Max Planck Gesellschaft

Nuno Carvalhais

Scientist
Leader of the Model-Data Integration Group
room: C3.009a (tower)
phone: +49 3641 576225
fax: +49 3641 577200
email: nuno.carvalhais(at)bgc-jena.mpg.de


Research interests:

Dynamics of terrestrial ecosystems; biogeochemical cycles - mainly carbon, until now; model-data fusion approaches; model evaluation/development; remote sensing of vegetation.

Project participation:

Current: GlobBiomass; COREGAL; CRESCENDO
Past: CARBO-Extreme; GeoCarbon; EMBRACE

Peer-reviewed publications:

Schürmann, G., Kaminski, T., Köstler, C., Carvalhais, N., Voßbeck, M., Kattge, J., Giering, R., Rödenbeck, C., Heimann, M., Zaehle, S. (2016). Constraining a land-surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System V1.0. Geoscientific Model Development, 9(9), 2999-3026. doi:10.5194/gmd-9-2999-2016. pdf
Thurner, M., Beer, C., Carvalhais, N., Forkel, M., Santoro, M., Tum, M., Schmullius, C. (2016). Large-scale variation in boreal and temperate forest carbon turnover rate is related to climate. Geophysical Research Letters, 43(9), 4576-4585. doi:10.1002/2016GL068794. pdf
Forkel, M., Carvalhais, N., Rödenbeck, C., Keeling, R., Heimann, M., Thonicke, K., Zaehle, S., Reichstein, M. (2016). Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems. Science, 351(6274), 696-699. doi:10.1126/science.aac4971. pdf
Luo, Y., Ahlström, A., Allison, S. D., Batjes, N. H., Brovkin, V., Carvalhais, N., Chappell, A., Ciais, P., Davidson, E. A., Finzi, A., Georgiou, K., Guenet, B., Hararuk, O., Harden, J. W., He, Y., Hopkins, F., Jiang, L., Koven, C., Jackson, R. B., Jones, C. D., Lara, M. J., Liang, J., McGuire, A. D., Parton, W., Peng, C., Randerson, J. T., Salazar, A., Sierra, C., Smith, M. J., Tian, H., Todd-Brown, K. E. O., Torn, M., van Groenigen, K. J., Wang, Y. P., West, T. O., Wei, Y., Wieder, W. R., Xia, J., Xu, X., Xu, X., Zhou, T. (2016). Towards more realistic projections of soil carbon dynamics by earth system models. Global Biogeochemical Cycles, 30(1), 40-56. doi:10.1002/2015GB005239. pdf
Papale, D., Black, T. A., Carvalhais, N., Cescatti, A., Chen, J., Jung, M., Kiely, G., Lasslop, G., Mahecha, M. D., Margolis, H., Merbold, L., Montagnani, L., Moors, E., Olesen, J. E., Reichstein, M., Tramontana, G., van Gorsel, E., Wohlfahrt, G., Ráduly, B. (2015). Effect of spatial sampling from European flux-towers for estimating carbon and water fluxes with artificial neural networks. Journal of Geophysical Research-Biogeosciences. doi:10.1002/2015JG002997. pdf
Forkel, M., Migliavacca, M., Thonicke, K., Reichstein, M., Schaphoff, S., Weber, U. and Carvalhais, N. (2015). Co-dominant water control on global inter-annual variability and trends in land surface phenology and greenness. Global Change Biology. doi:10.1111/gcb.12950. pdf
Aparício, S., N. Carvalhais, and J. Seixas (2015), Climate change impacts on the vegetation carbon cycle of the Iberian Peninsula—Intercomparison of CMIP5 results. J. Geophys. Res. Biogeosci., 120, 641–660. doi: 10.1002/2014JG002755.pdf
