This module includes similar strategy than the aerosol retrieval module included in SYN L2 processing, i.e. from a-priori knowledge and Look-up-tables, a double optimization of the error model is performed to retrieve the right aerosol optical thickness.

However, some elements have been updated with regards to SYN L2 processing:

• Inversion procedure to retrieve continuous aerosol component mixture.
• Inclusion of prior climatology of aerosol properties to constrain retrieval, especially Single Scattering Albedo.
• Uncertainty estimate per retrieval.
• Inclusion of ocean model giving surface reflectance and uncertainty, dependent on wind speed, ocean colour, for SLSTR & OLCI wavebands and view geometry.