山西省大气气溶胶光学厚度变化特征研究  

Research on variations characteristics of atmospheric aerosol optical thickness in recent 40 years in Shanxi province

作　　者：李明明 汪文雅 陈玲 王雁 闫世明 

机构地区：[1]山西省气象科学研究所,山西太原030002

出　　处：《山西气象》2016年第4期32-36,43,共6页Shanxi Meteorological Quarterly

摘　　要：山西省气溶胶的直接观测资料较为稀少，只有3个气象观测站配备太阳光度计来观测气溶胶光学厚度。为了比较全面认识山西省大气气溶胶的分布和多年的变化特征，本次研究利用邱金桓等（2001）提出的从地面气象能见度和水汽压信息反演大气柱气溶胶光学厚度的参数化方法，同时对能见度资料进行了均一化处理，反演分析了1972年1月1日至2012年12月31日山西省34个有代表性的城市的气象观测台站的大气气溶胶光学厚度变化特征。结果表明：山西省大气气溶胶光学厚度以山西西南部的值较大，另外山西中部的值也偏大；40年来山西省大气气溶胶光学厚度总体呈波动增加趋势，其中1972—2002年，AOD呈持续波动增加趋势，但增加速度相对平缓；2003—2012年期间AOD又呈持续波动减少趋势，2006年后减少趋势很明显；各月AOD总体上呈波动变化趋势。Shanxi aerosol direct observation data is relatively scarce, only three meteorological stations equipped with solar photometer to observe the aerosol optical thickness. In order to comprehensively understand the distribution of atmospheric aerosols in Shanxi Province and the characteristics of many years of change, this paper uses the parameterization method proposed by QiuJinhuan et al.（2001） to invert aerial thickness of atmospheric aerosol from ground meteorological visibility and vapor pressure information. The information of the atmospheric aerosol optical characteristics of the representative meteorological observation stations in 34 representative cities in Shanxi Province from January 1, 1972 to December 31, 2012 was analyzed in this paper. The results show that the aerosol thickness ot aerosol in Shanxi Province is larger than that in the southwest of Shanxi province, and the value of aerial aerosol in Shanxi Province is increasing in the past 40 years. In the past 1972 - 2000, The trend of increasing volatility is increasing, but the rate of increase is relatively fiat. During the period from 2003 to 2012, the AOD has been decreasing trend, and the trend of decreasing after 2006 is obvious. The monthly AOD fluctuates on the whole.

关 键 词：气溶胶 光学厚度 变化特征 

分 类 号：P618.110.2[天文地球—矿床学]