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

Jung, Martin; Schwalm, Christopher; Migliavacca, Mirco; Walther, Sophia; Camps-Valls, Gustau; Koirala, Sujan; Anthoni, Peter; Besnard, Simon; Bodesheim, Paul; Carvalhais, Nuno; Chevallier, Frédéric; Gans, Fabian; Goll, Daniel S.; Haverd, Vanessa; Köhler, Philipp; Ichii, Kazuhito; Jain, Atul K.; Liu, Junzhi; Lombardozzi, Danica; Nabel, Julia S.; Nelson, Jacob A.; O'Sullivan, Michael; Pallandt, Martijn; Papale, Dario; Peters, Wouter; Pongratz, Julia; Rödenbeck, Christian; Sitch, Stephen; Tramontana, Gianluca; Walker, Anthony; Weber, Ulrich; Reichstein, Markus

doi:10.5194/bg-17-1343-2020

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

Journal Article · Mon Mar 16 00:00:00 EDT 2020 · Biogeosciences (Online)

DOI:https://doi.org/10.5194/bg-17-1343-2020· OSTI ID:1761654

Jung, Martin ^[1]; Schwalm, Christopher ^[2];

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^[5]; Bodesheim, Paul ^[6];

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^[8]; Gans, Fabian ^[1];

^[9]; Haverd, Vanessa ^[10];

^[11]; Ichii, Kazuhito ^[12];

^[13]; Liu, Junzhi ^[14]; Lombardozzi, Danica ^[15];

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Max Planck Inst. for Biogeochemistry, Jena (Germany)
Woods Hole Research Center, Falmouth, MA (United States)
Univ. of Valencia, Paterna (Spain)
Karlsruhe Inst. of Technology, Garmisch-Partenkirchen (Germany)
Max Planck Inst. for Biogeochemistry, Jena (Germany); Wageningen Univ. and Research (Netherlands)
Max Planck Inst. for Biogeochemistry, Jena (Germany); Friedrich Schiller Univ., Jena (Germany)
Max Planck Inst. for Biogeochemistry, Jena (Germany); Univ. Nova de Lisboa, Caparica (Portugal)
Univ. Paris-Saclay, Gif-sur-Yvette (France)
Univ. of Augsburg (Germany)
Commonwealth Scientific and Industrial Research Organization (CSIRO), Caberra (Australia)
California Institute of Technology (CalTech), Pasadena, CA (United States)
Chiba Univ. (Japan); National Inst. for Environmental Studies, Tsukuba (Japan)
Univ. of Illinois at Urbana-Champaign, IL (United States)
Max Planck Inst. for Biogeochemistry, Jena (Germany); Nanjing Normal Univ. (China)
National Center for Atmospheric Research, Boulder, CO (United States)
Max Planck Inst. for Meteorology, Hamburg (Germany)
Univ. of Exeter (United Kingdom)
Tuscia Univ., Viterbo (Italy); Euro-Mediterranean Center on Climate Change (CMCC), Lecce (Italy)
Wageningen Univ. and Research (Netherlands)
Max Planck Inst. for Meteorology, Hamburg (Germany); Ludwig-Maximilians-Univ., Munich (Germany)
Univ. of Exeter (United States)
Univ. of Valencia, Paterna (Spain); Tuscia Univ., Viterbo (Italy)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

