at the Max Planck Institute for Biogeochemistry

Miguel Mahecha

Former leader of the research group Empirical Inference of the Earth System (until April 2020)
Professor at the Remote Sensing Center for Earth System Research, Leipzig University
Guest scientist at the MPI-BGC
email: mmahecha(at)bgc-jena.mpg.de and miguel.mahecha(at)uni-leipzig.de

For latest news, better visit my research group website: "Empirical Inference in the Earth System"

Current research Interests:

Climate extremes and ecosystem functioning:
- How do ecosystems reespond to hydometeorological extremes
- Detection and attribution of extremes in in-situ and Earth observations
Intrinsic functioning of terrestrial ecosystems:
- Empirical description of cross relationships in biogeochemcial fluxes (FLUXNET)
- Quantifying unconfounded sensitivities of ecosystem fluxes
- Performance evaluation of land surface models
Biogeography and ecosystem functioning:
- Value of macroecological approaches in the analysis of ecosystem functioning (incl. trait data, functional diversity)
- Role of plant traits and functional diversity in biogeochemical cycles
Methodological aspects:
- Time series analysis: spatiotemporal environmental data
- Nonlinear dimensionality reduction (e.g. for vegetation data, remote sensing data)
- Extrapolation (e.g. upscaling plant traits for Europe)

Actual projects and initiatives:

	BACI: Detecting changes in essential ecosystem and biodiversity properties - towards a Biosphere Atmosphere Change Index project is funded by the European Union's Horizon 2020 research and innovation programme (2015-2019); Scientific coordination of the consortium.
	The Earth System Data Lab project (successor of the Coupled Atmosphere-Biospher virtual LAB project) funded by the European Space Agency (ESA) (2017-2019); Scientific coordination of the consortium.
	DAMOCLES: Understanding and modeling compound climate and weather events (e.g. hazards such as floods, wildfires, heatwaves, and droughts resulting from a combination of interacting processes. This is a COST action facilitating exchange among scholars; MC Member for Germany; Leader of WG3 "A meta-database of impact data".
	The TRUSTEE project is a Mari Sklodowska-Curie Innovative Training Network (2017-2020) designed to train a new generation of scientists with complementary and interdisciplinary skills in ecosystem modelling, plant physiology, and remote sensing. Co-PI.
	The Platform for Ecological Analyses on Colombian Ecosystems PEACE is an initiative by Colombian scientists to develop a sustainable concept for monitoring Colombian ecosystems in the post-conflict era. Initial fundunding by the BMBF, ESA, an iLEAPS have made this possible. Future work in tandem with GEO-BON Colombia and relevant projects has started.

Membership:

	iLEAPS is a Global Research Project of Future Earth providing understanding of how interacting physical, chemical and biological processes transport and transform energy and matter through the land-atmosphere interface. Since 2018 I am member of the Scientific Steering Commitee.
	The BON Colombia is one of the regional hubs of the Group of Earth Observations - Biodiversity Observation Network; GEO BON. I participate in this initiative since 2017 to promote the use of a regional Earth Observations Cubes.

Teaching this semester (WS 18/19)

All materials for the lecture and exercise Introduction to statistics (GEOG142) can be accessed from the online learning platform moodle. For any consultation on the course please contact me only via mmahecha(at)uni-jena.de.
All materials for the earlier lectures Biogeography (MEES.E5) can be downloaded from the websites of the institute for botany. For any consultation on the student contributions please contact me via email.

Publications in journals (and proceedings if peer reviewed):

Forthcomming / In open discussion

Flach, M., Brenning, A., Gans, F., Reichstein, M., Sippel, S. & Mahecha, M.D. Vegetation modulates the impact of climate extremes on gross primary production. Biogeosciences Discussion, (in review) https://doi.org/10.5194/bg-2020-80.

Kraemer, G., Camps-Valls, G., Reichstein, M. & Mahecha, M.D. Summarizing the state of the terrestrial biosphere in few dimensions. Biogeosciences Discussion, (accepted) https://doi.org/10.5194/bg-2019-307.

