地理科学 ›› 2008, Vol. 28 ›› Issue (3): 396-401.doi: 10.13249/j.cnki.sgs.2008.03.396

• 论文 • 上一篇    下一篇

复杂地形对城市空气污染影响的数值试验研究

刘宁微, 王扬锋, 马雁军, 洪也   

  1. 中国气象局沈阳大气环境研究所, 辽宁 沈阳 110016
  • 收稿日期:2007-06-01 修回日期:2007-10-09 出版日期:2008-05-20 发布日期:2008-05-20
  • 通讯作者: 马雁军,女,研究员。E-mail: mayanjun0917@163.com E-mail:mayanjun0917@163.com
  • 作者简介:刘宁微(1977- ),女,辽宁沈阳人,硕士研究生,助理研究员,研究方向为大气环境质量。E-mail: liuningwei@sina.com
  • 基金资助:
    国家自然科学基金(40575067)、科技部公益性研究专项(2003DIB3J121,2005D1B2J111)资助。

Simulation on Influence of Complex Terrain on Urban Air Pollution

LIU Ning-Wei, WANG Yang-Feng, MA Yan-Jun, HONG Ye   

  1. Institute of Atmospheric Environment, China Meteorological Administration, Shenyang, Liaoning 110016
  • Received:2007-06-01 Revised:2007-10-09 Online:2008-05-20 Published:2008-05-20

摘要: 以辽宁为例,通过改变其中部地区的地形高度,利用新一代空气质量模式系统Model-3对2006年11月24日的一次污染过程中气象场和污染物浓度场的分布进行了敏感性试验。结果表明,地形的存在会导致风的辐合,风速降低,逆温增强,这些都构成了不利于污染物输送及扩散的因素,容易造成污染物的堆积和滞留,从而使污染物浓度较高

Abstract: In order to study the influence of complex terrain on urban air pollution, a sensitive test is made by using the new generation air quality models system Models-3 by means of modifying the terrain height of central Liaoning Province to research the meteorology and concentration filed in the course of pollution on 24 November 2006. The results show that the complex terrain will make the wind convergent, the wind speed diminish and the inversion temperature strengthen, all of which form the negative factors for polluants to be transported and dispers, causing the pollutant piles and resorts, therefore brings high concentration of the pollutant.

中图分类号: 

  • X16