Improving the Representation of Whitecap Fraction and Sea Salt Aerosol Emissions in the ECMWF IFS-AER

The European Centre for Medium-Range Weather Forecasts (ECMWF) operates the Integrated Forecasting System aerosol module (IFS-AER) to provide daily global analysis and forecast of aerosols Copernicus Atmosphere Monitoring Service (CAMS). New estimates sea salt emissions have been implemented in IFS-AER using a new parameterization whitecap fraction as function wind speed surface temperature. effect simulated by old parameterizations has evaluated comparing characteristics those retrievals. brought significant improvement compared two previously IFS-AER. Likewise, optical depth concentration are significantly improved, against ground remote sensing products.