J4 ›› 2007, Vol. 25 ›› Issue (4): 30-35.

• 论文 • 上一篇    下一篇

新一代天气雷达在河西走廊强对流天气预报中的应用

曹 玲1 ,窦永祥1 ,杨晓玲2 ,牛金龙1   

  1. 1. 甘肃省张掖市气象局,甘肃 张掖 734000; 2. 甘肃省武威市气象局,甘肃 武威 733000
  • 收稿日期:2007-05-20 修回日期:2007-10-15 出版日期:2007-12-31 发布日期:2007-12-31
  • 作者简介:曹玲(1963 - ) ,女,甘肃临泽人,高级工程师,主要从事天气气候研究工作. E - mail: zycaoling88@163. com
  • 基金资助:

    甘肃省气象局2007年重点项目“数值预报释用技术在河西常规要素精细化和灾害性天气落区预报中的应用”资助
     

Aplica tion of New Genera tion Wea ther Radar Da ta in Short - term Foreca st of Strong ConvectiveWea ther

CAO ling1 , DOU Yongxiang1 , YANG Xiaoling2 , N IU J inglong1   

  1. 1. W uweiM eteorological B ureau of Gansu Province, W uwei 733000, China;2. ZhangyeM eteorological B ureau of Gansu Province, Zhangye 734000, China
  • Received:2007-05-20 Revised:2007-10-15 Online:2007-12-31 Published:2007-12-31

摘要:

通过对2006年张掖地区强对流天气的多普勒雷达资料分析,总结了本地强对流天气的雷达带状、块状强度回波特征;分析了强对流天气的中尺度系统中低空急流、暖平流、冷平流、逆风区、垂直风切变的雷达回波特征,将回波进行客观定量化,并引进了稳定度指标,得出具有可操作性的短时预报简明判据。

关键词: 强对流天气, 雷达回波, 短时预报

Abstract:

By analyzing the dopp ler radar data of the strong convective weather p rocesses occurred in Zhangye city in 2006, the intensity characteristics of belt - shaped and block echoes are summarized. Radar echo characteristics of mesoscale system of strong convective weather p rocesses, including low - jet,warm advection, cold advection, contrary wind area and vertical wind shear, are analyzed. The echo features are quantified objectively, and the stability index is introduced. The concise criterion for feasibility short - time forecast is obtained.

Key words: strong convective weather, radar echo, short - term forecast

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