Biosphere-atmosphere exchange or organic compounds: impact of intra-canopy processes (CANOPÉE 2011-2014)
Biosphere-atmosphere exchange or organic compounds: impact of intra-canopy processes (CANOPÉE 2011-2014)
Editor(s): J. Rinne, M. Kanakidou, and J. Williams
The objective of CANOPÉE is to understand and quantify the role of intra-canopy processes in the surface–atmosphere exchange of compounds, focusing on biogenic volatile organic compounds (VOCs), and especially isoprene, which is the first biogenic VOC emitted, and ozone. The novelty of our project is based on the combination of new experimental and modeling approaches, and a multi-disciplinary methodology including branch-scale to canopy-scale measurements for the structural, chemical and ecological characteristics of the canopy. A field campaign was carried out in May–June 2012 at the Observatoire de Haute Provence (OHP/O3HP) in the southern part of France, on a large oak (Quercus pubescens) forest site. Measurements were set to investigate the geographical and vertical tree distribution (lidar on-board ULA); the isoprene emission rate at the branch level (dynamic enclosure chambers); and the atmospheric chemical composition inside and above the canopy together with concentrations diurnal and vertical variability for key compounds such as ozone, nitrogen oxides and a variety of VOCs (GC-MS and PTR-MS) or aerosols. Data and observations collected will be integrated in a one-dimensional model (CACHE) to improve our knowledge on the intra-canopy processes and their representation in modeling tools, and regional studies will be performed with the chemistry-transport model CHIMERE to assess the impact of such forest sites on regional chemistry and possible future evolution.

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22 Jun 2017
Effect of mid-term drought on Quercus pubescens BVOCs' emission seasonality and their dependency on light and/or temperature
Amélie Saunier, Elena Ormeño, Christophe Boissard, Henri Wortham, Brice Temime-Roussel, Caroline Lecareux, Alexandre Armengaud, and Catherine Fernandez
Atmos. Chem. Phys., 17, 7555–7566,,, 2017
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02 Dec 2016
A top-down approach of surface carbonyl sulfide exchange by a Mediterranean oak forest ecosystem in southern France
Sauveur Belviso, Ilja Marco Reiter, Benjamin Loubet, Valérie Gros, Juliette Lathière, David Montagne, Marc Delmotte, Michel Ramonet, Cerise Kalogridis, Benjamin Lebegue, Nicolas Bonnaire, Victor Kazan, Thierry Gauquelin, Catherine Fernandez, and Bernard Genty
Atmos. Chem. Phys., 16, 14909–14923,,, 2016
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11 Feb 2016
OH reactivity and concentrations of biogenic volatile organic compounds in a Mediterranean forest of downy oak trees
N. Zannoni, V. Gros, M. Lanza, R. Sarda, B. Bonsang, C. Kalogridis, S. Preunkert, M. Legrand, C. Jambert, C. Boissard, and J. Lathiere
Atmos. Chem. Phys., 16, 1619–1636,,, 2016
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14 Jan 2015
Variability of BVOC emissions from a Mediterranean mixed forest in southern France with a focus on Quercus pubescens
A.-C. Genard-Zielinski, C. Boissard, C. Fernandez, C. Kalogridis, J. Lathière, V. Gros, N. Bonnaire, and E. Ormeño
Atmos. Chem. Phys., 15, 431–446,,, 2015
22 Sep 2014
Concentrations and fluxes of isoprene and oxygenated VOCs at a French Mediterranean oak forest
C. Kalogridis, V. Gros, R. Sarda-Esteve, B. Langford, B. Loubet, B. Bonsang, N. Bonnaire, E. Nemitz, A.-C. Genard, C. Boissard, C. Fernandez, E. Ormeño, D. Baisnée, I. Reiter, and J. Lathière
Atmos. Chem. Phys., 14, 10085–10102,,, 2014
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