| 摘要: |
| 介绍一种具有"收敛"特性的有限区域旋转风与辐散风分解方案,并与目前常用的一些差分方案进行了比较。实际个例的计算和对比表明,该方案不仅考虑了区域内部强迫函数的作用,而且在迭代过程中加入边值的影响,因此具有极好的重建风场的能力。分解后的旋转风和辐散风在有关的诊断分析中使结果更为合理。 |
| 关键词: 有限区域 风场分解 风场重建 |
| DOI： |
| 分类号: |
| 基金项目:"八·五"攻关项目85-906-16(03-03)、85-906-45(08-05)课题 |
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| SELECTION OF SCHEMES FOR PARTITIONING DIVERGENT AND ROTATIONAL COMPONENTS OF WIND FIELD OVER LIMITED DOMAIN |
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Xie An1, Bai Renhai2
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1.Dept. of Geophysics, peking University, Beijing, 100871;2.Heilongjiang Research Institute of Meteorological Science
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| Abstract: |
| In this paper, a convergent scheme of partitioning the wind field into divergent and rotational components over a limited domain is introduced and compared with some methods in current use. Computation and intercomparison of real case show that the scheme has good capability of reconibinating wind fields due to the inclusion of forcing functions within the domain and of lateral values in processes of iteration. The rotalional and divergent winds so decomposed yield more rational results of relative diagnostic study. |
| Key words: Limited domain Partition of wind field Reconstruction of wind field |
