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干旱区地理 ›› 2018, Vol. 41 ›› Issue (3): 601-607.

• 生态与环境演变 • 上一篇    下一篇

气象因子对乌鲁木齐市一次重污染天气过程影响研究

葛欢欢1,2, 武胜利1,2, 吕婷1,2, 李京龙1,2, 夏诗书1,2, 夏黎1,2   

  1. 1 新疆师范大学地理科学与旅游学院, 新疆 乌鲁木齐 830054;
    2 新疆干旱区湖泊环境与资源重点实验室/新疆师范大学, 新疆 乌鲁木齐 830054
  • 收稿日期:2018-01-15 修回日期:2018-03-25 出版日期:2018-05-25
  • 通讯作者: 武胜利(1977-),男,河南西平县人,教授,博士,主要从事干旱区环境演变与灾害防治研究.E-mail:wushengli77@126.com
  • 作者简介:葛欢欢(1993-),女,新疆乌鲁木齐市人,在读硕士,研究方向为干旱区环境演变与灾害防治.E-mail:761332765@qq.com
  • 基金资助:
    乌鲁木齐县旅游业"十三五"发展规划及乌鲁木齐县文化产业"十三五"发展规划

Influence of meteorological factors on the process of heavy pollution in Urumqi City

GE Huan-huan1,2, WU Sheng-li1,2, LV Ting1,2, LI Jing-long1,2, XIA shi-Shu1,2, XIA Li1,2   

  1. 1 School of Geography and Tourism, Xinjiang Normal University, Urumqi 830054, Xinjiang, China;
    2 Xinjiang Key Laboratory of Lake Environment and Resources, Xinjiang Normal University, Urumqi 830054, Xinjiang, China
  • Received:2018-01-15 Revised:2018-03-25 Online:2018-05-25

摘要: 利用大气质量的观测资料和气象要素的数据,详细分析了2015年冬季乌鲁木齐市一次重污染天气的主要气象因子和空气质量特征。研究结果表明:在污染过程中,风速的变化趋势:减小-增大-减小(平均风速0.9~2.5 m·s-1);风向的转化趋势:东南风-东北风-西北风-西南风-东北风;湿度增大-减小-增大;大气混合层厚度的变化趋势:降低-升高-降低。同时,通过SPSS12.0分析了空气污染前后风速,湿度和PM2.5质量浓度的相关性。PM2.5质量浓度与风速呈显著负相关,与湿度呈正相关。风速与PM2.5质量浓度间通过了显著性水平为0.01的相关性检验。表明乌鲁木齐市的气象因子(风速)对当地大气污染影响十分明显。

关键词: 气象因子, 污染, 影响, 乌鲁木齐市

Abstract: Through hourly observation data of the air quality and meteorological factors,the characteristics of air quality and main meteorological factors for a typical air pollution process in Urumqi City,Xinjiang,China in the winter of 2015 were analyzed in detail. In the process of this pollution event, the wind speed was changed in the pattern from decrease to increase to decrease(with the mean wind speed of 0.9-2.5 m·s-1). The wind direction was shifted from southeast to northeast to northwest to southwest and to northeast. The humidity was firstly increased and then decreased and increased again. The thickness of the atmospheric mixed layer was decreased and then increased and then decreased again. In addition, the correlation between wind speed, humidity and PM2.5 mass concentration was also tested. There were a negative correlation between wind speed and PM2.5 mass concentration and a positive correlation between humidity and PM2.5 mass concentration. They all passed the correlation test of 0.01 significant level. It shows that the meteorological factors(wind speed) in Urumqi City have a very significant impact on the local air pollution.

Key words: meteorological factor, pollution, affect, Urumqi

中图分类号: 

  • X51