J4 ›› 2008, Vol. 26 ›› Issue (1): 89-94.

• 业务应用技术 • 上一篇    下一篇

兰州新一代天气雷达数据误差来源分析

刘维成,尚大成,张宇飞,姚正楠   

  1. 兰州中心气象台,甘肃 兰州 730020
  • 收稿日期:2007-08-24 修回日期:2008-01-17 出版日期:2008-03-31 发布日期:2008-03-31
  • 作者简介:刘维成(1984 - ) ,男,甘肃镇原人,助理工程师,现从事雷达探测及资料研究工作. E - mail: p lareny@163. com

Error Sources Ana lysis of Lanzhou New Genera tion Wea ther Radar Da ta

 LIU Wei-Cheng, CHANG Da-Cheng, ZHANG Yu-Fei, TAO Zheng-Nan   

  1. Lanzhou CentralM eteorological Observatory, Lanzhou 730020, China
  • Received:2007-08-24 Revised:2008-01-17 Online:2008-03-31 Published:2008-03-31

摘要:

新一代天气雷达目前已经成为对兰州市及周边地区短时强烈天气进行监测的主要手段之一。为了方便资料的处理和分析,提高观测资料准确度,为预报员和科研人员分析资料提供方便,通过对雷达数据前端生成和后端处理传输2个过程的分析,找出兰州新一代多普勒天气雷达数据误差的来源,并进行分析,发现地物回波、雷达天线增益、测量距离等因素和数据插值、坐标转换、远距离多终端传输等因素分别是前端数据产生过程中和后端数据处理传输过程中数据误差的主要来源。

关键词: 天气雷达, 数据误差, 分析

Abstract:

New GenerationWeather Radar has become a chief means of monitoring the severe convective weather events occurred in Lanzhou and its surrounding areas. This paper analyzed data error sources in radar front - end and back - end p rocessing. Itwas found that clutter, radar antenna gain, monitoring distance and data interpolation, coordinate conversion, remote transmission to several ter2 minals are mainly error sources in radar front - end and back - end p rocessing, respectively.

Key words: weather radar, error source, analysis

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