J4 ›› 2007, Vol. 25 ›› Issue (3): 1-9.

• 论文 •    下一篇

中国北方沙尘传输的数值模拟

王雁鹏,陈 岩,殷惠民,李玉武   

  1. 国家环境分析测试中心,北京 100029
  • 收稿日期:2007-06-26 修回日期:2007-08-20 出版日期:2007-09-30 发布日期:2007-09-30
  • 作者简介:王雁鹏(1970 - ) ,男,工程师,从事天气颗粒物和激光雷达监测研究. E-mail: xinpost@sina. com
  • 基金资助:

    国家环境保护总局科技发展计划项目(2002 - Z - 07)资助

Numer ica l S imula tion of Sand - dust Tran sm ission in North China

WANG Yanpeng, CHEN Yan, YIN Huimin,L I Yuwu   

  1. National Research Center for Environm ental Analysis and M easurem ents, Beijing 100029, China
  • Received:2007-06-26 Revised:2007-08-20 Online:2007-09-30 Published:2007-09-30

摘要:

利用PSU /NCAR的非静力中尺度气象预报模式MM5和三维欧拉型区域空气质量模式CAMx建起一套完整的空气质量模拟系统,对2001年春季北方地区的沙尘传输的数值模拟结果表明,该模式对沙尘传输和沙尘浓度分布有较好的模拟能力, TSP模拟值与激光雷达监测结果具有显著的相关性,置信度水平> 99%。蒙古国和内蒙古自治区对北京的贡献率分别为30% ~50%和30% ~60%河北省的贡献率最高可达29%。
 

关键词: 沙尘暴, 传输模式, 数值模拟

Abstract:

Based on the fifth generation PSU /NCAR’s non - hydrostatic mesoscale model (MM5) and comp rehensive air qualitymodel with extensions (CAMx, a 3 - D Eulerian regional air qualitymodel) a air quality simulation system has been comp leted, which is app lied to simulate sandstorm transmission affecting Beijing in North China in sp ring 2001. The results show the system is capable for simulating and p redicting sandstorm transmission and concentration distribution in North China. Significant correlation was found between simulation value of TSP and L idar observation, which confidence levelwas above 99%. The contribution rate ofMongolia, Inner Mongolia and Hebei to dust concentration in Beijing are 30% - 50% , 30% - 60% and under 29% , respectively.

Key words: sandstorm, transportmodel, numerical simulation

中图分类号: