| 广州地区1984年6月小阵雨的微物理结构 |
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| 引用本文： | 吴兑.广州地区1984年6月小阵雨的微物理结构[J].气象,1989,15(5):16-22. |
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| 作者姓名： | 吴兑 |
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| 作者单位： | 广东省热带海洋气象研究所 |
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| 摘 要： | 本文分析了广州1984年小阵雨的雨滴谱分布。指出该地区小阵雨谱型以Ⅲ型谱(多峰谱)居多,不出现Ⅰ型谱(无峰谱)。滴浓度较小而平均尺度较大,最大滴直径达6.5mm。最突出的特点是起始直径较大,小滴明显不足而大滴较多,用指数谱描述不甚理想。 此外发现,W-I关系较Z-I关系的地区变异小得多;该地小阵雨的W-I,Z-I关系可分别表示为: W=0.0569I~(0.88), Z=345I~(1.39)。
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| 关 键 词： | 广洲地区 小阵雨 微物理结构 |
The micro-structure of rain shower over Guang Zhou area in June of 1984 |
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| Abstract: | In this paper, the drop-size distribution of shower in Guangzhou has been analyzed. The results show that Type 3 spectra appeared with highest frequency and no Type 1 in that area.The average size is larger. The maximum diameter of drops can reach up to 0.5mm . The outstanding features are that the minimum diameter of drops is too large, and there are fc\v small drops but much more larger ones .As a re suit , it is imperfect to describe the spectra with an exponential function. Inaddition, the results reveal the areal difference of W-I relationship is much smaller than that of Z-I relationship. In Guangzhou area, W-I and Z-I relationship of shower are expressed respectively asZ=34511.39W=0.056910.88 |
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