Retrieval of biomass buring aerosols with combination of near-UV radiance and near-IR polarization

Carbonaceous aerosol plays an important role not only in climate but also in aerosol study. It is, however, difficult to make models of biomass burning aerosols because their properties are changable due to strongly dependce on the biomaterial itself, and on the stage of burning, and/or transportation process. This work intends to estimate the optical properties of biomass burning aerosols based on the combined use of the satellite data by CAI (Cloud Aerosol Imager) on GOSAT and by POLDER (POLarization and Directionality of Earth's Reflectances) on PARASOL. As a result, aerosol optical thickness (AOT), Ångström exponent, and single scattering albedo (SSA) are retrieved. The retrieved values of AOT and Ångström exponent are partially validated with the ground-based measurements of AERONET.