Scaling carbon fluxes from eddy covariance sites to globe: Synthesis and evaluation of the FLUXCOM approach

FLUXNET comprises globally distributed eddycovariance-based estimates of carbon fluxes between the biosphere and the atmosphere. Since eddy covariance flux towers have a relatively small footprint and are distributed unevenly across the world, upscaling the observations is necessary to obtain global-scale estimates of biosphere- atmosphere exchange. Based on cross-consistency checks with atmospheric inversions, sun-induced fluorescence (SIF) and dynamic global vegetation models (DGVMs), here we provide a systematic assessment of the latest upscaling efforts for gross primary production (GPP) and net ecosystem exchange (NEE) of the FLUXCOM initiative, where different machine learning methods, forcing data sets and sets of predictor variables were employed.

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Author Jung, M.
Schwalm, C.
Migliavacca, M.
Walther, S.
Camps-Valls, G.
Koirala, S.
Anthoni, P.
Besnard, S.
Bodesheim, P.
Carvalhais, N.
Chevallier, F.
Gans, F.
Goll, D. S.
Haverd, V.
Köhler, P.
Ichii, K.
Jain, A. K.
Liu, J.
Lombardozzi, Danica
Nabel, J. E. M. S.
Nelson, J. A.
O'Sullivan, M.
Pallandt, M.
Papale, D.
Peters, W.
Pongratz, J.
Rödenbeck, C.
Sitch, S.
Tramontana, G.
Walker, A.
Weber, U.
Reichstein, M.
Publisher UCAR/NCAR - Library
Publication Date 2020-03-16T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2025-07-11T19:20:43.714762
Metadata Record Identifier edu.ucar.opensky::articles:23220
Metadata Language eng; USA
Suggested Citation Jung, M., Schwalm, C., Migliavacca, M., Walther, S., Camps-Valls, G., Koirala, S., Anthoni, P., Besnard, S., Bodesheim, P., Carvalhais, N., Chevallier, F., Gans, F., Goll, D. S., Haverd, V., Köhler, P., Ichii, K., Jain, A. K., Liu, J., Lombardozzi, Danica, Nabel, J. E. M. S., Nelson, J. A., O'Sullivan, M., Pallandt, M., Papale, D., Peters, W., Pongratz, J., Rödenbeck, C., Sitch, S., Tramontana, G., Walker, A., Weber, U., Reichstein, M.. (2020). Scaling carbon fluxes from eddy covariance sites to globe: Synthesis and evaluation of the FLUXCOM approach. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d72n55gj. Accessed 06 December 2025.

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