会议专题

2004-2011年北京地区气溶胶直接辐射强迫反演

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.

气溶胶 直接辐射 强迫反演 季节变化

Chongshui Gong Jinyuan Xin Shigong Wang Yuesi Wang Pucai Wang Lili Wang Pei Li

Key Laboratory for Semi-Arid Climate Change of the Ministry of Education,College of AtmosphericScien State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry(LAPC),Institute

国内会议

第30届中国气象学会年会

南京

中文

1-25

2013-10-23(万方平台首次上网日期,不代表论文的发表时间)