Comment on egusphere-2022-283
Abstract
Abstract. The Copernicus Atmosphere Monitoring Service has recently produced a greenhouse gases reanalysis (version egg4) that covers almost two decades from 2003 to 2020 and 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 point out deficiencies to the user. The greenhouse gas reanalysis can be used to examine the impact of atmospheric greenhouse gases concentrations on climate change, such as global and regional climate radiative forcing, assess intercontinental transport, and also serve as boundary conditions for regional simulations, among other applications and scientific studies. The caveats associated with changes in assimilated observations and fixed underlying emissions are highlighted, as well as their impact on the estimation of trends and annual growth rates of these long-lived greenhouse gases.
Authors 32
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Anna Agustí‐Panareda corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Antje Inness corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Space Research Organisation Netherlands
Affiliation as printed
SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
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Melanie Ades corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Bianca C. Baier corresponding
National Oceanic and Atmospheric Administration · Cooperative Institute for Research in Environmental Sciences · University of Colorado Boulder · NOAA Global Monitoring Laboratory
Affiliation as printed
Cooperative Institute for Research in Environmental Sciences, University of Colorado-Boulder, Boulder, CO, USA
NOAA, Global Monitoring Laboratory, Boulder, CO, USA
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Gianpaolo Balsamo corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Space Research Organisation Netherlands
Affiliation as printed
SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
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Nicolas Bousserez corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Souhail Boussetta corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Michael Buchwitz corresponding
Affiliation as printed
Institute of Environmental Physics (IUP), University of Bremen, 28334 Bremen, Germany
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Luca Cantarello corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Cyril Crévoisier corresponding
Centre National de la Recherche Scientifique · École Polytechnique · Laboratoire de Météorologie Dynamique
Affiliation as printed
Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Ecole polytechnique, 91128 Palaiseau Cedex, France
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Richard J. Engelen corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Henk J. Eskes corresponding
Royal Netherlands Meteorological Institute
Affiliation as printed
Royal Netherlands Meteorological Institute, Utrechtseweg 297, NL-3731 GA De Bilt, Netherlands
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Johannes Flemming corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Space Research Organisation Netherlands
Affiliation as printed
SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
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Vincent Huijnen corresponding
Royal Netherlands Meteorological Institute
Affiliation as printed
Royal Netherlands Meteorological Institute, Utrechtseweg 297, NL-3731 GA De Bilt, Netherlands
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Luke Jones corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Zak Kipling corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Bavo Langerock corresponding
Royal Belgian Institute for Space Aeronomy
Affiliation as printed
Royal Belgian Institute for Space Aeronomy, Avenue Circulaire 3, 1180 Uccle, Belgium
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Joe McNorton corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Nicolas Meilhac corresponding
Centre National de la Recherche Scientifique · École Polytechnique · Laboratoire de Météorologie Dynamique
Affiliation as printed
Laboratoire de Météorologie Dynamique (LMD/IPSL), CNRS, Ecole polytechnique, 91128 Palaiseau Cedex, France
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Stefan Noël corresponding
Affiliation as printed
Institute of Environmental Physics (IUP), University of Bremen, 28334 Bremen, Germany
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Mark Parrington corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Vincent‐Henri Peuch corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Michel Ramonet corresponding
Centre National de la Recherche Scientifique · Université de Versailles Saint-Quentin-en-Yvelines · Commissariat à l'Énergie Atomique et aux Énergies Alternatives · Université Paris-Saclay · Laboratoire des Sciences du Climat et de l'Environnement
Affiliation as printed
Laboratoire des Sciences du Climat et de l’Environnement (LSCE-IPSL), CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), CEA-CNRS-UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
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Miha Ratzinger corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Maximilian Reuter corresponding
Affiliation as printed
Institute of Environmental Physics (IUP), University of Bremen, 28334 Bremen, Germany
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Roberto Ribas corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Martin Suttie corresponding
European Centre for Medium-Range Weather Forecasts
Affiliation as printed
European Centre for Medium Range Weather Forecasts, Shenfield Park, Reading RG2 9AX, United Kingdom
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Colm Sweeney corresponding
National Oceanic and Atmospheric Administration · NOAA Global Monitoring Laboratory
Affiliation as printed
NOAA, Global Monitoring Laboratory, Boulder, CO, USA
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Lianghai Wu corresponding
Flemish Institute for Technological Research
Affiliation as printed
Flemish Institute for Technological Research (VITO), Remote Sensing Unit, Boeretang 200, B-2400 Mol, Belgium
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