| 毫米波雷达测云个例研究 |
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| 引用本文： | 樊雅文,黄兴友,李锋.毫米波雷达测云个例研究[J].南京气象学院学报,2013(5):554-559. |
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| 作者姓名： | 樊雅文 黄兴友 李锋 |
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| 作者单位： | [1]南京信息工程大学中国气象局气溶胶与云降水重点开放实验室,江苏南京210044 [2]中国气象局气象探测中心,北京100081 |
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| 基金项目： | 国家高技术研究发展计划（863计划）资助项目（2007AA061901） |
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| 摘 要： | 云参数是影响降水和大气辐射过程的重要因子，但对云参数的遥感探测存在许多困难。利用35GHz的毫米波雷达进行云探测，并进行云参数反演研究，反演了云水含量、冰水含量和云滴有效直径的垂直廓线，得到了6类云况的垂直分布。结果表明：1）不同类型的云具有不同的云参数分布；2）在低于-15dBz的非降水云情况下，反演的云水含量及云滴有效直径较可靠；3）雷达探测的线性退偏振比因子，可以用于判别云中的过冷却水和冰晶，有助于更好了解云的宏微观特征。
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| 关 键 词： | 毫米波测云雷达 雷达反射率因子 云参量 |
A case study on cloud measurement with a 35 GHz millimeter-wave cloud radar |
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| FAN Ya-wen,HUANG Xing-you,LI Feng.A case study on cloud measurement with a 35 GHz millimeter-wave cloud radar[J].Journal of Nanjing Institute of Meteorology,2013(5):554-559. |
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| Authors: | FAN Ya-wen HUANG Xing-you LI Feng |
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| Institution: | 1. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, NUIST, Nanjing 210044, China 2. Meteorological Observation Centre, China Meteorological Administration, Beijing 100081, China) |
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| Abstract: | Cloud variables are important factors influencing atmospheric radiation process and precipita- tion, but it is still difficult to detect cloud variables by means of remote sensing. This paper detects and retrieves cloud variables by using a 35 GHz cloud radar. Variables of six types of cloud as cloud liquid- water content, ice-water content and equivalent diameter profiles are retrieved and analyzed. Result shows that： 1 ） Different type of cloud has different variable distribution ; 2） The retrieved variables are acceptable for cases of non-precipitation cloud with echo intensity below -15 dBz ;3 ）Linear depolari- zation ratio is a good index for discriminating super-cooled water droplets and ice crystals, and is hence helpful to understand macro- and micro-feathers of cloud. |
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| Keywords: | millimeter-wave Cloud radar radar reflectivity factor cloud variables |
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