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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Atmos. Chem. Phys. Discuss., 8, 4117-4154, 2008
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28 Feb 2008
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). A final paper in ACP is not foreseen.
Lagrangian transport modelling for CO2 using two different biosphere models
G. Pieterse1,2, A. T. Vermeulen1, I. T. Baker3, and A. S. Denning3
1Energy research Centre of the Netherlands, Petten, The Netherlands
2Institute for Marine and Atmospheric Research Utrecht, Utrecht, The Netherlands
3Colorado State University, Fort Collins, USA

Abstract. In this work, the performance of the Framework for Atmosphere-Canopy Exchange Modelling (FACEM: Pieterse et al., 2007) coupled to a Lagrangian atmospheric transport model is evaluated for carbon dioxide. Before incorporating FACEM into the Lagrangian COMET model (Vermeulen et al., 2006), its performance for the European domain is compared with the Simple Biosphere model (SiB3: Sellers et al., 1996). Overall, FACEM is well correlated to SiB3 (R20.60), but shows less variability for regions with predominantly bare soil. There is no significant overall bias between the models except for the winter conditions and in general for the Iberian peninsula. When coupled to the COMET transport model, both biosphere models yield similar correlations (R20.60) and bias relative to the 1-hourly concentration measurements for the year 2002, performed at three different sites in Europe; Cabauw (Netherlands), Hegyhatsal (Hungary) and Mace Head (Ireland). The overall results indicate that FACEM is comparable to SiB3 in terms of its applicability for atmospheric modelling studies.

Citation: Pieterse, G., Vermeulen, A. T., Baker, I. T., and Denning, A. S.: Lagrangian transport modelling for CO2 using two different biosphere models, Atmos. Chem. Phys. Discuss., 8, 4117-4154, doi:10.5194/acpd-8-4117-2008, 2008.
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