scatterometer winds on the NCEP global model analyses and forecasts : two case studies
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1997
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[PDF-17.98 MB]
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Description:The purpose of this report is to examine the impact of scatterometer winds on the current NCEP global model under specific synoptic conditions. For this purpose, several cases have been identified where the scatterometer data might significantly improve the model's surface analysis, as done by Duffy and Atlas [1986] . These cases typically involve errors in the model's analyzed position of a cyclone, verified by the surface wind field from the scatterometer as well as an independent manual analysis or visible satellite imagery. When the scatterometer winds indicate a substantially large error in the model's position of a cyclone, one would hope that the inclusion of the scatterometer winds into the model's data assimilation would improve the analysis and subsequent forecast. This study attempts to answer the question of what kind of impact (if any) the data are having in improving the model's depiction of the real atmosphere.
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Rights Information:CC0 Public Domain
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Compliance:Library
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