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中国沙漠 ›› 2003, Vol. 23 ›› Issue (5): 560-564.

• 研究论文 • 上一篇    下一篇

乌鲁木齐地区雪和雨对气溶胶湿清除能力的比较研究

李霞1, 杨青1, 吴彦2   

  1. 1. 中国气象局 乌鲁木齐沙漠气象研究所, 新疆 乌鲁木齐 830002;
    2. 新疆环境气象中心, 新疆 乌鲁木齐 830002
  • 收稿日期:2002-09-15 修回日期:2002-10-20 出版日期:2003-10-20 发布日期:2003-10-20
  • 作者简介:李霞(1969-),女(汉族),安徽霍山人,副研究员。主要从事天气气候与环境研究。E-mail:lixia_0991@sina.com
  • 基金资助:
    中国科技部社会公益类研究专项"沙尘暴观测及分级标准研究"项目资助

Comparison of Wet Removal Efficiency Between Snow and Rain to Aerosol Particles in Urumqi Region

LI xia1, YANG Qing1, WU Yan2   

  1. 1. Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
    2. Xinjiang Center of Environmental Meteorology, Urumqi 830002, China
  • Received:2002-09-15 Revised:2002-10-20 Online:2003-10-20 Published:2003-10-20

摘要: 根据2002年乌鲁木齐地区逐日逐时SO2、NO2和PM10粒子浓度监测资料,针对冬季固态降水、夏季液态降水对三种气溶胶颗粒物的湿清除能力进行了统计分析。粗略得出乌鲁木齐地区冬季微量降水日,气溶胶颗粒物浓度呈现增加趋势;而夏季微量降雨能够减小气溶胶颗粒物浓度。超过微量降水量的日子里,在冬季三种颗粒物的浓度明显高于夏季的情形下,每1 mm降雪量对气溶胶的清除率大于夏季每1 mm雨的清除能力。同时拟合结果表明降水日气溶胶浓度的改变量与其前一日气溶胶浓度值存在较好的相关特性。

关键词: 气溶胶浓度, 日平均浓度, 湿清除能力, 乌鲁木齐

Abstract: According to hourly observations to atmospheric aerosol particles concentration of SO2、NO2 and PM10 in 2002,statistics and analysis about the wet removal efficiency of precipitation to the three kinds of aerosols concentration in Winter and in Summer were performed respectively.The result roughly showed that minim precipitation makes air pollution(aerosols concentration) increase in winter and decrease in summer.The wet removal efficiency of 1mm snowfall was higher than that of 1mm rainfall on condition that aerosols particles concentration in summer is evidently higher than that in winter.The variation of aerosol particles concentration in rainy day had apparent relation to the aerosols concentration a day before the rainy day.

Key words: aerosol particles concentration, daily mean concentration, wet removal efficiency, Urumqi City

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