Atmospheric Chemistry and Physics (Mar 2023)
Technical note: The CAMS greenhouse gas reanalysis from 2003 to 2020
- A. Agustí-Panareda,
- J. Barré,
- S. Massart,
- A. Inness,
- I. Aben,
- M. Ades,
- B. C. Baier,
- B. C. Baier,
- G. Balsamo,
- T. Borsdorff,
- N. Bousserez,
- S. Boussetta,
- M. Buchwitz,
- L. Cantarello,
- C. Crevoisier,
- R. Engelen,
- H. Eskes,
- J. Flemming,
- S. Garrigues,
- O. Hasekamp,
- V. Huijnen,
- L. Jones,
- Z. Kipling,
- B. Langerock,
- J. McNorton,
- N. Meilhac,
- S. Noël,
- M. Parrington,
- V.-H. Peuch,
- M. Ramonet,
- M. Razinger,
- M. Reuter,
- R. Ribas,
- M. Suttie,
- C. Sweeney,
- J. Tarniewicz,
- L. Wu
Affiliations
- A. Agustí-Panareda
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- J. Barré
- Joint Center for Satellite Data Assimilation, University Corporation for Atmospheric Research, Boulder, CO, USA
- S. Massart
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- A. Inness
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- I. Aben
- SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
- M. Ades
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- B. C. Baier
- Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
- B. C. Baier
- NOAA, Global Monitoring Laboratory, Boulder, CO, USA
- G. Balsamo
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- T. Borsdorff
- SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
- N. Bousserez
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- S. Boussetta
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- M. Buchwitz
- Institute of Environmental Physics (IUP), University of Bremen, 28334 Bremen, Germany
- L. Cantarello
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- C. Crevoisier
- Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Ecole polytechnique, 91128 Palaiseau CEDEX, France
- R. Engelen
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- H. Eskes
- Royal Netherlands Meteorological Institute, Utrechtseweg 297, 3731 GA De Bilt, the Netherlands
- J. Flemming
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- S. Garrigues
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- O. Hasekamp
- SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
- V. Huijnen
- Royal Netherlands Meteorological Institute, Utrechtseweg 297, 3731 GA De Bilt, the Netherlands
- L. Jones
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- Z. Kipling
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- B. Langerock
- Royal Belgian Institute for Space Aeronomy, Avenue Circulaire 3, 1180 Uccle, Belgium
- J. McNorton
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- N. Meilhac
- Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Ecole polytechnique, 91128 Palaiseau CEDEX, France
- S. Noël
- Institute of Environmental Physics (IUP), University of Bremen, 28334 Bremen, Germany
- M. Parrington
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- V.-H. Peuch
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- M. Ramonet
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- M. Razinger
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- M. Reuter
- Institute of Environmental Physics (IUP), University of Bremen, 28334 Bremen, Germany
- R. Ribas
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- M. Suttie
- European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading RG2 9AX, United Kingdom
- C. Sweeney
- NOAA, Global Monitoring Laboratory, Boulder, CO, USA
- J. Tarniewicz
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- L. Wu
- Remote Sensing Unit, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
- DOI
- https://doi.org/10.5194/acp-23-3829-2023
- Journal volume & issue
-
Vol. 23
pp. 3829 – 3859
Abstract
The Copernicus Atmosphere Monitoring Service (CAMS) has recently produced a greenhouse gas reanalysis (version egg4) that covers almost 2 decades from 2003 to 2020 and which will be extended in the future. This reanalysis dataset includes carbon dioxide (CO2) and methane (CH4). The reanalysis procedure combines model data with satellite data into a globally complete and consistent dataset using the European Centre for Medium-Range Weather Forecasts' Integrated Forecasting System (IFS). This dataset has been carefully evaluated against independent observations to ensure validity and to point out deficiencies to the user. The greenhouse gas reanalysis can be used to examine the impact of atmospheric greenhouse gas concentrations on climate change (such as global and regional climate radiative forcing), assess intercontinental transport, and serve as boundary conditions for regional simulations, among other applications and scientific uses. The caveats associated with changes in assimilated observations and fixed underlying emissions are highlighted, as is their impact on the estimation of trends and annual growth rates of these long-lived greenhouse gases.
