摘要
本文主要使用大气电场监测系统资料，分析了太原市大气电场的日变化和年变化，着重分析了高污染地区大气电场值明显高于其他地区的典型特征。在其他不受污染的陆地区域，晴天电场值维持在＋120V左右，而太原市会达到＋600v以上。分析其原因主要是：太原市大气常年污染较严重，主要为气溶胶状态污染物，有粉尘、烟液滴、雾、降尘、飘尘、悬浮物等，导致大气电导率降低，大气电场强度显著增加。日变化为双峰双谷型，主高值出现在傍晚，次高值出现在午前；主低值出现在清晨，次低值出现在午后，与太阳和人类活动保持较好的一致性。年变化为单峰单谷型，极大值出现在冬季，极小值出现在夏季。
Based on the data of atmospheric electric field, diurnal and annual variation of atmospheric electric field was analyzed in Taiyuan. The typical characteristic of the atmospheric electric field in high-pollution areas is its value is significantly higher than other areas. The value of electric field is at about ＋120V in no pollution area. It is ＋600V in Taiyuan city. The serious pollution in atmosphere in Taiyuan causes it. The aerosol pollutants caused the atmospheric conductivity decreased and electric field intensity increased significantly
出处
《山西气象》
2012年第3期21-26,共6页
Shanxi Meteorological Quarterly
关键词
大气电场
污染地区
特征
Atmospheric electric field, Pollution areas, Characteristics