FLUXNET comprises globally distributed eddy-covariance-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. Spatial patterns of mean GPP are consistent across FLUXCOM and DGVM ensembles (R²>0.94 at 1° spatial resolution) while the majority of DGVMs show, for 70 % of the land surface, values outside the FLUXCOM range. Global mean GPP magnitudes for 2008–2010 from FLUXCOM members vary within 106 and 130 PgC yr^-1 with the largest uncertainty in the tropics. Seasonal variations in independent SIF estimates agree better with FLUXCOM GPP (mean global pixel-wise R²~0.75) than with GPP from DGVMs (mean global pixel-wise R²~0.6). Seasonal variations in FLUXCOM NEE show good consistency with atmospheric inversion-based net land carbon fluxes, particularly for temperate and boreal regions (R²>0.92). Interannual variability of global NEE in FLUXCOM is underestimated compared to inversions and DGVMs. The FLUXCOM version which also uses meteorological inputs shows a strong co-variation in interannual patterns with inversions (R²=0.87 for 2001–2010). Mean regional NEE from FLUXCOM shows larger uptake than inversion and DGVM-based estimates, particularly in the tropics with discrepancies of up to several hundred grammes of carbon per square metre per year. These discrepancies can only partly be reconciled by carbon loss pathways that are implicit in inversions but not captured by the flux tower measurements such as carbon emissions from fires and water bodies. We hypothesize that a combination of systematic biases in the underlying eddy covariance data, in particular in tall tropical forests, and a lack of site history effects on NEE in FLUXCOM are likely responsible for the too strong tropical carbon sink estimated by FLUXCOM. Furthermore, as FLUXCOM does not account for CO₂ fertilization effects, carbon flux trends are not realistic. Overall, current FLUXCOM estimates of mean annual and seasonal cycles of GPP as well as seasonal NEE variations provide useful constraints of global carbon cycling, while interannual variability patterns from FLUXCOM are valuable but require cautious interpretation. Exploring the diversity of Earth observation data and of machine learning concepts along with improved quality and quantity of flux tower measurements will facilitate further improvements of the FLUXCOM approach overall.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Biological and Environmental Research (BER); European Space Agency; European Institute of Innovation and Technology; National Science Foundation (NSF)

Grant/Contract Number:: AC05-00OR22725; SC0016323; 647423; ESRIN/4000123002/18/I-NB; 776186; 776810; 640176; GA 820852

OSTI ID:: 1761654

Journal Information:: Biogeosciences (Online), Vol. 17, Issue 5; ISSN 1726-4189

Publisher:: European Geosciences UnionCopyright Statement

Country of Publication:: United States

Language:: English

References (86)

