Articles | Volume 7, issue 12
https://doi.org/10.5194/amt-7-4237-2014
https://doi.org/10.5194/amt-7-4237-2014
Research article
 | 
08 Dec 2014
Research article |  | 08 Dec 2014

Prerequisites for application of hyperbolic relaxed eddy accumulation on managed grasslands and alternative net ecosystem exchange flux partitioning

M. Riederer, J. Hübner, J. Ruppert, W. A. Brand, and T. Foken

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Cited articles

Ammann, C. and Meixner, F. X.: Stability dependence of the relaxed eddy accumulation coefficient for various scalar quantities, J. Geophys. Res., 107, ACL7.1–ACL7.9, https://doi.org/10.1029/2001JD000649, 2002.
Ammann, C., Flechard, C. R., Leifeld, J., Neftel, A., and Fuhrer, J.: The carbon budget of newly established temperate grassland depends on management intensity: The Greenhouse Gas Balance of Grasslands in Europe, Agr. Ecosyst. Environ., 121, 5–20, https://doi.org/10.1016/j.agee.2006.12.002, 2007.
Andreas, E. L., Hill, P. W., Gosz, J. R., Moore, D., Otto, W., and Sarma, A.: Statistics of Surface Layer Turbulence over Terrain with Meter-Scale Heterogeneity, Bound.-Lay. Meteorol., 86, 379–409, 1998a.
Andreas, E. L., Hill, R. J., Gosz, J. R., Moore, D. I., Otto, W. D., and Sarma, A. D.: Stability Dependence of the Eddy-Accumulation Coefficients for Momentum and Scalars, Bound.-Lay. Meteorol., 86, 409–420, 1998b.
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Short summary
The REA technique cannot be applied on grassland shortly after management without the risk of REA-flux errors due to large uncertainties of b-factors and lacking scalar similarity. The NEE flux partitioning model based on REA measurement results is complex but can enhance results of common partitioning by considering ecosystem discrimination of 13C and wind velocity.