主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2017, Vol. 33 ›› Issue (4): 48-55.doi: 10.3969/j.issn.1673-503X.2017.04.006

• 论文 • 上一篇    下一篇

长春市酸雨变化特征及其影响因素分析

李倩1, 杨旭2, 马梁臣1, 张俊茹3, 孙克敏3, 邢丽元3   

  1. 1. 长春市气象局, 吉林 长春 130051;
    2. 吉林省气象科学研究所, 吉林 长春 130062;
    3. 长春市气象探测中心, 吉林 长春 130062
  • 收稿日期:2016-08-24 修回日期:2016-11-22 出版日期:2017-08-30 发布日期:2017-08-30
  • 作者简介:李倩,女,1986年生,工程师,主要从事短期天气预报研究,E-mail:guangshu521@sina.com。
  • 基金资助:
    吉林省气象局科研课题(2013007)资助。

Characteristics and impact factors of acid rain in Changchun

LI Qian1, YANG Xu2, MA Liang-chen1, ZHANG Jun-ru3, SUN Ke-min3, XING Li-yuan3   

  1. 1. Changchun Meteorological Service, Changchun 130051, China;
    2. Jilin Institute of Meteorological Science, Changchun 130062, China;
    3. Changchun Meteorological Sounding Center, Changchun 130062, China
  • Received:2016-08-24 Revised:2016-11-22 Online:2017-08-30 Published:2017-08-30

摘要: 利用2012-2015年长春市酸雨观测资料和同期气象要素观测资料、探空资料及大气污染物监测资料,对长春市酸雨的变化特征及气象条件对酸雨的影响进行了分析,并研究了大气污染物浓度对酸雨的作用。结果表明:2012-2015年长春市由轻度酸雨区逐渐发展为中度酸雨区,降水pH值呈波动下降的趋势,秋季和冬季降水的pH值低于春季和夏季,降水的电导率K值呈相反的变化态势。长春市区酸雨更易发生在小量级降水中,受偏南风或偏西风影响时,酸雨污染严重;降水pH值随逆温温差和逆温厚度的增大而减小。长春市降水pH值与前一日的SO2和NO2浓度呈显著的负相关关系,可见NO2和SO2浓度对长春市酸雨污染的贡献更大。

关键词: pH值, 逆温, 风向, 大气污染物, 相关分析

Abstract: Based on acid rain and related contemporaneous meteorological sounding and air pollution data observed in Changchun during 2012-2015,the annual and seasonal characteristics of acid rain and their responses to meteorological conditions and pollutant concentrations were investigated.The results show that Changchun city has experienced a transformation from weak to moderate acid rain area during the studied period.The precipitation pH indicates a fluctuant downward trend and is smaller in autumn and winter than that in spring and summer,while K value shows an opposite trend.More specifically,the acid rain is more likely to occur in precipitation for the small magnitude in Changchun city.In addition,the severe acid rain is closely associated with south or west wind and the pH value in precipitation decreases with the increasing temperature difference and thickness of thermal inversion.Besides,a negative correlation between the pH value of rainfall and the SO2 and NO2 concentrations of the previous day is very significant,which suggests the pollution of acid rain in Changchun city is to a large extent attributed to SO2 and NO2 concentrations.

Key words: pH value, Thermal inversion, Wind direct, Air pollutants, Correlation analysis

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