Global and time-resolved monitoring of crop photosynthesis with chlorophyll fluorescence Guanter, L.; Zhang, Y.; Jung, M. Proceedings of the National Academy of Sciences, Vol. 111, Issue 14 https://doi.org/10.1073/pnas.1320008111	journal	March 2014
Towards global empirical upscaling of FLUXNET eddy covariance observations: validation of a model tree ensemble approach using a biosphere model Jung, M.; Reichstein, M.; Bondeau, A. Biogeosciences, Vol. 6, Issue 10 https://doi.org/10.5194/bg-6-2001-2009	journal	January 2009
Estimating global gross primary productivity using chlorophyll fluorescence and a data assimilation system with the BETHY-SCOPE model Norton, Alexander J.; Rayner, Peter J.; Koffi, Ernest N. Biogeosciences, Vol. 16, Issue 15 https://doi.org/10.5194/bg-16-3069-2019	journal	January 2019
Deep learning LeCun, Yann; Bengio, Yoshua; Hinton, Geoffrey Nature, Vol. 521, Issue 7553 https://doi.org/10.1038/nature14539	journal	May 2015
The surface-atmosphere exchange of carbon dioxide in tropical rainforests: Sensitivity to environmental drivers and flux measurement methodology Fu, Zheng; Gerken, Tobias; Bromley, Gabriel Agricultural and Forest Meteorology, Vol. 263 https://doi.org/10.1016/j.agrformet.2018.09.001	journal	December 2018
Upscaled diurnal cycles of land–atmosphere fluxes: a new global half-hourly data product Bodesheim, Paul; Jung, Martin; Gans, Fabian Earth System Science Data, Vol. 10, Issue 3 https://doi.org/10.5194/essd-10-1327-2018	journal	January 2018
A linear method for the retrieval of sun-induced chlorophyll fluorescence from GOME-2 and SCIAMACHY data Köhler, P.; Guanter, L.; Joiner, J. Atmospheric Measurement Techniques, Vol. 8, Issue 6 https://doi.org/10.5194/amt-8-2589-2015	journal	January 2015
Seven years of recent European net terrestrial carbon dioxide exchange constrained by atmospheric observations Peters, W.; Krol, M. C.; van der WERF, G. R. Global Change Biology, Vol. 16, Issue 4 https://doi.org/10.1111/j.1365-2486.2009.02078.x	journal	April 2010
Gross Primary Productivity of Four European Ecosystems Constrained by Joint CO ₂ and COS Flux Measurements Spielmann, F. M.; Wohlfahrt, G.; Hammerle, A. Geophysical Research Letters, Vol. 46, Issue 10 https://doi.org/10.1029/2019GL082006	journal	May 2019
Inferring CO ₂ sources and sinks from satellite observations: Method and application to TOVS data Chevallier, F.; Fisher, M.; Peylin, P. Journal of Geophysical Research, Vol. 110, Issue D24 https://doi.org/10.1029/2005JD006390	journal	January 2005
Global Carbon Budget 2018 Le Quéré, Corinne; Andrew, Robbie M.; Friedlingstein, Pierre Earth System Science Data, Vol. 10, Issue 4 https://doi.org/10.5194/essd-10-2141-2018	journal	January 2018
A novel correction for biases in forest eddy covariance carbon balance Hayek, Matthew N.; Wehr, Richard; Longo, Marcos Agricultural and Forest Meteorology, Vol. 250-251 https://doi.org/10.1016/j.agrformet.2017.12.186	journal	March 2018
Global atmospheric carbon budget: results from an ensemble of atmospheric CO ₂ inversions Peylin, P.; Law, R. M.; Gurney, K. R. Biogeosciences, Vol. 10, Issue 10 https://doi.org/10.5194/bg-10-6699-2013	journal	January 2013
Seasonality of temperate forest photosynthesis and daytime respiration Wehr, R.; Munger, J. W.; McManus, J. B. Nature, Vol. 534, Issue 7609 https://doi.org/10.1038/nature17966	journal	June 2016
Ecosystem carbon dioxide fluxes after disturbance in forests of North America Amiro, B. D.; Barr, A. G.; Barr, J. G. Journal of Geophysical Research, Vol. 115 https://doi.org/10.1029/2010JG001390	journal	January 2010
