Articles | Volume 18, issue 5
https://doi.org/10.5194/acp-18-3335-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-18-3335-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
07 Mar 2018
Research article |
| 07 Mar 2018
Diurnal, synoptic and seasonal variability of atmospheric CO2 in the Paris megacity area
Irène Xueref-Remy
CORRESPONDING AUTHOR
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
now at: Aix Marseille Univ, Avignon Université, CNRS, IRD, Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Marseille, France
Elsa Dieudonné
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
now at: Laboratoire de Physico-Chimie de l'Atmosphère (LPCA), Dunkirk, France
Cyrille Vuillemin
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
now at: European Organization for Nuclear Research (CERN), Meyrin, Switzerland
Morgan Lopez
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
now at: Environment Canada, Climate Research Division, Toronto, Ontario, Canada
Christine Lac
Centre National de la Recherche Météorologique (CNRM-GAME), Toulouse, France
Martina Schmidt
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
now at: Institute of Environmental Physics (IEP), Heidelberg, Germany
Marc Delmotte
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
Frédéric Chevallier
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
François Ravetta
Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Guyancourt, France
Olivier Perrussel
Association de Surveillance de la Qualité de l'Air en Île-de-France (AIRPARIF), Paris, France
Philippe Ciais
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
François-Marie Bréon
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
Grégoire Broquet
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
Michel Ramonet
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
T. Gerard Spain
National University of Ireland (NUI), Galway, Ireland
Christophe Ampe
Association de Surveillance de la Qualité de l'Air en Île-de-France (AIRPARIF), Paris, France
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Latest update: 08 Nov 2025
Short summary
Urbanized and industrialized areas are the largest source of fossil CO2. This work analyses the atmospheric CO2 variability observed from the first in situ network deployed in the Paris megacity area. Gradients of several ppm are found between the rural, peri-urban and urban sites at the diurnal to the seasonal scales. Wind direction and speed as well as boundary layer dynamics, correlated to highly variable urban emissions, are shown to be key regulator factors of the observed CO2 records.
Urbanized and industrialized areas are the largest source of fossil CO2. This work analyses the...
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