Pérez-Priego, O., Guan, J.-H., Rossini, M., Fava, F., Wutzler, T., Moreno, G., Carvalhais, N., Carrara, A., Kolle, O., Julitta, T., Schrumpf, M., Reichstein, M., Migliavacca, M. (2015). Sun-induced chlorophyll fluorescence and photochemical reflectance index improve remote-sensing gross primary production estimates under varying nutrient availability in a typical Mediterranean savanna ecosystem. Biogeosciences, 12(21), 6351-6367. doi:10.5194/bg-12-6351-2015.pdf
Hashimoto, S., Carvalhais, N., Ito, A., Migliavacca, M., Nishina, K., and Reichstein, M.: Global spatiotemporal distribution of soil respiration modeled using a global database, Biogeosciences, 12, 4121-4132, doi:10.5194/bg-12-4121-2015, 2015. pdf
Migliavacca, M., Reichstein, M., Richardson, A.D., Mahecha, M.D., Cremonese, E., Delpierre, N., Galvagno, M., Law, B.E., Wohlfahrt, G., Black, T.A., Carvalhais, N., Ceccherini, N., Chen, J., Gobron, N., Koffi, E., Munger, J.W., Perez-Priego, O., Robustelli, M., Tomelleri, E. and Cescatti, A. (2015) Influence of physiological phenology on the seasonal pattern of ecosystem respiration in deciduous forests. Global Change Biology, doi:10.1111/gcb.12671.pdf
Wutzler T & Carvalhais N (2014) Balancing multiple constraints in model-data integration: Weights and the parameter-block approach. Journal of Geophysical Research - Biogeosciences, doi: 10.1002/2014jg002650pdf
Sus, O., Poyatos,R., Barba, J., Carvalhais, N., Llorens, P., Williams, M. and Vilalta, J.M. (2014), Time variable hydraulic parameters improve the performance of a mechanistic stand transpiration model. A case study of Mediterranean Scots pine sap flow data assimilation, Agricultural and Forest Meteorology, DOI: 10.1016/j.agrformet.2014.08.009.pdf
Carvalhais, N., M. Forkel, M. Khomik, J. Bellarby, M. Jung, M. Migliavacca, M. Μu, S. Saatchi, M. Santoro, M. Thurner, U. Weber, B. Ahrens, C. Beer, A. Cescatti, J.T. Randerson and M. Reichstein (2014), Global covariation of carbon turnover times with climate in terrestrial ecosystems, Nature, 514, 213-217, doi:10.1038/nature13731pdf
Beer, C., Weber, U., Tomelleri, E., Carvalhais, N., Mahecha, M.D. and Reichstein, M. (2014), Harmonized European long-term climate data for assessing the effect of changing temporal variability on land-atmosphere CO2 fluxes. Journal of Climate. doi:10.1175/JCLI-D-13-00543.1 pdf
Neigh, C.S., Bolton, D.K., Diabate, M., Williams, J.J. and Carvalhais, N. (2014), An Automated Approach to Map the History of Forest Disturbance from Insect Mortality and Harvest with Landsat Time-Series Data. Remote Sens. 6, no. 4: 2782-2808. doi:10.3390/rs6042782 pdf
Thurner, M., Beer, C., Santoro, M., Carvalhais, N., Wutzler, T., Schepaschenko, D., Shvidenko, A., Kompter, E., Ahrens, B., Levick, S. R. and Schmullius, C. (2013), Carbon stock and density of northern boreal and temperate forests. Global Ecology and Biogeography. doi: 10.1111/geb.12125 pdf
