Use of High-Resolution Structure Functions and Modified Quality Control in the Analysis of Tropical Cyclones

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  • 1 European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading, England
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Abstract

The sensitivity of analysis of a well-observed tropical cyclone to high-resolution structure functions and modification of the analysis scheme to accept data in the vicinity of the cyclone is studied. It is shown that these changes in the analysis system lead to a much improved location of the cyclone. Additionally, the high-resolution structure functions also lead to an analysed structure in the vertical that is closer to the observed data and so is more realistic. However, the strong wind shears in the vertical are still not satisfactorily analysed.

Abstract

The sensitivity of analysis of a well-observed tropical cyclone to high-resolution structure functions and modification of the analysis scheme to accept data in the vicinity of the cyclone is studied. It is shown that these changes in the analysis system lead to a much improved location of the cyclone. Additionally, the high-resolution structure functions also lead to an analysed structure in the vertical that is closer to the observed data and so is more realistic. However, the strong wind shears in the vertical are still not satisfactorily analysed.

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