Evaluation and inversion of a net ecosystem carbon exchange model for grasslands and croplands

Michael Herbst1, Anne Klosterhalfen2, Lutz Weihermueller3, Alexander Graf2, Marius Schmidt4, Johan Alexander Huisman5 and Harry Vereecken2, (1)Research Centre Juelich GmbH, Juelich, Germany, (2)Agrosphere (IBG-3), Institute of Bio- and Geosciences, Forschungszentrum Jülich, Juelich, Germany, (3)Forschungszentrum Jülich, Jülich, Germany, (4)Agrosphere Institute (IBG-3), Forschungszentrum Jülich, Jülich, Germany, (5)Agrosphere Institute (IBG-3) Forschungszentrum Jülich, Deutschland, Germany