Comprehensive ecosystem model-data synthesis using multiple data sets at two temperate forest free-air CO2enrichment experiments: Model performance at ambient CO2concentration: FACE MODEL-DATA SYNTHESIS

Division of Environmental Science & Policy, Nicholas School of the Environment, Duke University, Durham, North Carolina, USA, and Department of Forest Ecology & Management, Swedish University of Agricultural Sciences (SLU), SE-901 83, Umea, Sweden. This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.