Kraemer, G., Reichstein, M., Camps-Valls, G., Smits, J. & Mahecha, M.D. The Low Dimensionality of Development. Social Indicators.

Pabon-Moreno, D.E, Musavi, T., Migliavacca, M., Reichstein, M., Römermann, C. & Mahecha, M.D. Ecosystem physio-phenology revealed using circular statistics. Biogeosciences Discussion, doi:10.5194/bg-2019-403.

2020

Heckel, K., Urban, M., Schratz, P., Mahecha, M.D., Schmullius, C. Predicting forest cover in varying ecosystems: The potential of multi-source Sentinel-1 and -2 data fusion. Remote Sensing, 12, 302.

Krich, C., Runge, J., Miralles, D.G., Migliavacca, M., Perez-Priego, O., El-Madany, T., Carrara, A. & Mahecha, M.D. (in press) Causal networks of biosphere–atmosphere interactions. Biogeosciences Discussion, doi:10.5194/bg-2019-297.

Linscheid, N., Estupinan-Suarez, L.M, Brenning, A., Carvalhais, N., Cremer, F., Gans, F., Rammig, A., Reichstein, M., Sierra, C.A. & Mahecha, M.D. Towards a global understanding of vegetation–climate dynamics at multiple time scales . Biogeosciences, 17, 945–962, 10.5194/bg-17-945-2020, 2020.

Mahecha, M.D., Gans, F., Brandt, G., Christianse, R., Cornell, S.E., Fomferra, N., Kraemer, G., Peters, J., Bodesheim, P., Camps-Valls, G., Donges, D.F., Dorigo, W., Estipinan-Suarez, L., Gutierrez-Velez, V.H., Gutwin, M., Jung, M., Londono, M.C., Miralles, D.G., Papastefanou, P., & Reichstein, M. Earth system data cubes unravel global multivariate dynamics . Earth System Science, 11, 201–234, doi:10.5194/esd-11-201-2020, 2020.

2019

Guanche García, Y., Shadaydeh, M., Mahecha, M.D. & Denzler, J. Attribution of Multivariate Extreme Events. Proceeeding of the 9th Climate Informatics Workshop, 1-4.

Ma, X., Mahecha, M.D., Migliavacca, M., van der Plas, F., Benavidesd, R., Ratcliffee, S., Kattge, J., Richter, R., Musavi, T., Baeteng, L., Barnoaieah, I., Bohn, F., Bouriaud, O., Bussotti, F., Coppi, A., Domisch, T., Huth, A., Jaroszewicz, B., Joswig, J., Pabon-Moreno, D.E., Papale, D., Selvi, F., Vaglio Laurin, G., Valladares, F., Reichstein, M. & Wirth, C. Inferring plant functional diversity from space: the potentials of Sentinel-2. Remote Sensing of Environment, 233, 111368, doi:10.1016/j.rse.2019.111368.

Mahecha, M.D., Guha-Spair, D., Smits, J., Gans, F., Kraemer, G. Data challenges limit our global understanding of humanitarian disasters triggered by climate extremes. In Sillmann, J. & Sippel, S. (editors) Climate Extremes and their Implications for Impact and Risk Assessment, pp 243-257, doi:https://doi.org/10.1016/B978-0-12-814895-2.00013-6.

Runge, J., Bathiany, S., Bollt, E., Camps-Valls, G., Coumou, D., Deyle, E., Glymour, C., Kretschmer, M., Mahecha, M.D., Muñoz-Marí, M., van Nes, E., Peters, J., Quax, R., Reichstein, M., Scheffer, M., Schölkopf, B., Spirtes, P., Sugihara, G., Sun, J., Zhang, K., Zscheischler, J. Inferring causation from time series in Earth system sciences. Nature Communications, 10, 2553, doi:10.1038/s41467-019-10105-3.

Requena-Mesa, C., Reichstein, M., Mahecha, M., Kraft, B. and Denzler, J., Predicting Landscapes from Environmental Conditions Using Generative Networks. In German Conference on Pattern Recognition (pp. 203-217). Springer, Cham.

