| 基于毫米波雷达观测及探空反演的云垂直
结构对比分析 |
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| 引用本文： | 吕珊珊,周青,张勇.基于毫米波雷达观测及探空反演的云垂直
结构对比分析[J].气候与环境研究,2021,26(1):18-30. |
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| 作者姓名： | 吕珊珊 周青 张勇 |
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| 作者单位： | 中国气象局气象探测中心，北京 100081 |
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| 基金项目： | 国家重点研发计划2017YFC1501802、2017YFC1501701，灾害天气国家重点实验室开放课题2016LASW-B15 |
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| 摘 要： | 针对北京南郊观象台的Ka波段毫米波雷达以及L波段探空设备的观测原理和特点,提出了适用于各设备的云垂直结构判定方法,并基于二者2016年12月13日至2017年3月13日长达91 d的时空同步观测数据,结合激光云高仪、葵花8卫星、全天空成像仪等多源辅助数据,对探空与毫米波雷达观测结果(包括云底高、云顶高、云层数等)进行了...
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| 关 键 词： | 毫米波雷达 探空 云垂直结构 对比 分析 |
| 收稿时间： | 2019-08-30 |
Comparison of Cloud Vertical Structure Retrieved from Radiosonde and Millimeter Wave Cloud Radar |
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| Shanshan Lü,Qing ZHOU,Yong ZHANG.Comparison of Cloud Vertical Structure Retrieved from Radiosonde and Millimeter Wave Cloud Radar[J].Climatic and Environmental Research,2021,26(1):18-30. |
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| Authors: | Shanshan Lü Qing ZHOU Yong ZHANG |
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| Institution: | Meteorological Observation Center, China Meteorological Administration, Beijing 100081 |
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| Abstract: | Owing to the synchronizing continuous observation of Ka-band millimeter-wave cloud radar (MMCR), L-band radiosonde, ceilometer, Himawari-8 satellite, and Total Sky Imager (TSI) from 13 December 2016 to 13 March 2017, at Beijing Nanjiao Weather Observatory (BNWO), the cloud vertical structure (CVS, including cloud bottom height, cloud top height, cloud layers, etc.) derived from radiosonde and MMCR is compared, and the causes of observation deviation are analyzed. The results show that cloud top heights observed by MMCR are lower by 422.0 m on average, while cloud base heights are higher by 350.7 m. Generally, there is a good consistency between them. The difference of physical theory, balloon drifting, attenuation of MMCR during precipitation, and the limitations of algorithm for retrieving CVS, among others, are found to be the main causes of the deviation. |
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