Please acknowledge the use of CAMS data as stated in the license agreement:
"Where the Licensee communicates to the public or distributes or publishes CAMS Information, the Licensee shall inform the recipients of the source of that information by using the following or any similar notice: 'Generated using Copernicus Atmosphere Monitoring Service Information [Year]'.
Where the Licensee makes or contributes to a publication or distribution containing adapted or modified CAMS Information, the Licensee shall provide the following or any similar notice: 'Contains modified Copernicus Atmosphere Monitoring Service Information [Year]';
Any such publication or distribution shall state that neither the European Commission nor ECMWF is responsible for any use that may be made of the information it contains."
You also might want to reference this paper which describes the data in more detail:
- Agusti-Panareda, A, Massart, S, Chevallier, F, Balsamo, G, Boussetta, S, Dutra, E, Beljaars, A (2016): A biogenic C02 flux adjustment scheme for the mitigation of large-scale biases in global atmospheric CO2 analyses and forecasts, ECMWF Technical Memorandum 773, http://www.ecmwf.int/en/elibrary/15374-biogenic-c02-flux-adjustment-scheme-mitigation-large-scale-biases-global
For CO you can also refer to:
- Inness, A., Blechschmidt, A.-M., Bouarar, I., Chabrillat, S., Crepulja, M., Engelen, R. J., Eskes, H., Flemming, J., Gaudel, A., Hendrick, F., Huijnen, V., Jones, L., Kapsomenakis, J., Katragkou, E., Keppens, A., Langerock, B., de Mazière, M., Melas, D., Parrington, M., Peuch, V. H., Razinger, M., Richter, A., Schultz, M. G., Suttie, M., Thouret, V., Vrekoussis, M., Wagner, A., and Zerefos, C. (2015): Data assimilation of satellite-retrieved ozone, carbon monoxide and nitrogen dioxide with ECMWF's Composition-IFS, Atmos. Chem. Phys., 15, 5275-5303, doi:10.5194/acp-15-5275-2015.
For CO2 and CH4 concentrations from the MACC flux inversion systems, please acknowledge Bergamaschi et al. (2007, 2009) and Chevallier et al. (2010). See the list of the publications documenting the two products below.
- Bergamaschi, P., C. Frankenberg, J. F. Meirink, M. Krol, F. Dentener, T. Wagner, U. Platt, J. O. Kaplan, S. Koerner, M. Heimann, E.J. Dlugokencky and A. Goede (2007), Satellite chartography of atmospheric methane from SCIAMACHY on board ENVISAT: 2. Evaluation based on inverse model simulations, J. Geophys. Res., 112 , D02304, 10.1029/2006JD007268.
- Bergamaschi, P., C. Frankenberg, J. F. Meirink, M. Krol, M. G. Villani, S. Houweling, F. Dentener, E. J. Dlugokencky, J. B. Miller, L. V. Gatti, A. Engel, and I. Levin (2009), Inverse modeling of global and regional CH4 emissions using SCIAMACHY satellite retrievals, J. Geophys. Res., 114, 10.1029/2009JD012287.
- Bergamaschi, P., S. Houweling, A. Segers, M. Krol, C. Frankenberg, R. A. Scheepmaker, E. Dlugokencky, S. Wofsy, E. Kort, C. Sweeney, T. Schuck, C. Brenninkmeijer, H. Chen, V. Beck and C. Gerbig (2013a), Atmospheric CH4 in the first decade of the 21st century: Inverse modeling analysis using SCIAMACHY satellite retrievals and NOAA surface measurements, J. Geophys. Res., doi:10.1002/jgrd.50480.
- Bergamaschi, P., Segers, A., Scheepmaker, R., Frankenberg, C., Hasekamp, O., Dlugokencky, E., Sweeney, C., Ramonet, M., Tarniewicz, J., Kort, E., and Wofsy, S.(2013b): Report on the quality of the inverted CH4 fluxes, MACC-II Deliverable D_43.3, Tech. rep., available at: https://atmosphere.copernicus.eu/documents/maccii/deliverables/ghg/, Joint Research Center, European Commission.
- Bergamaschi, P., M. Krol, J. F. Meirink, F. Dentener, A. Segers, J. van Aardenne, S. Monni, A. Vermeulen, M. Schmidt, M. Ramonet, C. Yver, F. Meinhardt, E. G. Nisbet, R. Fisher, S. O'Doherty, and E. J. Dlugokencky, Inverse modeling of European CH4 emissions 2001-2006, J. Geophys. Res., 115 (D22309), doi:10.1029/2010JD014180, 2010.
- Chevallier, F., et al. (2010), CO2 surface fluxes at grid point scale estimated from a global 21-year reanalysis of atmospheric measurements. J. Geophys. Res., 115, D21307, doi:10.1029/2010JD013887