Shadaydeh, M., Denzler, J., Guanche García, Y., & Mahecha, M.D. Time-frequency causal inference uncovers anomalous events in environmental systems. German Conference on Pattern Recognition, 499-512.

2018

Babst, F., Bodesheim, P., Charney, N., Friend, A.D., .Girardin, M.P., Klesse, S., Moore, D.J.P., Seftigen, K., Björklund, J., Bouriaud, O., Dawson, A., DeRose, J., Dietze, M.C., Eckes, A.H., Enquist, B., Frank, D.E., Mahecha, M.D., Poulter, B. & Evans, M.E.K. When tree rings go global: Challenges and opportunities for retro- and prospective insight. Quaternary Science Reviews, 197, 1-20 doi:10.1016/j.quascirev.2018.07.009.

+Bodesheim, P., Jung, M., Mahecha, M.D. & Reichstein, M. Upscaled diurnal cycles of land-atmosphere fluxes: a new global half-hourly data product. Earth System Science Data, 10, 1327-1365 10.5194/essd-10-1327-2018.

Bruelheide, H. et 104 authors including Mahecha, M.D. Global trait–environment relationships of plant communities. Nature Ecology and Evolution, 2, 1906-1917 doi:10.1038/s41559-018-0699-8.

Cremer, F., Urbazaev, M., Berge, C., Mahecha, M.D., Schmulius, C., & Thiel, C. An image transform based on temporal decomposition. Geoscience and Remote Sensing Letters, 15, 537-541 doi:10.1109/LGRS.2018.2791658

Guanche García, Y., Shadaydeh, M., Mahecha, M.D. and Denzler, J. Extreme anomaly event detection in biosphere using linear regression and a spatiotemporal MRF modelNatural Hazards, doi:10.1007/s11069-018-3415-8.

+Flach, M., Sippel, S., Gans, F., Bastos, A., Brenning, A., Reichstein, M. and Mahecha, M.D. Contrasting biosphere responses to hydrometeorological extremes: revisiting the 2010 western Russian Heatwave . Biogeosciences, 15, 6067-6085, doi:10.5194/bg-15-6067-2018.

+Kraemer, G., Reichstein, M., and Mahecha, M.D. imRed and coRanking-Unifying Dimensionality Reduction in R. The R Journal, 10, 342-358 https://journal.r-project.org/archive/2018/RJ-2018-039/RJ-2018-039.pdf.

+Sippel, S., El-Madany, T.S., Migliavacca, M., Mahecha, M.D., Carrara, A., Flach, M., Kaminski, T., Otto, F.E.L., Thonicke, K., Vossbeck, M. and Reichstein, M. Warm winter, wet spring, and an extreme response in ecosystem functioning on the Iberian Peninsula. Ch 16. In Explaining Extreme Events of 2016 from a Climate Perspective. Bulletin of the American Meteorological Society, 99, 88-85, link.

Sippel, S., Reichstein, R., Ma, X., Mahecha, M.D., Lange, H., Flach, M. & Frank, D. Drought, heat, and the carbon cycle: A review. Current Climate Change Reports, doi:10.1007/s40641-018-0103-4.

+von Buttlar, J., Zscheichler, J., Rammig, A., Sippel, S., Reichstein, M., Knohl, A., Jung, M., Menzer, O., Arain, M.A., Buchmann, N., Cescatti, A., Gianelle, A., Kieley, G., Law, B.E., Magliulo, V., Margolis, H., McCaughey, H., Merbold, L., Migliavacca, M., Montagnani, L., Oechel, W., Pavelka, M., Peichl, M., Rambal, S., Raschi, A., Scott, R.L., van Gorsel, E., Varlagin, A., Wohlfahrt, G. and Mahecha, M.D. Impacts of droughts and extreme temperature events on gross primary production and ecosystem respiration: a systematic assessment across ecosystems and climate zones. Biogeosciences, 5, 1293-1318, doi.org/10.5194/bg-15-1293-2018.

