J4 ›› 2006, Vol. 24 ›› Issue (4): 9-15.

• 论文 • 上一篇    下一篇

山东省聊城市冰雹天气气候特征和影响系统

杨晓霞, 王以琳, 李昌义, 肖明静   

  1. 山东省气象科学研究所,山东  济南 250031
  • 收稿日期:2006-06-08 修回日期:2006-08-21 出版日期:2006-12-30 发布日期:2006-12-30
  • 作者简介:杨晓霞,女,山东梁山人,硕士,正研高工,主要从事天气预报和天气动力学研究
  • 基金资助:

    省科委“山东省3级人工影响天气作业指挥系统研究”和!2004年山东省气象局科研课题资助

Climate Characteristic and Influence System of Hail Weather in Liaocheng of Shandong Province

YANG Xiao-xia, WANG Yi-lin, LI Chang-yi, XIAO Ming-jing
  

  1. Shandong Meteorological Institute, Ji’nan 250031, China)
  • Received:2006-06-08 Revised:2006-08-21 Online:2006-12-30 Published:2006-12-30

摘要:

利用1986~2004 年的常规气象观测资料,对聊城地区的冰雹气候特征、产生冰雹天气的大气环流特征和天气系统特征进行了分析研究;研究了聊城冰雹的源地和地理、地形对冰雹天气的作用,结果表明:聊城的冰雹年均2.7 d.最多8 d,主要集中在6~9月,6月最多。其中,聊城南部的冠县降雹最多,东南部的东阿降雹最少;冰雹天气的主要影响系统有5 类,低涡、低槽、横槽、西北气流和副热带高压边缘西南气流,其中,低涡影响降雹最多,中高层西北气流影响次之。聊城的冰雹源地分为2类:移入类和当地生成类。移入聊城的冰雹路径有; 种:西路、西北路和北路;聊城的地理位置和地形特征对冰雹天气的形成具有非常重要的作用。

关键词: 山东聊城, 冰雹, 气候特征, 影响系统, 地理环境

Abstract:

By using the conventional weather observation data during 1986-2004, the climate and atmospheric circulation characteristics and influence systems of hail weather in Liaocheng were analyzed, and the effect of terrain and geography on hail weather was also studied. Results show that the annual mean hail days in Liaocheng were 2.7 days, 8 days at most a year, and hail occurred mainly in April-September, especially in June. The main influence systems of hail weather presented five types of low vortex, trough, transversal trough, northwest current and southwest current at the edge of the subtropical high, and low vortex as well as northwest current in the middle-high level influenced hail weather most. There were three hail paths of west, northwest and north moving to Liaocheng. The geography and the terrain characteristics of the Liaocheng city have extraordinary effect on the formation of hail weather.

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