Forkel, M., Carvalhais, N., Schaphoff, S., v. Bloh, W., Migliavacca, M., Thurner, M., and Thonicke, K.: Identifying environmental controls on vegetation greenness phenology through model–data integration, Biogeosciences, 11, 7025-7050, doi:10.5194/bg-11-7025-2014, 2014.pdf
Forkel, M., Carvalhais, N., Verbesselt, J., Mahecha, M.D., Neigh, C.S.R., and M. Reichstein (2013): Trend Change Detection in NDVI Time Series: Effects of Inter-Annual Variability and Methodology, Remote Sensing, 5, 2113-2144. pdf
Badawy, B., Rödenbeck, C., Reichstein, M., Carvalhais, N., and Heimann, M.: Technical Note: The Simple Diagnostic Photosynthesis and Respiration Model (SDPRM), Biogeosciences, 10, 6485-6508, doi:10.5194/bg-10-6485-2013, 2013. pdf
Benali, A., Carvalho, A.C., Nunes, J.P., Carvalhais, N. and Santos, A. (2012) Estimating air surface temperature in Portugal using MODIS LST data. Remote Sensing of Environment, 124, 108-121. 
Luo, Y.Q., Randerson, J.T., Abramowitz, G., Bacour, C., Blyth, E., Carvalhais, N., Ciais, P. Dalmonech, D., Fisher, J.B., Fisher, R., Friedlingstein, P., Hibbard, K., Hoffman, F., Huntzinger, D., Jones, C. D., Koven, C., Lawrence, D., Li, D.J., Mahecha, M., Niu, S.L., Norby, R., Piao, S.L., Qi, X., Peylin, P., Prentice, I.C., Riley, W., Reichstein, M., Schwalm, C., Wang, Y.P., Xia, J.Y., Zaehle, S. and Zhou, X.H. (2012) A framework for benchmarking land models. Biogeosciences, 9, 3857-3874, 2012. pdf
Wu, J., van der Linden, L., Lasslop, G., Carvalhais, N., Pilegaard, K., Beier, C. and Ibrom A. (2012) Effects of climate variability and functional changes on the interannual variation of the carbon balance in a temperate deciduous forest. Biogeosciences, 9, 13-28. pdf
Mahecha, M.D., Reichstein, M., Carvalhais, N., Lasslop, G., Lange, H., Seneviratne, S.I., Vargas, R., Ammann, C., Arain, M.A., Cescatti, A., Janssens, I.A., Migliavacca, M., Montagnani, L., and Richardson, A.D. (2011) Response to comment on "Global Convergence in the Temperature Sensitivity of Respiration at Ecosystem Level". Science, 331, 1265. doi:10.1126/science.1197033.pdf
Migliavacca, M., Reichstein, M., Richardson, A. D., Colombo, R., Sutton, M. A., Lasslop, G., Wohlfahrt, G., Tomelleri, E., Carvalhais, N., Cescatti, A., Mahecha, M. D., Montagnani, L., Papale, D., Zaehle, S., Arain, A., Arneth, A., Black, T. A., Dore, S., Gianelle, D., Helfter, D., Hollinger, D., Kutsch, W. L., Law, B. E., Lafleur, P. M., Nouvellon, Y., Rebmann, C., Ribeiro da Rocha, H., Rodeghiero, M., Roupsard, O., Sebastià, M. T., Seufert, G., Soussana, J. F., and M. K. van der Molen (2010) Semi-Empirical Modeling of Abiotic and Biotic Factors Controlling Ecosystem Respiration across Eddy Covariance Sites, Global Change Biology, doi:10.1111/j.1365-2486.2010.02243.x. 
Carvalhais, N., Reichstein, M., Ciais, P., Collatz, G.J., Mahecha, M.D., Montagnani, L., Papale, D., Rambal, S., and J. Seixas (2010) Identification of vegetation and soil carbon pools out of equilibrium in a process model via eddy covariance and biometric constraints, Global Change Biology, 16, 2813–2829, doi:10.1111/j.1365-2486.2010.02173.x.pdf