2017

Babst, F., Poulter, B., Bodesheim, P., Mahecha, M.D. & Frank, D.C. Improved tree-ring archives will support earth-system science. Nature Ecology & Evolution, 1, 0008, doi:10.1038/s41559-016-0008.

+Flach, M., Gans, F., Brenning, A., Denzler, J., Reichstein, M., Rodner, E., Bathiany, S., Bodesheim, P., Guanche, Y., Sippel, S., and Mahecha, M.D. Multivariate Anomaly Detection for Earth Observations: A Comparison of Algorithms and Feature Extraction Techniques. Earth System Dynamics, 8, 677-696, doi:10.5194/esd-8-677-2017.

+Ilie, I., Dittrich, P., Carvalhais, N., Jung, M., Heinemeyer, A., Migliavacca, M., Morison, J.I.L., Sippel, S., Subke, J.-A., Wilkinson, M. and Mahecha, M.D. Reverse engineering model structures for soil and ecosystem respiration: the potential of gene expression programming . Geoscientific Model Development, 10, 3519-3545, doi.org/10.5194/gmd-10-3519-2017.

Kwon, M. J., Beulig, F., Ilie, I., Wildner, M., Küsel, K., Merbold, L., Mahecha, M. D., Zimov, N., Zimov, S. A., Heimann, M., Schuur, E. A. G., Kostka, J. E., Kolle, O., Hilke, I. & Göckede, M. Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain. Global Change Biology, 23, 2396-2412 doi:10.1111/gcb.13558

Mahecha, M.D., Gans, F., Sippel, S., Donges, J.F., Kaminski, T., Metzger, S., Migliavacca, M., Papale, D., Rammig, A., Zscheischler, J., Detecting impacts of extreme events with ecological in-situ monitoring networks. Biogeosciences, 14, 4255-4277, doi.org/10.5194/bg-14-4255-2017.

Mathieu, P.-P., Borgeaud, M., Desnons, Y.-L., Rast, M., Brockmann, C., See, L., Fritz, S., Kapur, R., Mahecha, M. D. & Benz, U. The ESA's Earth Observation Open Science Program. IEEE Geoscience and Remote Sensing Magazine, 5, 86--96, doi:10.1109/MGRS.2017.2688704.

+Musavi, T., Migliavacca, M., Reichstein, M., Kattge, J., Wirth, C., Black, T.A., Janssens, I., Knohl, A., Loustau, D., Roupsard, O., Varlagin, A., Rambal, S., Cescatti, A., Gianelle, D., Kondo, H., Tamrakar, R. & Mahecha, M.D. Stand age and species richness dampen interannual variation of ecosystem-level photosynthetic capacity. Nature Ecology & Evolution, 1, 0048, doi:10.1038/s41559-016-0048.

Pappas, C., Mahecha, M.D., Frank, D.C., Babst, F., Koutsoyiannis, D. Ecosystem functioning is enveloped by hydrometeorological variability. Nature Ecology & Evolution, 1, doi:10.1038/s41559-017-0277-5.

Sierra, C. A., Mahecha, M.D., , Poveda, G., Álvarez-Dávila, E., Gutierrez, V., Reu, B., Feilhauer, H., Anáya, J., Armenteras, D., Benavides, A.M., Buendia, C., Duque, A., Estupiñan-Suarez, L.M., González, C., Gonzalez-Caro, S., Jimenez, R., Kraemer, G., Londoño, M.C., Orrego, S.A., Posada, J.M., Ruiz-Carrascal, D., Skowronek, S. Monitoring ecological change during rapid socio-economic and political transitions: Colombian ecosystems in the post-conflict era. Environmental Science and Policy, 76, 40-49, doi.org/10.1016/j.envsci.2017.06.011.

+Sippel, S., Forkel, M., Rammig, A. Thonicke, K., Flach, M., Heimann, M., Otto, F., Reichstein, M. & Mahecha, M.D. Contrasting and interacting changes in simulated spring and summer carbon cycle extremes in European ecosystems Environmental Research Letters, 2, 075006, doi:10.1088/1748-9326/aa7398.

