EGU2020-14486, updated on 10 Jan 2023
EGU General Assembly 2020
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Observil - A French network project of urban critical zone observatories

Fabrice Rodriguez1,2, Jean Nabucet3, Jules Kouadio1,2, Beatrice Bechet1,2, Nadege Blond4, Emmanuel Bozonnet5, Ghassan Chebbo6, Damien David7, Sihem Guernouti8, Thomas Houet3, Pascal Keravec2,9, Thierry Lebeau2,10, Gislain Lipeme-Kouyi11, Valery Masson12, Anne Puissant4, Yves Richard13, Christophe Schwartz14, and Zahra Thomas15
Fabrice Rodriguez et al.
  • 1GERS-LEE, Univ Gustave Eiffel, IFSTTAR, 44344 Bouguenais, France (
  • 2IRSTV – FR CNRS 2488 – 44321 Nantes, France
  • 3UMR 6554 LETG – Rennes – Université Rennes 2 - 35043 Rennes, France
  • 4LIVE - UMR7362 CNRS/Université de Strasbourg - 67000 Strasbourg, France
  • 5LaSIE UMR-CNRS 7356 - La Rochelle Université - 17042 La Rochelle, , France
  • 6LEESU, Ecole des Ponts, AgroParisTech, UPEC, UPE, 77420 Champs-sur-Marne, France
  • 7CETHIL-UMR5008 - Université Lyon 1 - INSA de Lyon- 69621 Villeurbanne, France
  • 8Cerema, F-44000 Nantes, France
  • 9LHEEA, Ecole Centrale de Nantes 44321 Nantes, France
  • 10UMR LPG-Nantes 6112 CNRS - Université de Nantes - 44322 Nantes, France
  • 11DEEP - INSA de Lyon- 69621 Villeurbanne, France
  • 12CNRM, GMME/TURBAU, 31057 Toulouse , France
  • 13CRC, UMR 6282 Biogéosciences, CNRS/Univ Bourgogne Franche-Comté, 21000 Dijon, France
  • 14LSE, UMR 1120 Université de Lorraine-INRAE – 54000 Nancy, France
  • 15UMR SAS 1069 , INRAE, AGROCAMPUS OUEST, 35042 Rennes, France

One significant effect of urbanization is the modification of environmental conditions, with potential effects on the functioning of urban ecosystems and on their ability to perform functions and to provide service. This is due to both the multiple changes of surfaces and soils, and to an increased human pressure. These changes have indeed major negative impacts on natural resources such as air, water, soil, and biodiversity they host, and may affect locally the human thermal comfort, in addition to the climate change. A better understanding of the physical and biogeochemical processes leading to these changes is then crucial in order to propose and to optimize the mitigation and adaptation strategies. Following the recent efforts in the development of Critical Zones Observatories (CZOs), a new research initiative will regroup well-monitored and well-characterized urban field sites all over the French national territory within a National Observation Service called Observil. This observatory aims to address a multidisciplinary approach of urban environments, through a smart definition of appropriate variables and indicators required to better describe the physical and geochemical processes involved in the quality and the dynamic of the soil-surface-atmosphere compartments in cities. To do that, a common Spatial Information System dedicated to the creation of a structured observation database is under construction, in order to regroup the data from a large network bringing together 9 French cities under very contrasted environmental conditions (urban morphology, geology, climate). The main scientific questions addressed by this observation network project will be presented, along with a description of the the selected variables measured on the different sites.

How to cite: Rodriguez, F., Nabucet, J., Kouadio, J., Bechet, B., Blond, N., Bozonnet, E., Chebbo, G., David, D., Guernouti, S., Houet, T., Keravec, P., Lebeau, T., Lipeme-Kouyi, G., Masson, V., Puissant, A., Richard, Y., Schwartz, C., and Thomas, Z.: Observil - A French network project of urban critical zone observatories, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-14486,, 2020.


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