The WFDEI meteorological forcing data set: WATCH Forcing Data methodology applied to ERA-Interim reanalysis data Weedon, Graham P.; Balsamo, Gianpaolo; Bellouin, Nicolas Water Resources Research, Vol. 50, Issue 9 https://doi.org/10.1002/2014WR015638	journal	September 2014
Comparing CO2 Storage and Advection Conditions at Night at Different Carboeuroflux Sites Aubinet, M.; Berbigier, P.; Bernhofer, Ch. Boundary-Layer Meteorology, Vol. 116, Issue 1 https://doi.org/10.1007/s10546-004-7091-8	journal	July 2005
Effects of foliage clumping on the estimation of global terrestrial gross primary productivity: FOLIAGE CLUMPING EFFECT ON GLOBAL GPP Chen, Jing M.; Mo, Gang; Pisek, Jan Global Biogeochemical Cycles, Vol. 26, Issue 1 https://doi.org/10.1029/2010GB003996	journal	March 2012
Interactions between nocturnal turbulent flux, storage and advection at an “ideal” eucalypt woodland site McHugh, Ian D.; Beringer, Jason; Cunningham, Shaun C. Biogeosciences, Vol. 14, Issue 12 https://doi.org/10.5194/bg-14-3027-2017	journal	January 2017
Predicting carbon dioxide and energy fluxes across global FLUXNET sites with regression algorithms Tramontana, Gianluca; Jung, Martin; Schwalm, Christopher R. Biogeosciences, Vol. 13, Issue 14 https://doi.org/10.5194/bg-13-4291-2016	journal	January 2016
Satellite chlorophyll fluorescence measurements reveal large-scale decoupling of photosynthesis and greenness dynamics in boreal evergreen forests Walther, Sophia; Voigt, Maximilian; Thum, Tea Global Change Biology, Vol. 22, Issue 9 https://doi.org/10.1111/gcb.13200	journal	June 2016
Reduced solar-induced chlorophyll fluorescence from GOME-2 during Amazon drought caused by dataset artifacts Zhang, Yao; Joiner, Joana; Gentine, Pierre Global Change Biology, Vol. 24, Issue 6 https://doi.org/10.1111/gcb.14134	journal	April 2018
Terrestrial Gross Carbon Dioxide Uptake: Global Distribution and Covariation with Climate Beer, C.; Reichstein, M.; Tomelleri, E. Science, Vol. 329, Issue 5993 https://doi.org/10.1126/science.1184984	journal	July 2010
Towards a more complete quantification of the global carbon cycle Kirschbaum, Miko U. F.; Zeng, Guang; Ximenes, Fabiano Biogeosciences, Vol. 16, Issue 3 https://doi.org/10.5194/bg-16-831-2019	journal	January 2019
Global estimates of evapotranspiration and gross primary production based on MODIS and global meteorology data Yuan, Wenping; Liu, Shuguang; Yu, Guirui Remote Sensing of Environment, Vol. 114, Issue 7 https://doi.org/10.1016/j.rse.2010.01.022	journal	July 2010
Global Precipitation at One-Degree Daily Resolution from Multisatellite Observations Huffman, George J.; Adler, Robert F.; Morrissey, Mark M. Journal of Hydrometeorology, Vol. 2, Issue 1 https://doi.org/10.1175/1525-7541(2001)002<0036:GPAODD>2.0.CO;2	journal	February 2001
Improvements of the MODIS terrestrial gross and net primary production global data set Zhao, Maosheng; Heinsch, Faith Ann; Nemani, Ramakrishna R. Remote Sensing of Environment, Vol. 95, Issue 2 https://doi.org/10.1016/j.rse.2004.12.011	journal	March 2005
Application of an alternative method to derive reliable estimates of nighttime respiration from eddy covariance measurements in moderately complex topography van Gorsel, Eva; Leuning, Ray; Cleugh, Helen A. Agricultural and Forest Meteorology, Vol. 148, Issue 6-7 https://doi.org/10.1016/j.agrformet.2008.01.015	journal	June 2008
Interannual variability in the oxygen isotopes of atmospheric CO2 driven by El Niño Welp, Lisa R.; Keeling, Ralph F.; Meijer, Harro A. J. Nature, Vol. 477, Issue 7366 https://doi.org/10.1038/nature10421	journal	September 2011