+Sippel, S. Zscheischler, J., Mahecha, M.D., Orth, R., Reichstein, M., Vogel, M., and Seneviratne, S.I. Refining multi-model projections of temperature extremes by evaluation against land–atmosphere coupling diagnostics. Earth System Dynamics, 8, 387-403, doi:10.5194/esd-8-387-2017.

+Sippel, S., Zscheischler, J., Hermann, M., Lange, H., Mahecha, M.D., Van Oldenburg, G.J., Otto, F.E.L., and Reichstein, M. Have precipitation extremes and annual totals been increasing in the world's dry regions over the last 60 years? Hydrology and Earth System Sciences, 21, 441-458 doi:10.5194/hess-21-441-2017.

Wi, X., Liu, H., Li, X., Tian, Y. and Mahecha, M.D. Responses of Winter Wheat Yields to Warming-Mediated Vernalization Variations Across Temperate Europe. Frontiers in Ecology and Evolution 5, 126

Zscheischler, J., Mahecha, M.D., Avitabile, V., Calle, L., Carvalhais, N., Ciais, P., Gans, F., Gruber, N., Hartmann, J., Herold, M., Ichs, K., Jung, M., Landschützer, P., Laruelle, G.G., Lauerwald, R., Papale, D., Peylin, P., Poulter, B., Ray, D., Renier, P., Rödenbeck, C., Roman-Cuesta, R.M., Schwalm, C., Tramontana, G., Tyukavina, A.T., Valentini, R., van der Werf, G., West, T.O., Wolf, J.E., and Reichstein, M. Reviews and syntheses: An empirical spatiotemporal description of the global surface–atmosphere carbon fluxes: opportunities and data limitations . Biogeosciences, 14, 3685-3703, doi:10.5194/bg-14-3685-2017.

2016

Dawson, M.N., Axmacher, J.C., Beierkuhnlein, C., Blois, J., Bradly, B.A., Cord, A.F., Dengler, J., He, K.S., Heaney, L.R., Jansson, R., Mahecha, M.D., Myers, C., Nogues-bravo, D., Papadopoulou, A., Reu, B., Rodrigues-Sanches, F., Steinbauer, M.J., Stigall, A., Tuanmu, M.-N., Gavin, D.G. A second horizon scan of biogeography: Golden ages, Midas touches, and the Red Queen. Frontiers of Biogeography, 8.4, e29770, https://doi.org/10.21425/F58429770.

Díaz, S, Kattge, J., Cornelissen, J. H. C., Wright, I. J., Lavorel, S., Dray, S., Reu, B., Kleyer, M., Wirth, C., Prentice, I. C., Garnier, E., Bönisch, G., Westoby, M., Poorter, H., Reich, P. B., Moles, A. T., Dickie, J., Gillison, A. N., Zanne, A. E., Chave, J., Wright, S. J., Sheremetev, S. N., Jactel, H., Baraloto, C., Cerabolini, B., Pierce, S., Shipley, B., Kirkup, D., Casanoves, F., Joswig, J. S., Günther, A., Falczuk, V., Rüger, N., Mahecha, M. D., Gorné, L. D. The global spectrum of plant form and function, Nature, 529, 167–171. doi:10.1038/nature16489.

+Musavi, T. S., Migliavacca, M., van de Weg, M. J., Kattge, J., Wohlfahrt, G., van Bodegom, P., Reichstein, M., Bahn, M., Carrara, A., Domingues, T., Gavazzi, M., Gianelle, D., Gimeno, C., Granier, A., Gruening, C., Havránková, K., Herbst, M., Hrynkiw, C., Kalhori, A., Kaminski, T., Klumpp, K., Kolari, P., Longdoz, B., Minerbi, S., Montagnani, L., Moors, E., Oechel, W., Reich, P., Rohatyn, S., Rossi, A., Rotenberg, E., Varlagin, A., Wilkinson, M., Wirth, C., Mahecha, M. D. Potential and limitations of inferring ecosystem photosynthetic capacity from leaf functional traits. Ecology and Evolution. doi:10.1002/ece3.2479.

