Temperature and concentration effect on optical characteristics of H2SO4 aerosol

Based on Mie theory and HITRAN2008 data, the scattering efficiency and phase function of H2SO4 aerosol at 10m and 0.87m wavelengths were analyzed when the aerosol radius was 2m and 5m. The results show that the cooling effect of H2SO4 particle is stronger at 10m wavelength with higher temperature under same H2SO4/H2O, while there is almost no effect at 0.87m wavelength. The results also show that the cooling effect of H2SO4 particle is weaker when the scattering angles are larger than 173 degree at 0.87m wavelength with higher H2SO4/H2O under the same temperature.