Introduction
The aerosol climatology was derived from the CAMS interim Reanalysis and its control run (Flemming et al. 2017) as described in Bozzo et al. (2019). The data set is based on the modelled aerosol mixing ratios of the control run, which were scaled to match the Aerosol Optical Depth (AOD) analyses of the CAMS interim Reanalysis (Data assimilation of MODIS AOD). It contains monthly mean 3D mass mixing ratios of desert dust (3 size bins), seas salt (3 size bins), organic matter, black carbon and sulphate as represented by the IFS-AER aerosol scheme (Remy et al. 2019) .
Data description
The purpose of the dataset is to represent aerosols in the radiation scheme of the Integrated Forecasting System of ECMWF.
The file aerosol_cams_3d_climatology_2003-2013.nc contains the CAMS aerosol climatology as originally described in Bozzo et al. (2019)
The file aerosol_cams_3d_climatology_47r1.nc contains the CAMS aerosol climatology as used in IFS cycle 47r1. The dataset has manually reduced organic matter and black carbon mass mixing ratios over Central Africa. The original dataset had led to a degradation of the temperature forecasts in that area.
The file aerosol_cams_ifs_optics.nc provides the optical parameters needed for the implementation of the radiative effect of the CAMS aerosol species in the ECMWF radiation scheme. The file also provides the optical properties for a set of 20 individual wavelengths covering the visible and near-infrared spectral range.
All files can be found here: https://sites.ecmwf.int/data/cams/aerosol_radiation_climatology/
Dataset DOI: https://doi.org/10.24380/jgs8-sc58
References
Bozzo, A., Benedetti, A., Flemming, J., Kipling, Z., and Rémy, S.: An aerosol climatology for global models based on the tropospheric aerosol scheme in the Integrated Forecasting System of ECMWF, Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2019-149, in review, 2019.
Flemming, J., Benedetti, A., Inness, A., Engelen, R. J., Jones, L., Huijnen, V., Remy, S., Parrington, M., Suttie, M., Bozzo, A., Peuch, V.-H., Akritidis, D., and Katragkou, E.: The CAMS interim Reanalysis of Carbon Monoxide, Ozone and Aerosol for 2003-2015, Atmos. Chem. Phys., 17, 1945-1983, doi:10.5194/acp-17-1945-2017, 2017.
Rémy, S., Kipling, Z., Flemming, J., Boucher, O., Nabat, P., Michou, M., Bozzo, A., Ades, M., Huijnen, V., Benedetti, A., Engelen, R., Peuch, V.-H., and Morcrette, J.-J.: Description and evaluation of the tropospheric aerosol scheme in the European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS-AER, cycle 45R1), Geosci. Model Dev., 12, 4627–4659, https://doi.org/10.5194/gmd-12-4627-2019, 2019.
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CAMS: Global atmospheric composition forecast data documentation (Copernicus Knowledge Base)
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