| 高原山地降水的微结构特征 |
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| 引用本文： | 张鸿发,蔡启铭.高原山地降水的微结构特征[J].高原气象,1988(4). |
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| 作者姓名： | 张鸿发 蔡启铭 |
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| 作者单位： | 中国科学院兰州高原大气物理研究所
(张鸿发)，中国科学院兰州高原大气物理研究所(蔡启铭) |
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| 基金项目： | 中国国家自然科学基金委员会(NSF,批准号4860197)，加拿大国际发展研究中心(IRDC,批准号3-P-84-1027-03)支持~~ |
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| 摘 要： | 本文根据高原边缘山地各种类型降水的雨滴谱资料,分析了山地降水出现的频数、降水持续时间和降水云的单体结构。分析指出:不同类型降水的雨滴谱呈上凸和下凹形状偏离。雨强的大小主要取决于滴浓的变化,而与雨滴最大直径关系不大。用Joss谱型因子分析得知高原山地降水的大部分瞬时雨滴谱呈上凸形状。这为雷达测雨的Z-R关系提供了依据。
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| 关 键 词： | 降水 雨滴谱 Z-R关系 |
THE MICROSTRUCTURE FEATURES OF PRECIPITATION OVER MOUNTAIN AREA ALONG PLATEAU BORDER |
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| Zhang Hongfa Cai Qiming.THE MICROSTRUCTURE FEATURES OF PRECIPITATION OVER MOUNTAIN AREA ALONG PLATEAU BORDER[J].Plateau Meteorology,1988(4). |
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| Authors: | Zhang Hongfa Cai Qiming |
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| Abstract: | Based on the raindrop spectrum data of different type precipitation over plateau border, this paper analysed the frequency, the duration of rainfall and the structure of the precipitations cell. The mean spectra for this region are basically the exponential distribution, though there are some deviation with concave or convex shape for individual events.The raininess mainly depends on the concentration of raindrop, and bears no relation to the maximal diameter. The analysis of Joss spectrum parameter indicated that most of the instant raindrop spectra for this region were convex. This provids a base for determining the Z-R relation of radar precipitation detection. |
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| Keywords: | Precipitation Raindrop spectrum Z-R relationship |
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