| 卫星资料在云顶粒子尺度特征分析中的应用 |
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| 引用本文： | 刘健 董超华. 卫星资料在云顶粒子尺度特征分析中的应用[J]. 红外与毫米波学报, 2002, 21(2): 124-128 |
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| 作者姓名： | 刘健 董超华 |
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| 作者单位： | 刘健（北京大学大气科学系,北京,100871;国家卫星气象中心,北京,100081）;董超华（国家卫星气象中心,北京,100081） |
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| 基金项目： | 国家重点基础研究基金(批准号G1998040909)资助项目 |
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| 摘 要： | 选取NOAA卫星AVHRR通道3(3.55～3.93μm)观测资料,分析云顶粒子的物理性质,并用地面雨量和雷达观测资料对卫星反演分析结果进行验证.分析结果显示通道3反射率小,云顶粒子尺度大时易产生降水.当云层为单一层次时,通道3的反射率小值区与雷达回波区间具有良好的对应关系,证实了在降水过程中卫星分析云顶粒子尺度结果与雷达观测一致.
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| 关 键 词： | 云顶粒子 反射率 亮度温度. |
| 收稿时间： | 2001-11-15 |
| 修稿时间： | 2001-11-15 |
USING SATELLITE DATA TO ANALYZE PROPERTIES OF CLOUD PARTICLES SIZE ON THE TOP OF CLOUD |
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| Abstract: | Physical properties of cloud particles on the top of cloud were analyzed by NOAA/AVHRR channel 3(3.55～3.93μm) data. Radar and precipitation data were used to validate the analysis results. It was showed that clouds with smaller reflectivity at channel 3 and with bigger size were easy to rain. It was found that there was good corresponding relationship between small reflectivity at channel 3 and radar echo when cloud is a single layer. It was testified that the result of size analyzed from satellite was the same as that from radar data during precipitation. |
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| Keywords: | cloud particles on the top reflectivity brightness temperature |
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