LUO Rui-ting,WANG Shuo-fu,YIN Mei-xiang.Analysis of Causes of Guangdong's Thunderstorm and Hail Happened on April 17, 2011[J].Journal of Chengdu University of Information Technology,2017,(02):220-225.[doi:10.16836/j.cnki.jcuit.2017.02.017]
“4.17”广东雷雨大风冰雹天气成因分析
- Title:
- Analysis of Causes of Guangdong's Thunderstorm and Hail Happened on April 17, 2011
- 文章编号:
- 2096-1618(2017)02-0220-06
- Keywords:
- synoptics; sever convection; thunderstorm; hail; circulation characteristic; physical diagnosis
- 分类号:
- P446
- 文献标志码:
- A
- 摘要:
- 为进一步提高强对流天气的预报水平,利用NCEP的1°×1°再分析资料及气象常规资料,对广东2011年4月17日雷雨大风冰雹过程的天气形势、物理因子及中尺度系统进行综合分析,试图从多角度研究此次强对流天气成因。研究表明:高空槽、中低层切变线及地面冷锋是此次强对流天气的主要影响系统,急流作为暖湿气流的载体,为强对流的产生提供充足的水汽与能量条件,冷空气与高能不稳定的暖空气交汇,是触发不稳定能量释放的机制; 大喇叭形的珠江口及地形摩擦作用使大量来自海洋的水汽在珠江口辐合上升,使强对流得以维持; 高空辐散与低空的辐合的配置及较强的环境风垂直切变,为雷暴的形成和维持提供非常有利的动力条件,对雷暴单体的形成具有重要作用; 同时,雷达图的弓状回波,后侧入流缺口等特征对冰雹落区和降雹时间的预报有很好的指示意义。
- Abstract:
- Using NCEP 1°×1° reanalysis data and conventional meteorological data, the circulation, physical factors and mesoscale system of thunderstorm in guangdong province on April 17, 2011 are analyzed. By the analysis we try to reveal the causes of thunderstorm from the multiple perspectives. The research showed that the main influencing system of thunderstorm is upper trough, the low level shear line and the cold frontThe warm vapor with high moisture carried by the jet provides sufficient water vapor and energy he cold mass entered the unstable warm mass with high moisture is the mechanism to release the unstable energy.The large trumpet-shaped Pearl River estuary and the topography friction caused a large amount of water vapor from the ocean to converge at the estuary of the Pearl River to maintain strong convection. The structure of the upper divergence, the lower level convergence and forceful vertical shear of environment wind, these conditions provided the favorable dynamic condition to the formation and maintaining of the thunderstorm, which plays an important role in the formation of rcell thunderstorms.At the same time, Doppler weather radar offers a good reference to estimate, the characteristic of Bow Echo and rear inflow notch are good meaning for forecasting falling area and time of hail from radar.
参考文献/References:
[1] 朱乾根,林锦瑞,寿绍文,等.天气学原理和方法[M].北京:气象出版社,2007:401-461.
[2] 蔡义勇,王宏,余永江.福建省冰雹时空分布与天气气候特征分析[J].自然灾害学报,2009,18(4):43-48.
[3] 闵晶晶,曹晓钟,段宇辉,等.近30年京津冀地区冰雹的气候特征和突变分析[J].气象,2012,38(2):189-196.
[4] 顾光芹,史印山,池俊成,等.河北省冰雹气候特征及其与环流异常的关系[J].高原气象,2011,30(4):1132-1138.
[5] 李怀宇,何如意,胡胜,等.近10年广东冰雹的统计特征及天气形势[J].气象科技,2015,43(2):261-269.
[6] 郑媛媛,姚晨,郝莹,等.不同类型大尺度环流背景下强对流天气的短时临近预报预警研究[J].气象,2011,37(7):795-801.
[7] 许新田,王楠,刘瑞芳,等.2006年陕西两次强对流冰雹天气过程的对比分析[J].高原气象,2010,29(2):447-460.
[8] 许爱华,张瑛,刘献耀.江西“暖区”强对流天气的热力和动力条件诊断分析[J].气象,2001,27(5):30-34.
[9] 苏永玲,何立富,巩远发,等.京津冀地区强对流时空分布与天气学特征分析[J].气象,2011,37(2):177-184.
[10] 丁一汇,章名立,李鸿洲,等.暴雨和强对流天气发生条件的比较分析[J].大气科学,1981,5(4):388-397.
[11] 俞小鼎,郑媛媛,廖玉芳,等.一次伴随强烈龙卷的强降水超级单体风暴研究[J].大气科学,2008,32(3):508-522.
[12] 俞小鼎,周小刚,王秀明.雷暴与强对流临近天气预报技术进展[J].气象学报,2012,70(3):311-337.
[13] 郑永光,张小玲,周庆亮,等.强对流天气短时临近预报业务技术进展与挑战[J].气象,2010,36(7):33-42.
[14] 陈晓燕,付琼,岑启林,等.黔西南州一次分裂型超级单体风暴环境条件和回波结构分析[J].气象,2011,37(4):423-431.
[15] 夏丽花,冯晋勤,黄美金,等.一次强对流天气过程的成因分析[J].气象,2006,32(7):110-114.
[16] 张腾飞,段旭,鲁亚斌,等.云南一次强对流冰雹过程的环流及雷达回波特征分析[J].高原气象,2006,25(3):531-538.
[17] 吴芳芳,俞小鼎,张志刚,等.苏北地区超级单体风暴环境条件与雷达回波特征[J].气象学报,2013,71(2):209-227.
[18] 马禹,王旭,郭江勇.新疆系统性冰雹天气过程的环流形势及卫星云图特征分析[J].高原气象,2004,23(6):787-794.
[19] 漆梁波.高分辨率数值模式在强对流天气预警中的业务运用进展[J].气象.2015,41(6):661-673.
[20] 王秀明,钟青,韩慎友.一次冰雹天气强对流(雹)云演变及超级单体结构的个例模拟研究[J].高原气象,2009,28(2):352-365.
[21] 张玲,张艳玲,陆汉城,等.不稳定能量参数在一次强对流天气数值模拟中的应用[J].南京气象学院学报,2008,31(2):192-199.
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备注/Memo
收稿日期:2016-09-21 基金项目:广东省气象局资助项目(2016B39)