Radiative Forcing of SO_2 and NO_x: A Case Study in Beijing  

作　　者：孙治安 王晓云 曾宪宁 

机构地区：[1]Bureau of Meteorology Research Centre GPO BOX 1289K,Melbourne 3001,Australia [2]Beijing Regional Meteorological Centre Beijing [3]Nanjing University of Information Science and Technology Nanjing 210044

出　　处：《Advances in Atmospheric Sciences》2006年第2期317-322,共6页大气科学进展（英文版）

基　　金：This work was supported by the project of"Research on the Supporting Technology of Atmospheric Environment for the Sustainable Urban Planning"from China Rural Technology Development Center,Beijing Natural Science Foundation(No.8051002);National Natural Science Foundation of China(No.40505002).

摘　　要：A case study was performed in Beijing in 2000 to observe concentrations of SO2 and NOx in the atmosphere and to evaluate their radiative impact. It was found that the concentrations of these gases are usually high in the morning due to a temperature inversion in the boundary layer. The average concentrations obtained from the observations are much higher than those used in the McClatchey reference atmosphere. The radiative impacts of these gases are calculated using a line-by-line radiative transfer model. The results show that the radiative forcing at the surface due to SO2 is 0.0576 W m^-2 and that due to NOx is 0.0032 W m^-2. These figures are almost compatible with that due to CFC11.A case study was performed in Beijing in 2000 to observe concentrations of SO2 and NOx in the atmosphere and to evaluate their radiative impact. It was found that the concentrations of these gases are usually high in the morning due to a temperature inversion in the boundary layer. The average concentrations obtained from the observations are much higher than those used in the McClatchey reference atmosphere. The radiative impacts of these gases are calculated using a line-by-line radiative transfer model. The results show that the radiative forcing at the surface due to SO2 is 0.0576 W m^-2 and that due to NOx is 0.0032 W m^-2. These figures are almost compatible with that due to CFC11.

关 键 词：air pollution radiative forcing gas concentration greenhouse effect 

分 类 号：X831[环境科学与工程—环境工程]