Rodner, E., Barz, B., Guanche-Garcia, Y., Flach, M., Mahecha, M. D., Bodesheim, P., Reichstein, M., and Denzler, J., Maximally Divergent Intervals for Anomaly Detection. ICML Workshop on Anomaly Detection. New York, USA.

+Sippel, S., Otto, F. E. L., Forkel, M., Allen, M. R., Guillod, B. P., Heimann, M., 'Reichstein, M., Seneviratne, S. I., Thonicke, K. & Mahecha, M.D. A novel bias correction methodology for climate impact simulations. Earth System Dynamics, 7, 71-88, doi:10.5194/esd-7-71-2016.

+Sippel, S., Lange, H., Mahecha, M.D., Hauhs, M., Bodesheim, P., Kaminski, T., Gans, F., Rosso, O.A. Diagnosing the Dynamics of Observed and Simulated Ecosystem Gross Primary Productivity with Time Causal Information Theory Quantifiers. PLoS ONE 11: e0164960. , doi:10.1371/journal.pone.0164960.

2015

Camps-Valls, G., Jung, M., Ichii, K., Papale, D., Tramontana, G., Bodesheim, P., Schwalm, C., Zscheischler, J., Mahecha, M.D., & Reichstein, M., Ranking drivers of global carbon and energy fluxes over land. IEEE International Symposium on Geoscience and Remote Sensing (IGARSS). 4416-4419 doi:10.1109/IGARSS.2015.7326806.

Frank, D., Reichstein, M., Bahn, M., Frank, D., Mahecha, M.D., Smith, P, Thonike, K., van der Velde, M., Vicca, S., Babst, F., Beer, C, Buchmann, N., Canadell, J.G., Ciais, P., Cramer, W., Ibrom, A.,m Miglietta, F., Poulter, B., Rammig, A., Seneviratne, S.I., Walz. A., Wattenbach, M., Zavala, M.A. & Zscheischler, J. Effects of climate extremes on the terrestrial carbon cycle: concepts, processes and potential future impacts. Global Change Biology, 21, 2861--2880, doi: 10.1111/gcb.12916.

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. Influence of physiological phenology on the seasonal pattern of ecosystem respiration in deciduous forests. Global Change Biology, 21, 363-376, doi:10.1111/gcb.12671.

+Musavi, T., Mahecha, M.D., Migliavacca, M., Reichstein, M., van de Weg, M.J., van Bodegom, P.M., Bahn, M., Wirth, C., Reich, P.B., Schrodt, F. & Kattge, J., The imprint of plants on ecosystem functioning: a data-driven approach. Int. J. Appl. Earth Observation & Geoinformation.

Papale, D., Black, 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., Reichstein, M., Tramontana, G., Gorsel, E., Wohlfahrt, G. and Ráduly, B. Effect of spatial sampling from European flux-towers for estimating carbon and water fluxes with artificial neural networks Journal of Geophysical Research-Biogeoscienes, 120, 1941-doi:10.1002/2015JG002997.

Rammig, A. and Mahecha, M.D. Ecology: Ecosystem responses to climate extremes. Nature, 527 315–316,doi:10.1038/527315a..

Rammig, A., Wiedermann, M., Donges, J.F., Babst, F., von Bloh, W., Frank, D., Thonicke, K. and Mahecha, M.D., Coincidences of climate extremes and anomalous vegetation responses: comparing tree-ring patterns to simulated productivity. Biogeosciences, 12. 373-385,doi:10.5194/bg-12-373-2015.

+Sippel, S., Zscheischler, J., Heimann, M., Otto, F.E.L, Peters, J. and Mahecha, M.D. Quantifying changes in climate variability and extremes: pitfalls and their overcoming. Geophysical Research Letters, 42, 9990--9998, doi:10.1002/2015GL066307.

2014

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, 27, 4815-4834. doi:10.1175/JCLI-D-13-00543.1

Reichstein, M., Bahn, M., Mahecha, M.D., Kattge, J. and Baldocchi, D.D. (2014) Linking plant and ecosystem functional biogeography. PNAS, 10.1073/pnas.1216065111.

+von Buttlar, J., Zscheischler, J. and Mahecha, M.D. (2014) An extended approach for spatiotemporal gapfilling: dealing with large and systematic gaps in geoscientific datasets. Nonlinear Processes in Geophysics, 21, 203-215. doi:10.5194/npg-21-203-2014.

+Wu, X., Babst, F., Ciais, P., Frank, D., Reichstein, M., Wattenbach, M., Zang, C. and Mahecha, M.D. (2014) Climate-mediated spatiotemporal variability in the terrestrial productivity across Europe. Biogeosciences, 11, 3057-3068, doi:10.5194/bg-11-3057-2014.

+Zscheischler, J., Harmeling, S., Rammig, A., Tomelleri, E., Reichstein, M. and Mahecha, M.D. (2014) Extreme events in gross primary production: a characterization across continents. Biogeosciences, 11, 2909-2924. doi:10.5194/bg-11-2909-2014

+Zscheischler, J., Mahecha, M.D., von Buttlar, J., Harmeling, S., Jung, M., Rammig, A., Randerson, J., Schölkopf, B., Seneviratne, S.I., Tomelleri, E., Zaehle, S. and Reichstein, M., (2014) A few extreme events dominate global interannual variability in gross primary production. Environmental Research Letters, 9, 035001.

+Zscheischler, J., Michalak, A. M., Schwalm, C., Mahecha, M.D., Huntzinger, D.N., Reichstein, M., Berthier, G., Ciais, P., Cook, R.B., El-Masri, B., Huang, M., Ito, A., Jain, A., King, A., Lei, H., Lu, C., Mao, J., Peng, S., Poulter, B., Ricciuto, D., Shi, X., Tao, B., Tian, H., Viovy, N., Wang, W., Wei, Y., Yang, J., and Zeng, N. (2014) Impact of Large-Scale Climate Extremes on Biospheric Carbon Fluxes: An Intercomparison Based on MsTMIP Data. Global Biogeochemical Cycles, 28, doi:10.1002/2014GB004826.

+Zscheischler, J., Reichstein, M., von Buttlar, J., Mu, M., Randerson, J.T., and Mahecha, M.D. Carbon-cycle extremes during the 21st century in CMIP5 models: future evolution and attribution to climatic drivers. Geophysical Research Letters, 41, 8853–8861, 10.1002/2014GL062409.

2013

Forkel, M., Carvalhais, N., Verbesselt, J., Mahecha, M.D., Neigh, C. and Reichstein, M. (2013) Trend change detection in NDVI time series: effects of inter-annual variability and methodology. Remote Sensing, 5, 2113-2144. doi:10.3390/rs5052113.

Reichstein, M., Bahn, M., Ciais, P., Frank, D., Mahecha, M.D., Seneviratne, S.I., Zscheischler, J., Beer, C., Buchmann, N., Frank, D.C., Papale, D., Rammig, A., Smith, P., Thonicke, K., van der Velde, M., Vicca, S., Walz, A. and Wattenbach, M. (2013) Climate extremes and the carbon cycle. Nature, 500, 287–295. doi:10.1038/nature12350.

+Zscheischler, J, Mahecha, M.D., Harmeling, S. and Reichstein, M. (2013) Detection and attribution of large spatiotemporal extreme events in Earth observation data. Ecological Informatics, 15, 66–73. doi:10.1016/j.ecoinf.2013.03.004.

2012

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, doi:10.5194/bg-9-3857-2012..

van der Maaten, L.J.P., Schmidtlein, S. and Mahecha, M.D. (2012) Analyzing Floristic Inventories with Multiple Maps. Ecological Informatics, 9, 1–10. doi:10.1016/j.ecoinf.2012.01.005.

Wang T., Brender P., Ciais P., Piao S., Mahecha, M.D., Chevallier F., Reichstein, M., Ottlé C., Maignan F., Arain A. Bohrer G., Cescatti A., Kiely, G., Law B.E., Lutz M., Montagnani L., Moors E., Osborne B., Panferov O., Papale D. and Vaccari F. (2012) State-dependent errors in a land surface model across biomes inferred from eddy covariance observations on multiple timescales. Ecological Modeling, 246, 11–25.

