摘要
根据2000年污染源排放资料,利用中尺度气象模式和欧拉输送模式模拟了中国地区硫酸盐气溶胶的分布,估计了硫酸盐气溶胶对地面—对流层大气系统造成的直接辐射强迫,并估算了间接辐射强迫。结果表明,硫酸盐的分布集中在华中、华东和西南地区;硫酸盐的柱含量、辐射强迫都具有明显的季节变化特征,直接辐射强迫表现为冬春季强,夏秋季较弱,全年平均辐射强迫值为-0.71W·m-2;间接辐射强迫表现为夏秋季强,冬春季弱,全年平均值为-0.48W·m-2。
Based on SO(2) emission data of China in 2000, the meso-scale meteorological model and Eulerian transport model were applied to simulate the distribution of sulphate aerosol.The direct and indirect radiative forcing of sulphate aerosol were further estimated. The results show that the column concentrations of sulfate aerosol have significant spatial and seasonal variations. The sulfate aerosol is mainly distributed over Central, East and Southwest China, so do the direct and indirect radiative forcing. The direct forcing is strong in winter and spring, and weak in summer and autumn. The annual mean value reaches -0.71 W·m^(-2). For indirect forcing, it is strong in summer and autumn and weak in winter and spring. The annual mean value is -0.48 W·m^(-2).
出处
《高原气象》
CSCD
北大核心
2004年第5期612-619,共8页
Plateau Meteorology
基金
南京气象学院气象灾害与环境变化重点实验室
中国科学院大气物理研究所大气物理与大气化学开放实验室共同资助
