From biota to chemistry and climate: towards a comprehensive description of trace gas exchange between the biosphere and atmosphere

• Published in: Biogeosciences
• Main Authors: Arneth, Almut, Sitch, Stephen, Bondeau, Alberte, Butterbach-Bahl, K., Foster, P., Gedney, N., de Noblet-Ducoudré, N., Prentice, I. Colin, Sanderson, M., Thonicke, K., Wania, R., Zaehle, S.
• Other Authors: Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU), Karlsruher Institut für Technologie (KIT), College of Life and Environmental Sciences Exeter, University of Exeter, Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement IRD : UMR237-Centre National de la Recherche Scientifique (CNRS), University of Bristol Bristol, Joint Centre for Hydro-Meteorological Research, Met Office Hadley Centre (JCHMR), United Kingdom Met Office Exeter, Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Potsdam Institute for Climate Impact Research (PIK)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2010
• Subjects: [SDE]Environmental Sciences; ice core
• Online Access: https://amu.hal.science/hal-01788205; https://amu.hal.science/hal-01788205/document; https://amu.hal.science/hal-01788205/file/bg-7-121-2010.pdf; https://doi.org/10.5194/bg-7-121-2010

International audience Exchange of non-CO 2 trace gases between the land surface and the atmosphere plays an important role in atmospheric chemistry and climate. Recent studies have highlighted its importance for interpretation of glacial-interglacial ice-core records, the simulation of the pre-industrial and present atmosphere, and the potential for large climate-chemistry and climate-aerosol feedbacks in the coming century. However, spatial and temporal variations in trace gas emissions and the magnitude of future feedbacks are a major source of uncertainty in atmospheric chemistry, air quality and climate science. To reduce such uncertainties Dynamic Global Vegetation Models (DGVMs) are currently being expanded to mechanistically represent processes relevant to non-CO 2 trace gas exchange between land biota and the atmosphere. In this paper we present a review of im-Correspondence to: A. Arneth ([e-mail]) portant non-CO 2 trace gas emissions, the state-of-the-art in DGVM modelling of processes regulating these emissions, identify key uncertainties for global scale model applications , and discuss a methodology for model integration and evaluation.