A Large and Persistent Carbon Sink in the World's Forests Pan, Y.; Birdsey, R. A.; Fang, J. Science, Vol. 333, Issue 6045 https://doi.org/10.1126/science.1201609	journal	July 2011
Resolving systematic errors in estimates of net ecosystem exchange of CO2 and ecosystem respiration in a tropical forest biome Hutyra, Lucy R.; Munger, J. William; Hammond-Pyle, Elizabeth Agricultural and Forest Meteorology, Vol. 148, Issue 8-9 https://doi.org/10.1016/j.agrformet.2008.03.007	journal	July 2008
Plant functional traits and canopy structure control the relationship between photosynthetic CO ₂ uptake and far-red sun-induced fluorescence in a Mediterranean grassland under different nutrient availability Migliavacca, Mirco; Perez-Priego, Oscar; Rossini, Micol New Phytologist, Vol. 214, Issue 3 https://doi.org/10.1111/nph.14437	journal	February 2017
The WFDEI Meteorological Forcing Data Weedon, Graham P.; Balsamo, G.; Bellouin, N. UCAR/NCAR - Research Data Archive https://doi.org/10.5065/486n-8109	dataset	January 2018
A data-driven analysis of energy balance closure across FLUXNET research sites: The role of landscape scale heterogeneity Stoy, Paul C.; Mauder, Matthias; Foken, Thomas Agricultural and Forest Meteorology, Vol. 171-172 https://doi.org/10.1016/j.agrformet.2012.11.004	journal	April 2013
How does the terrestrial carbon exchange respond to inter-annual climatic variations? A quantification based on atmospheric CO ₂ data Rödenbeck, Christian; Zaehle, Sönke; Keeling, Ralph Biogeosciences, Vol. 15, Issue 8 https://doi.org/10.5194/bg-15-2481-2018	journal	January 2018
Observing terrestrial ecosystems and the carbon cycle from space Schimel, David; Pavlick, Ryan; Fisher, Joshua B. Global Change Biology, Vol. 21, Issue 5 https://doi.org/10.1111/gcb.12822	journal	February 2015
Compensatory water effects link yearly global land CO2 sink changes to temperature Jung, Martin; Reichstein, Markus; Schwalm, Christopher R. Nature, Vol. 541, Issue 7638 https://doi.org/10.1038/nature20780	journal	January 2017
Global atmospheric CO ₂ inverse models converging on neutral tropical land exchange, but disagreeing on fossil fuel and atmospheric growth rate Gaubert, Benjamin; Stephens, Britton B.; Basu, Sourish Biogeosciences, Vol. 16, Issue 1 https://doi.org/10.5194/bg-16-117-2019	journal	January 2019
OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence Sun, Y.; Frankenberg, C.; Wood, J. D. Science, Vol. 358, Issue 6360 https://doi.org/10.1126/science.aam5747	journal	October 2017
Terrestrial gross primary production: Using NIR _V to scale from site to globe Badgley, Grayson; Anderegg, Leander D. L.; Berry, Joseph A. Global Change Biology, Vol. 25, Issue 11 https://doi.org/10.1111/gcb.14729	journal	July 2019
On what scales can GOSAT flux inversions constrain anomalies in terrestrial ecosystems? Byrne, Brendan; Jones, Dylan B. A.; Strong, Kimberly Atmospheric Chemistry and Physics, Vol. 19, Issue 20 https://doi.org/10.5194/acp-19-13017-2019	journal	January 2019
Evaluating the convergence between eddy-covariance and biometric methods for assessing carbon budgets of forests Campioli, M.; Malhi, Y.; Vicca, S. Nature Communications, Vol. 7, Issue 1 https://doi.org/10.1038/ncomms13717	journal	December 2016
Constraints on natural global atmospheric CO2 fluxes from 1860 to 2010 using a simplified explicit forward model Hellevang, Helge; Aagaard, Per Scientific Reports, Vol. 5, Issue 1 https://doi.org/10.1038/srep17352	journal	November 2015
Spatiotemporal patterns of terrestrial gross primary production: A review: GPP Spatiotemporal Patterns Anav, Alessandro; Friedlingstein, Pierre; Beer, Christian Reviews of Geophysics, Vol. 53, Issue 3 https://doi.org/10.1002/2015RG000483	journal	August 2015
