Remote sensing of aerosol optical properties using multi-wavelength and multi-pixel information over the ocean
石崇（Dr. SHI Chong）
The IPCC has identified aerosols as among the most uncertainty factors to radiative forcing. Since the ocean covers more than 70% of the Earth’s surface, it is indispensable to estimate the aerosol loading over the ocean. Even though the contributions from the aerosols account for a large proportion of satellite signals in the atmosphere-ocean system, there is still about 50% discrepancy of the mean aerosol optical thickness from several prominent aerosol products provided by the satellite instruments. In this talk, I shall present our recent work related to the development of a new remote sensing algorithm for the simultaneous retrieval of aerosol optical properties and water leaving radiance over the open and coastal ocean using multi-spectral information, as well as an oceanic radiative transfer model and an acceleration scheme from the Neutral Network method.Finally, a promising scheme considering the spatial smoothness constraints for the aerosol retrieval, i.e., multi-pixel scheme, which has and will be used in current and next Japan carbon satellite instrument GOSAT_CAI/GOSAT2_CAI2, will be also introduced.