Beer, C., Reichstein, M. , Tomelleri, E., Ciais, P., Jung, M., Carvalhais, N., Rodenbeck, C., Arain, M.A., Baldocchi, D., Bonan, G.B., Bondeau, A., Cescatti, A., Lasslop, G., Lindroth, A., Lomas, M., Luyssaert, S., Margolis, H., Oleson, K.W., Roupsard, O., Veenendaal, E., Viovy, N., Williams, C., Woodward, F.I., and D. Papale (2010) Terrestrial Gross Carbon Dioxide Uptake: Global Distribution and Covariation with Climate, Science, 329, 834-838, doi:10.1126/science.1184984. 
Mahecha, M.D., Reichstein, M., Carvalhais, N., Lasslop, G., Lange, H., Seneviratne, S.I.,, Vargas, R., Ammann, C., Arain, M.A., Cescatti, A., Janssens, I.A., Migliavacca, M., Montagnani, L., and A.D. Richardson (2010) Global Convergence in the Temperature Sensitivity of Respiration at Ecosystem Level, Science, 329, 838-840, doi:10.1126/science.1189587. 
Mahecha, M.D., Reichstein, M., Jung, M., Seneviratne, S.I., Zaehle, S., Beer, C., Braakhekke, M.C., Carvalhais, N., Lange, H., Le Maire, G., and E. Moors (2010) Comparing observations and process-based simulations of biosphere-atmosphere exchanges on multiple time scales. Journal of Geophysical Research-Biogeosciences, 115, G02003, doi:10.1029/2009JG001016.pdf
Carvalhais, N., Reichstein, M., Collatz, G. J., Mahecha, M. D., Migliavacca, M., Neigh, C., Tomelleri, E., Benali, A. A., Papale, D., and J. Seixas (2010) Deciphering the Components of Regional Net Ecosystem Fluxes Following a Bottom-up Approach for the Iberian Peninsula, Biogeosciences, 7, 3707-3729, doi:10.5194/bg-7-3707-2010.pdf
Seixas, J., Carvalhais, N., Nunes, C., and A.A. Benali (2009) Comparative analysis of MODIS-FAPAR and MERIS-MGVI datasets: Potential impacts on ecosystem modeling, Remote Sensing of the Environment, 113(12), 2547-2559, doi:10.1016/j.rse.2009.07.018. 
Williams, M., Richardson, A. D., Reichstein, M., Stoy, P. C., Peylin, P., Verbeeck, H., Carvalhais, N., Jung, M., Hollinger, D. Y., Kattge, J., Leuning, R., Luo, Y., Tomelleri, E., Trudinger, C. M., and Y.-P. Wang (2009) Improving land surface models with FLUXNET data, Biogeosciences, 6, 1341-1359, doi:10.5194/bg-6-1341-2009.pdf
Carvalhais, N., Reichstein, M., Seixas, J., Collatz, G.J., Pereira, J.S., Berbigier, P., Carrara, A., Granier, A., Montagnani, L., Papale, D., Rambal, S., Sanz, M.J., and R. Valentini (2008), Implications of the Carbon Cycle Steady State Assumption for Biogeochemical Modeling Performance and Inverse Parameter Retrieval, Global Biogeochemical Cycles, 22, GB2007, doi:10.1029/2007GB003033.pdf
Mahecha, M.D., Reichstein, M., Lange, H., Carvalhais, N., Bernhofer, C., Grünwald, T., Papale, D., and G. Seufert (2007) Characterizing ecosystem-atmosphere interactions from short to interannual time scales. Biogeosciences, 4, 743–758, doi:10.5194/bg-4-743-2007.pdf
Nunes, J.P., Vieira, G., Seixas, J., Gonçalves, P., and N. Carvalhais (2005) Evaluating the MEFIDIS model for runoff and soil erosion prediction during rainfall events. CATENA, 62 (2-3), 210-228, doi:10.1016/j.catena.2005.03.005. 