Nighttime Flux Correction Aubinet, Marc; Feigenwinter, Christian; Heinesch, Bernard Eddy Covariance https://doi.org/10.1007/978-94-007-2351-1_5	book	November 2011
Widespread inhibition of daytime ecosystem respiration Keenan, Trevor F.; Migliavacca, Mirco; Papale, Dario Nature Ecology & Evolution, Vol. 3, Issue 3 https://doi.org/10.1038/s41559-019-0809-2	journal	February 2019
Deep learning and process understanding for data-driven Earth system science Reichstein, Markus; Camps-Valls, Gustau; Stevens, Bjorn Nature, Vol. 566, Issue 7743 https://doi.org/10.1038/s41586-019-0912-1	journal	February 2019
Important role of forest disturbances in the global biomass turnover and carbon sinks Pugh, Thomas A. M.; Arneth, Almut; Kautz, Markus Nature Geoscience, Vol. 12, Issue 9 https://doi.org/10.1038/s41561-019-0427-2	journal	August 2019
Geostationary Enhanced Temporal Interpolation for CERES Flux Products Doelling, David R.; Loeb, Norman G.; Keyes, Dennis F. Journal of Atmospheric and Oceanic Technology, Vol. 30, Issue 6 https://doi.org/10.1175/JTECH-D-12-00136.1	journal	June 2013
Linking chlorophyll a fluorescence to photosynthesis for remote sensing applications: mechanisms and challenges Porcar-Castell, Albert; Tyystjärvi, Esa; Atherton, Jon Journal of Experimental Botany, Vol. 65, Issue 15 https://doi.org/10.1093/jxb/eru191	journal	May 2014
Recent trends and drivers of regional sources and sinks of carbon dioxide Sitch, S.; Friedlingstein, P.; Gruber, N. Biogeosciences, Vol. 12, Issue 3 https://doi.org/10.5194/bg-12-653-2015	journal	January 2015
Patterns and controls of inter-annual variability in the terrestrial carbon budget Marcolla, Barbara; Rödenbeck, Christian; Cescatti, Alessandro Biogeosciences, Vol. 14, Issue 16 https://doi.org/10.5194/bg-14-3815-2017	journal	January 2017
Towards a standardized processing of Net Ecosystem Exchange measured with eddy covariance technique: algorithms and uncertainty estimation Papale, D.; Reichstein, M.; Aubinet, M. Biogeosciences, Vol. 3, Issue 4 https://doi.org/10.5194/bg-3-571-2006	journal	January 2006
Reviews and syntheses: An empirical spatiotemporal description of the global surface–atmosphere carbon fluxes: opportunities and data limitations Zscheischler, Jakob; Mahecha, Miguel D.; Avitabile, Valerio Biogeosciences, Vol. 14, Issue 15 https://doi.org/10.5194/bg-14-3685-2017	journal	January 2017
Comparing and evaluating process-based ecosystem model predictions of carbon and water fluxes in major European forest biomes Morales, Pablo; Sykes, Martin T.; Prentice, I. Colin Global Change Biology, Vol. 11, Issue 12 https://doi.org/10.1111/j.1365-2486.2005.01036.x	journal	December 2005
Historical carbon dioxide emissions caused by land-use changes are possibly larger than assumed Arneth, A.; Sitch, S.; Pongratz, J. Nature Geoscience, Vol. 10, Issue 2 https://doi.org/10.1038/ngeo2882	journal	January 2017
Memory effects of climate and vegetation affecting net ecosystem CO2 fluxes in global forests Besnard, Simon; Carvalhais, Nuno; Arain, M. Altaf PLOS ONE, Vol. 14, Issue 2 https://doi.org/10.1371/journal.pone.0211510	journal	February 2019
MODIS Collection 5 global land cover: Algorithm refinements and characterization of new datasets Friedl, Mark A.; Sulla-Menashe, Damien; Tan, Bin Remote Sensing of Environment, Vol. 114, Issue 1 https://doi.org/10.1016/j.rse.2009.08.016	journal	January 2010
