| 台风“温比亚”影响山东期间GPM资料的降水分析 |
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| 引用本文： | 李芳,李南,万瑜.台风“温比亚”影响山东期间GPM资料的降水分析[J].山东气象,2020,40(4):69-76. |
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| 作者姓名： | 李芳 李南 万瑜 |
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| 作者单位： | （1.济宁市气象局，山东 济宁 272000； 2.南京信息工程大学，江苏 南京 210044； 3.新疆维吾尔自治区气象台，新疆 乌鲁木齐 830002〖JP〗） |
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| 基金项目： | 国家自然科学基金项目（41675029）；山东省气象局科研项目（2017SDQN15，2019sdqxm19） |
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| 摘 要： | 为研究GPM（Global Precipitation Measurement）资料对台风雨带降水结构的探测能力，利用GPM卫星资料、地基雷达资料和地面降水实况对2018 年第18号台风“温比亚”影响山东期间的降水结构进行分析。结果表明：台风螺旋雨带造成的降水远大于台风外围云系产生的降水；台风螺旋雨带的雨顶高度大于外围云系的雨顶高度，基本在7 km以上，最大雨顶高度达到15 km；台风螺旋雨带及其外围云系都以层云和对流云降水为主，其中螺旋雨带中对流云降水所占比例高于外围云系，对流云的平均降水率是层云的3倍左右，对流云降水对应近地面降水率和雨顶高度的大值区；台风螺旋雨带的降水柱与外围云系中的降水柱相比，具有数量多、密度大、高度高的特点，这与台风螺旋雨带中对流发展旺盛有关；2A DPR数据产品对降水估测具有较好的指示意义。研究结果为用GPM产品估测降水结构提供了参考依据。
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| 关 键 词： | 全球降水测量 台风“温比亚” 降水结构 降水分析 螺旋雨带 雨顶高度 降水率 |
| 收稿时间： | 2020/9/18 0:00:00 |
| 修稿时间： | 2020/11/7 0:00:00 |
GPM data analysis of precipitation in Shandong as affected by Typhoon RUMBIA |
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| LI Fang,LI Nan,WAN Yu.GPM data analysis of precipitation in Shandong as affected by Typhoon RUMBIA[J].Journal of Shandong Meteorology,2020,40(4):69-76. |
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| Authors: | LI Fang LI Nan WAN Yu |
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| Institution: | (1. Jining Meteorological Bureau, Jining 272000, China; 2. Nanjing University of Information Science & Technology, Nanjing 210044, China; 3. Xinjiang Uygur Autonomous Region Meteorological Observatory, Urumqi 830002, China) |
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| Abstract: | In order to study the ability of GPM (Global Precipitation Measurement) data to detect the precipitation structure of typhoon, the GPM satellite data, ground-based radar data, and surface precipitation observations are used to analyze the precipitation structure of Typhoon RUMBIA (2018) as it affects Shandong. The results are listed as follows. 1) The precipitation caused by the spiral rainband of the typhoon is much larger than that by the peripheral cloud system. 2) The rain top height of the spiral rainband of the typhoon is greater than that of the peripheral cloud system. The rain top height is basically above 7 km and the maximum reaches 15 km. 3) The spiral rainband and peripheral cloud system of the typhoon are dominated by precipitation of stratus clouds and convective clouds. The precipitation ratio of convective clouds in the spiral rainband is higher than that in the peripheral cloud system, the average precipitation rate of convective clouds is three times more than that of stratus clouds, and the precipitation of convective clouds corresponds to the high-value area of near-surface precipitation rate and rain top height. 4) Compared with the precipitation column in the peripheral cloud system of the typhoon, the precipitation column in the spiral rainband is characterized by large number, high density, and great height, which is related to the strong convection development in the spiral rainband of the typhoon. 5) The 2A-DPR data products have a good indication for predicting precipitation. The results provide a reference for predicting precipitation structure with GPM products. |
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| Keywords: | Global Precipitation Measurement (GPM) Typhoon RUMBIA precipitation structure precipitation analysis spiral rainband rain top height precipitation rate |
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