Microphysical extrapolation in the problem of inversion of spectral measurements of aerosol optical depth

Abstract

Defining characteristics of the aerosol size distribution from spectral measurements of the aerosol optical depth (AOD) are considered, with allowance for a low information content of the solution in the fine aerosol region. A correction algorithm for AOD inversion results is suggested; it is based on the microphysical extrapolation procedure and allows the contribution of fine aerosols to be taken into account within existing models. This approach is used to solve the inverse problem of solar photometry by the integral distribution method; it is investigated in closed numerical experiments.