Stand age and species richness dampen interannual variation of ecosystem-level photosynthetic capacity Musavi, Talie; Migliavacca, Mirco; Reichstein, Markus Nature Ecology & Evolution, Vol. 1, Issue 2 https://doi.org/10.1038/s41559-016-0048	journal	January 2017
On the separation of net ecosystem exchange into assimilation and ecosystem respiration: review and improved algorithm Reichstein, Markus; Falge, Eva; Baldocchi, Dennis Global Change Biology, Vol. 11, Issue 9 https://doi.org/10.1111/j.1365-2486.2005.001002.x	journal	September 2005
Multi-scale evaluation of global gross primary productivity and evapotranspiration products derived from Breathing Earth System Simulator (BESS) Jiang, Chongya; Ryu, Youngryel Remote Sensing of Environment, Vol. 186 https://doi.org/10.1016/j.rse.2016.08.030	journal	December 2016
Implications of structural diversity for seasonal and annual carbon dioxide fluxes in two temperate deciduous forests Tamrakar, Rijan; Rayment, Mark B.; Moyano, Fernando Agricultural and Forest Meteorology, Vol. 263 https://doi.org/10.1016/j.agrformet.2018.08.027	journal	December 2018
Satellite Observations of the Contrasting Response of Trees and Grasses to Variations in Water Availability Walther, Sophia; Duveiller, Gregory; Jung, Martin Geophysical Research Letters, Vol. 46, Issue 3 https://doi.org/10.1029/2018GL080535	journal	February 2019
Separation of net ecosystem exchange into assimilation and respiration using a light response curve approach: critical issues and global evaluation: SEPARATION OF NEE INTO GPP AND RECO Lasslop, Gitta; Reichstein, Markus; Papale, Dario Global Change Biology, Vol. 16, Issue 1 https://doi.org/10.1111/j.1365-2486.2009.02041.x	journal	January 2010
Reflections on the surface energy imbalance problem Leuning, Ray; van Gorsel, Eva; Massman, William J. Agricultural and Forest Meteorology, Vol. 156 https://doi.org/10.1016/j.agrformet.2011.12.002	journal	April 2012
Objective evaluation of surface- and satellite-driven carbon dioxide atmospheric inversions Chevallier, Frédéric; Remaud, Marine; O'Dell, Christopher W. Atmospheric Chemistry and Physics, Vol. 19, Issue 22 https://doi.org/10.5194/acp-19-14233-2019	journal	January 2019
Oxygen isotope anomaly in tropospheric CO2 and implications for CO2 residence time in the atmosphere and gross primary productivity Liang, Mao-Chang; Mahata, Sasadhar; Laskar, Amzad H. Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/s41598-017-12774-w	journal	October 2017
The FLUXCOM ensemble of global land-atmosphere energy fluxes Jung, Martin; Koirala, Sujan; Weber, Ulrich Scientific Data, Vol. 6, Issue 1 https://doi.org/10.1038/s41597-019-0076-8	journal	May 2019
Strong constraint on modelled global carbon uptake using solar-induced chlorophyll fluorescence data MacBean, Natasha; Maignan, Fabienne; Bacour, Cédric Scientific Reports, Vol. 8, Issue 1 https://doi.org/10.1038/s41598-018-20024-w	journal	January 2018
A Survey on Transfer Learning Pan, Sinno Jialin; Yang, Qiang IEEE Transactions on Knowledge and Data Engineering, Vol. 22, Issue 10 https://doi.org/10.1109/TKDE.2009.191	journal	October 2010
Estimation of Global Vegetation Productivity from Global LAnd Surface Satellite Data Yu, Tao; Sun, Rui; Xiao, Zhiqiang Remote Sensing, Vol. 10, Issue 2 https://doi.org/10.3390/rs10020327	journal	February 2018
Sensitivity of atmospheric CO2 growth rate to observed changes in terrestrial water storage Humphrey, Vincent; Zscheischler, Jakob; Ciais, Philippe Nature, Vol. 560, Issue 7720 https://doi.org/10.1038/s41586-018-0424-4	journal	August 2018
Towards a more complete quantification of the global carbon cycle Kirschbaum, Miko U. F.; Zeng, Guang; Ximenes, Fabiano Zenodo https://doi.org/10.5281/zenodo.2556995	dataset	January 2019
FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem–Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities Baldocchi, Dennis; Falge, Eva; Gu, Lianhong Bulletin of the American Meteorological Society, Vol. 82, Issue 11 https://doi.org/10.1175/1520-0477(2001)082<2415:FANTTS>2.3.CO;2	journal	November 2001
A Survey on Gaussian Processes for Earth-Observation Data Analysis: A Comprehensive Investigation Camps-Valls, Gustau; Verrelst, Jochem; Munoz-Mari, Jordi IEEE Geoscience and Remote Sensing Magazine, Vol. 4, Issue 2 https://doi.org/10.1109/MGRS.2015.2510084	journal	June 2016
Effect of spatial sampling from European flux towers for estimating carbon and water fluxes with artificial neural networks: SAMPLING EFFECT ON FLUXES UPSCALING Papale, Dario; Black, T. Andrew; Carvalhais, Nuno Journal of Geophysical Research: Biogeosciences, Vol. 120, Issue 10 https://doi.org/10.1002/2015JG002997	journal	October 2015
Estimating nocturnal ecosystem respiration from the vertical turbulent flux and change in storage of CO2 van Gorsel, Eva; Delpierre, Nicolas; Leuning, Ray Agricultural and Forest Meteorology, Vol. 149, Issue 11 https://doi.org/10.1016/j.agrformet.2009.06.020	journal	November 2009
Model-based analysis of the relationship between sun-induced chlorophyll fluorescence and gross primary production for remote sensing applications Zhang, Yongguang; Guanter, Luis; Berry, Joseph A. Remote Sensing of Environment, Vol. 187 https://doi.org/10.1016/j.rse.2016.10.016	journal	December 2016
Contrasting biosphere responses to hydrometeorological extremes: revisiting the 2010 western Russian heatwave Flach, Milan; Sippel, Sebastian; Gans, Fabian Biogeosciences, Vol. 15, Issue 20 https://doi.org/10.5194/bg-15-6067-2018	journal	January 2018
Atmospheric constraints on gross primary productivity and net ecosystem productivity: Results from a carbon-cycle data assimilation system: BIOSPHERE FLUXES INFERRED FROM A CCDAS Koffi, E. N.; Rayner, P. J.; Scholze, M. Global Biogeochemical Cycles, Vol. 26, Issue 1 https://doi.org/10.1029/2010GB003900	journal	March 2012
Estimation of Terrestrial Global Gross Primary Production (GPP) with Satellite Data-Driven Models and Eddy Covariance Flux Data Joiner, Joanna; Yoshida, Yasuko; Zhang, Yao Remote Sensing, Vol. 10, Issue 9 https://doi.org/10.3390/rs10091346	journal	August 2018
Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses Saleska, S. R. Science, Vol. 302, Issue 5650 https://doi.org/10.1126/science.1091165	journal	November 2003
Global patterns of land-atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations Jung, Martin; Reichstein, Markus; Margolis, Hank A. Journal of Geophysical Research, Vol. 116 https://doi.org/10.1029/2010JG001566	journal	January 2011
Deep Gaussian Process for Crop Yield Prediction Based on Remote Sensing Data You, Jiaxuan; Li, Xiaocheng; Low, Melvin Proceedings of the AAAI Conference on Artificial Intelligence, Vol. 31, Issue 1 https://doi.org/10.1609/aaai.v31i1.11172	journal	February 2017
The CarbonTracker Data Assimilation Shell (CTDAS) v1.0: implementation and global carbon balance 2001–2015 van der Laan-Luijkx, Ingrid T.; van der Velde, Ivar R.; van der Veen, Emma Geoscientific Model Development, Vol. 10, Issue 7 https://doi.org/10.5194/gmd-10-2785-2017	journal	January 2017
Towards a more complete quantification of the global carbon cycle Kirschbaum, Miko U. F.; Zeng, Guang; Ximenes, Fabiano Zenodo https://doi.org/10.5281/zenodo.2556996	dataset	January 2019

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