气象与环境学报Issue(3):43-49,7.DOI:10.3969/j.issn.1673-503X.2015.03.007
沈阳大气气溶胶光学特性及其影响因子
Aerosol optical characteristics and its influencing factor over Shenyang
摘要
Abstract
Using the aerosol data measured by CE-3 1 8 sun photometer in Shenyang atmospheric composition moni-toring station during March to October of 2010,the aerosol optical depth (AOD),Ångström exponent and other optical indexes were calculated,and the aerosol optical properties and their influencing factorswere also analyzed combining with meteorological data.The results show that the AOD is higher during periods of March to June and September to October while it is lower in August.There is a negative correlation relationship between AOD and wind speed except in April and August.Trends of AOD and PM (particulate matter)mass concentration are simi-lar;the absolute amount of daily mean AOD anomaly,change rate are in a positive correlation with intensity of pre-cipitation,while visibility is in a negative correlation with AOD.Visibility calculated by aerosol turbidity coeffi-cient is consistent with observed visibility during April to June,while visibility calculated by aerosol elevation level is less than observed visibility as a whole.关键词
气溶胶光学厚度/波长指数/能见度Key words
Aerosol optical depth (AOD)/Ångström exponent/Visibility分类
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赵胡笳,马雁军,王扬锋,朱轶明..沈阳大气气溶胶光学特性及其影响因子[J].气象与环境学报,2015,(3):43-49,7.基金项目
中国气象局沈阳大气环境研究所项目“辽宁省大气气溶胶光学特征变化与分析”(2014IAE-CMA05)和辽宁省科技厅项目“辽宁省大气灰霾的污染形成机制及预报预警技术研究”(2013229031)共同资助。 ()