2004-2011年北京地区气溶胶直接辐射强迫反演

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• 作者：Chongshui GongJinyuan XinShigong WangYuesi WangPucai WangLili WangPei Li
• 会议时间：2013-10-23
• 关键词：气溶胶 ; 直接辐射 ; 强迫反演 ; 季节变化
• 作者单位：Chongshui Gong,Shigong Wang,Pei Li(Key Laboratory for Semi-Arid Climate Change of the Ministry of Education,College of AtmosphericSciences,Lanzhou University,Lanzhou,730000,China)Jinyuan Xin,Yuesi Wang,Pucai Wang,Lili Wang(State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry(LAPC),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,100029,China)
• 母体文献：第30届中国气象学会年会论文集
• 会议名称：第30届中国气象学会年会
• 会议地点：南京
• 主办单位：中国气象学会
• 语种：chi
• 分类号：X51;P46

摘要

Ground-based and satellite observations indicated heavy anthropogenic absorbingaerosol loading overthe Beijing metropolitanarea from 2004 to 2011.The annualmeans of the aerosoloptical depth (AOD),Angstrom exponent,single scatteringalbedo (SSA) and aerosol direct radiative forcing were 0.40±0.04,1.28±0.07,0.89±0.09and0.093±0.032W/mzW/mzat 550nm in Beijing City,0.51±0.05,1.16±0.06,0.87±0.09,and 0.104±0.024in the Xianghe suburb,and 0.20±0.02,0.99±0.05,0.88±0.08,and0.045±0.018W/m`in the background readings, respectively.aerosol optical and radiative characteristics had strong seasonal variations inregion,and there were large differences wereapparent from the levels in the cityto the background levels.The aerosol direct radiative forcing in the region washighest in summer:0.115±0.074W/mz in Bei jing City,0.142±0.045W/mz in the suburband 0.071±0.O1W/m`in the background readings. The annual aerosol direct radiativeforcing trend showed a slight decline in Beijing City,while the trend in thebackground levels rose in recent years.