J4 ›› 2009, Vol. 27 ›› Issue (2): 181-184.

• 论文 • 上一篇    下一篇

不平衡场在甘肃平凉市强对流天气预报中的释用

王若升樊晓春   

  1. (甘肃省平凉市气象局,甘肃平凉744000)
  • 收稿日期:2009-03-02 修回日期:2009-05-04 出版日期:2009-06-30 发布日期:2009-06-30
  • 作者简介:王若升(1974-),男,甘肃静宁人,高级工程师,现从事天气预报和系统开发工作.E-mai:l plwrs@ 163. com

Interpretation ofUnbalanced Field in Forecast of SevereConvectiveW eather in Pingliang ofGansu Province

WANG Ruosheng,FAN Xiaochun   

  1. (PingliangMeteorologicalBureau ofGansu Province, Pingliang744000, China)
  • Received:2009-03-02 Revised:2009-05-04 Online:2009-06-30 Published:2009-06-30

摘要:

通过对平凉市强对流天气发生发展的高空环流形势进行合成分析,归纳出平凉市强对流天气的500 hPa典型场模型和环境场特征;利用T213数值预报格点资料对2008年6~9月逐日资料计算不平衡场,探讨了不平衡场与平凉市强对流天气的对应关系,通过实例分析和业务应用,该释用方法取得了较好的业务效果。

关键词: 强对流天气, 合成分析, 不平衡场

Abstract:

Abstract:Based on the composite analysis of high-level circulation under the situation of severe convective weather in Pingliang of Gansu Province, the typical fieldmodel and environmental field feature at the level of 500 hPa in severe convective weather process were summarized.Meanwhile, the daily unbalanced fields from June to September in 2008 were caculated by usingT213 mathematical forecastproducts, and the relationship between the unbalanced field and strong convective weatherwas discussed. It showed that dynamical interpretation technique has obviously increased the capability ofobjective forecast for severe convectiveweatherevents in actual operation application.

Key words: severe convectiveweather, synthetic analysis, unbalanced field

中图分类号: