| 摘要: |
| 对天气形势和要素场进行定量描述,是客观定量预报、诊断分析十分关心的问题之一。本文用切比雪夫多项式展开的典型场和简化的场分析了前八个切氏系数的含义,再用两类实际天气形势的平均情况对比,证实八个切氏系数都可用来定量描述气象场。 |
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| A PRELIMINARY EXPERIMENT OF THE OBJECTIVF DESCRIPTION OF METEOROLOGICAL FIELDS IN SOUTH CHINA BY THE COEFFICIENTS OF CHEBYSHEV |
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Yang Hefa1, Lin Liangxun2
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1.Guangdong Provincial Meteorological Bureau;2.Guangzhou Central Meteorological Observatory
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| Abstract: |
| The objective description of meteorological fields is one of the important questions on objective and quantitative forecast and diagnostic analysis In this paper, the meaning of the first eight Chebyshev's coefficients have been explained with the typical and simple fields expanded by Chebyshev polynomial. Then, having compared with actual weather charts,we find all of the first eight Chebyshev 's coefficients are available for the objective description of meteorological fields. |
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