J4 ›› 2004, Vol. 22 ›› Issue (3): 63-67.

• 论文 • 上一篇    下一篇

兰州市冰雹预报方法研究及系统介绍

王学良,付 朝,乔艳君,段文广   

  1. (兰州市气象局,甘肃兰州 730020)
  • 收稿日期:2004-08-10 修回日期:2004-09-20 出版日期:2004-09-30 发布日期:2004-09-30
  • 作者简介:王学良(1967—),男,陕西宝鸡人,工程师,主要从事短期天气预报工作.E-mail:lzqxt@263.net
  • 基金资助:

    中国科技部社会公益类项目(2002DIB10046)资助

Study on Forecasting Methods of Hail Storm in Lanzhou Cit

 WANG Hua-Liang, FU  Chao, JIAO Yan-Jun, DUAN Wen-An   

  1. (Lanzhou Meteorological Bureau, Lanzhou 730020,Gansu,China
  • Received:2004-08-10 Revised:2004-09-20 Online:2004-09-30 Published:2004-09-30

摘要:

采用近10 a 5~9月天气资料为样本,结合兰州地形、地貌、地理位置以及兰州冰雹时空分布、天气气候等特点,应用高空、地面、数值预报产品,以区域内任一点的冰雹为预报对象,以24 h不漏报为原则,以自动和人机交互结合的方式进行消空条件、入型条件、启动系统、冰雹有无的判别,制作了兰州冰雹天气的短期(短时)预报工具,主要侧重于为人工消雹作业提供预警、预报信息。2004年5月业务试运行中,成功预报2次局地小冰雹,准确率达67%。

关键词: 冰雹, 预报方法, 兰州

Abstract:

:Based on May to September weather cases during recent 10 years, together with the geographic information and the distri-
bution of hail storms weather and climate in Lanzhou,applying the products of the upper and surface observation and the numerical
weather prediction et al.,the weather forecasting methods for hail storms in Lanzhou are formed.The forecasting object is hail storms
at anywhere in the area, the principle is no failed forecast in 24 hours, the identification of the hail storms is according to methods of
the combination of the automation and man-computer interaction. These methods mainly provide the early warning and forecasting
information for hail prevention operation. We successfully forecasted two local hail processes by this operational forecasting system in
May in 2004, and the forecast accuracy reaches about 67%.

Key words: hail storm, forecasting methods, Lanzhou

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