兰州城区冬季大气气溶胶粒子谱的反演研究

A Study on Remote-Sensing Inversion of Atmospheric Aerosol Particle Size Distributions of Lanzhou City Winter

从实测的兰州城市冬季大气气溶胶多波段光学厚度资料出发,应用消光法反演了大气柱气溶胶粒子谱,并对反演程序的可行性、反演结果的可靠性进行了分析讨论。结果表明,反演出的大气柱气溶胶粒子谱分布都为三峰型分布。通过正算方法计算出的光学厚度值检验反演方法,检验结果说明,反演程序是可行的,结果是可靠的。

The measured data of the aerosol optical depths in Lanzhou city winter are used to invert the columnar aerosol size distributions by inversion method. Moreover, the validity of inversion programs and the dependability of inverted results are demonstrated. Results show that the inverted columnar aerosol size distributions are all characterized by three peak modes. The optical depths calculated by directly-calculation method are used to check inversion method. Results show that the inversion programs is valid and the inverted results is correct.