Book chapters:

Reichstein, M., Richardson, A.D., Migliavacca, M. and Carvalhais, N (2014) Plant–Environment Interactions Across Multiple Scales, in "Ecology and the Environment", The Plant Sciences 8, 1-27, R.K. Monson (ed.), DOI 10.1007/978-1-4614-7501-9_22.pdf

Selected Conference Contributions:

Carvalhais, N., Reichstein, M., Collatz, G.J., Mahecha, M., Montagnani, L., Papale, D., Rambal, S., and J. Seixas (2010) Addressing the carbon cycle steady state assumption: learning from multiple constraints approaches, European Geosciences Union General Assembly, Vienna, Austria, 02 – 07 May.
Schaefer, K., Peters, W., Carvalhais, N., and J. Miller (2009) Estimating Terrestrial Wood Biomass from Observed Concentrations of Atmospheric Carbon Dioxide, in Eight International Carbon Dioxide Conference, Jena, Germany, September 13-19.
Mahecha, M.D., Reichstein, M., Jung, M., Seneviratne, S.I., Zaehle, S., Beer, C., Braakhekke, M.C., Carvalhais, N., Lange, H., Le Maire, G., and E. Moors (2009) Comparing Observations and Process–Based Simulations of Biosphere–Atmosphere Exchanges on Multiple Time Scales, in Eight International Carbon Dioxide Conference, Jena, Germany, September 13-19.
Badawy, B., Rödenbeck, C., Reichstein, M., Jung, M., Carvalhais, N., and M. Heimann (2009) Quantifying Carbon Processes of the Terrestrial Biosphere in a Global Atmospheric Inversion using in-situ and remote sensing data, in Eight International Carbon Dioxide Conference, Jena, Germany, September 13-19.
Carvalhais, N., Reichstein, M., Collatz, G.J., Mahecha, M., Migliavacca, M., Neigh, C., Seixas, J. and E. Tomelleri (2009) Implications of the ecosystem steady state assumption for NEP estimates from site level to regional scales, in Eight International Carbon Dioxide Conference, Jena, Germany, September 13-19.
Mahecha, M. D., Jung, M., Reichstein, M., Beer, C., Brakhekke, M., Carvalhais, N., Lange, H., Lasslop, G., Le Maire, G., Seneviratne, S. I. and M. Vetter (2008) Systematic Land-Surface-Model Performance Evaluation on different time scales, Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract B34A-06.
Schaefer, K., Peters, W., Carvalhais, N., van der Werf, G. and J. Miller (2008) Estimating Terrestrial Wood Biomass from Observed Concentrations of Atmospheric Carbon Dioxide, Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract B33A-0399.
Carvalhais, N., Reichstein, M., and J. Seixas (2008) Uncertainty analysis of net ecosystem fluxes over the Iberian Peninsula, European Geosciences Union General Assembly, Vienna, Austria, 13 – 18 April 2008.
Carvalhais, N., Reichstein, M., Seixas, J., Collatz, G.J., Pereira, J.S., Berbigier, P., Carrara, A., Granier, A., Montagnani, L., Papale, D., Rambal, S., Sanz, M.J., and R. Valentini (2007) Carbon Cycle Steady State Assumption Impacts in Biogeochemical Modeling Inverse Parameter Retrieval and Implications for Regional Net Ecosystem Fluxes Estimates, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract B41F-07.
Neigh, C.S., Carvalhais, N., and G.J. Collatz (2007) Carbon Consequences of Positive NDVI Anomalies in North America, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract B43D-1605.
Seixas, J., Carvalhais, N., Nunes, C., and A.A. Benali (2007) Ecosystem Production Modelling in the Iberian Peninsula, using MERIS Datasets, Envisat Symposium 2007, April 23-27.
Gouveia, C., Trigo, R.M., Seixas, J., and N. Carvalhais (2007) Using AVHRR data to assess the impact of the NAO on Iberian vegetation dynamics and NPP estimates. EGU General Assembly 2007, April 15-20.

Workshop on NOVEL DATA MINING STRATEGIES
for EXPLORING BIOGEOCHEMICAL CYCLES
and BIOSPHERE-ATMOSPHERE INTERACTIONS

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Workshop on the STATE OF THE BIOSPHERE
Frascati, Nov. 2010

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