| 近年天津地区冰雹和雷暴天气特征研究 |
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| 引用本文： | 宋薇,靳瑞军,孟辉,郭晓军.近年天津地区冰雹和雷暴天气特征研究[J].气候与环境研究,2012,17(6):919-924. |
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| 作者姓名： | 宋薇 靳瑞军 孟辉 郭晓军 |
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| 作者单位： | 1. 天津市人工影响天气办公室,天津300074;兰州大学半干旱气候变化教育部重点实验室,兰州730000
2. 天津市人工影响天气办公室,天津,300074 |
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| 基金项目： | 中国气象局中国云雾物理重点开放实验室开放课题2009Z00310, 公益性行业(气象)科研专项经费GYHY200806001, 兰州大学半干旱气候变化教育部重点实验室开放基金, 兰州大学中央高校基本科研业务费专项资金 |
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| 摘 要： | 基于天津地区13个观测站的1990～2009年冰雹资料和2000～2009年雷暴资料,分析了近年来天津地区降雹、雷暴的时空分布特点,并总结出当前雷暴云移动路径,以及引发此类天气的主要影响系统.主要结论为:(1)近20年天津地区年平均雹日是12.6 d,北部蓟县为冰雹天气多发区,冰雹天气常出现在春夏秋季节,集中出现在每年3～9月;(2)全市13个测站在13:00(北京时间,下同)到20:00之间雷暴的发生概率较大,且西北路径,西南路径的雷暴云出现频率较高,占到了65.2％;(3)引发天津地区冰雹及雷暴天气的主要影响系统为高空冷涡和高空槽,所占比例为49.54％和43.12％.
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| 关 键 词： | 冰雹 雷暴 移动路径 影响系统 |
| 收稿时间： | 2012/8/10 0:00:00 |
| 修稿时间： | 2012/9/20 0:00:00 |
Analysis of Hailstone and Thunderstorm Characteristics in Tianjin during Recent Years |
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| SONG Wei,JIN Ruijun,MENG Hui and GUO Xiaojun.Analysis of Hailstone and Thunderstorm Characteristics in Tianjin during Recent Years[J].Climatic and Environmental Research,2012,17(6):919-924. |
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| Authors: | SONG Wei JIN Ruijun MENG Hui and GUO Xiaojun |
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| Institution: | 1 Tianjin Weather Modification Office, Tianjin 300074;2 Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou University, Lanzhou 730000;1 Tianjin Weather Modification Office, Tianjin 300074;2 Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou University, Lanzhou 730000;1 Tianjin Weather Modification Office, Tianjin 300074;2 Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou University, Lanzhou 730000;1 Tianjin Weather Modification Office, Tianjin 300074;2 Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou University, Lanzhou 730000 |
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| Abstract: | Using hailstone and thunderstorm data from 13 meteorological observation stations, this article analyzes the spatial and temporal distribution characteristics of hailstones and thunderstorms in Tianjin and determines the routes of thunderstorm clouds and influence systems. The results showed that: (1) The annual mean number of hailstone-days was 12.6 d during the most recent 20 years, and Jixian district had the most hailstone-days. Hailstone weather often appeared in spring, summer, and autumn, and was concentrated from March to September. (2) The thunderstorm emergence probability was high from 1300 LST to 2000 LST. Those thunderclouds which emerged in the northwest and southwest had the highest frequency, with a total proportion of 65.2%. (3) The primary influence systems that could cause hailstones and thunderstorms in Tianjin were high-level vortices and upper troughs, with proportions of 49.54% and 43.12%, respectively. |
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| Keywords: | Hailstone Thunderstorm Moving routes Influence system |
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