Aerosol scattering characteristics has important meaning for atmospheric radiation and climate research

in order to know scattering properties of aerosol in different relative humidity

on the basis of Mie scattering theory

set up humidity polarization model

simulation analysis on scattering light intensity and linear polarization degree variation in different humidity conditions of three types aerosol particle is carried out.The results show that relative humidity have little impact on aerosol particle scattering intensity

but it affects obviously at range of degree of polarization at range of backward scattering angle 120°

1

50°;simulate on relative humidity and polarization degree of backscattering angle 130° and 140°

and it shows that the degree of polari

zation increases as the humidity increases.Simulation result shows using scattering light polarization characteristic to analyze the relationship of humidity and aerosol scattering characteristics is feasible.