+Zscheischler, J., Mahecha, M.D., Harmeling, S. (2012) Climate classifications: the value of unsupervised clustering. Procedia Computer Science, 9, 897–906. doi:10.1016/j.procs.2012.04.096.

2011

Kattge, J. et 133 others (2011) TRY - a global database of plant traits. Global Change Biology, 17, 17, 2905–2935, doi:10.1111/j.1365-2486.2011.02451.x.

Migliavacca M., Reichstein M., Richardson A.D., Colombo R., Sutton M. A., Lasslop G., Tomelleri, E. Wohlfahrt, G., Carvalhais N., Cescatti A., Mahecha M.D., Montagnani L., Papale D., Zaehle S., Arain A., Arneth A., Baldocchi D.D., Black A.T., Dore S., Gianelle D., Helfter C., Hollinger D., Kutsch W., Lafleur P.M., Nouvellon Y., Rebmann C., da Rocha H., Rodeghiero M., Roupsard O., Sebastia M.-T., Seufert G., Soussana J.-F., van der Molen M.K. (2011) Semi-empirical modeling of abiotic and biotic factors controlling ecosystem respiration across eddy covariance sites. Global Change Biology, 17, 390–409. doi:10.1111/j.1365-2486.2010.02243.x

2010

Carvalhais, N., Reichstein, M., Collatz, G.J., Mahecha, M.D., Migliavacca, M., Neigh, C.S., Tomelleri, E., Benali, A.A., Papale, D. and Seixas, J. (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

Carvalhais, N., Reichstein, M., Ciais, P., Collatz, G.J., Mahecha, M.D., Montagnani, L., Papale, D., Rambal, S. and Seixas, J. (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

Mahecha, M.D:, Fürst, L.M., Gobron, N. and Lange, H. (2010) Identifying multiple spatiotemporal patterns: a refined view on terrestrial photosynthetic activity. Pattern Recognition Letters, 31, 2309–2317. doi:10.1016/j.patrec.2010.06.021

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. (2010) Global Convergence in the Temperature Sensitivity of Respiration at Ecosystem Level. Science, 329, 838-840. doi:10.1126/science.1189587. Please find a mini summary here Nature Geoscience Research Highlight and an in depth Perspective by Peter Reich: The Carbon Dioxide Exchange, Science, 329, 774-775, followed up by a Comment by Eric Davidson, Science, 330, 1176-1177. Moreover, we see the need to give some clarifications in response to media, Klarstellungen zum Medienecho, Chiarimento in risposta ai media

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 Moors, E. (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

2009

Mahecha, M.D., Martinez, A., Lange, H., Reichstein, M. and Beck, E. (2009) Identification of characteristic plant co-occurrences in neotropical secondary montane forests. Journal of Plant Ecology, 2, 31-41. doi:10.1093/jpe/rtp001

Stoy, P.C., Richardson, A.D., Baldocchi, D.D., Katul, G.G., Stanovick, J., Mahecha, M.D., Reichstein, M., Detto, M., Law, B.E., Wohlfahrt, G., Arriga, N., Campos, J., McCaughey, J.H., Montagnani, L., Paw U, K.T., Sevanto, S. and Williams, M. (2009) Biosphere-atmosphere exchange of CO₂ in relation to climate: a cross-biome analysis across multiple time scales. Biogeosciences, 6, 2297–2312.

2008

Mahecha, M.D. and Schmidtlein, S. (2008) Revealing biogeographical patterns by nonlinear ordinations and derived anisotropic spatial filters. Global Ecology and Biogeography, 17, 284–296. doi:10.1111/j.1466-8238.2007.00368.x

Richardson, A.D., Mahecha, M.D., Falge, E., Kattge, J., Moffat, A., Papale, D., Reichstein, M., Stauch, V.J., Braswell, B.H., Churkina, G., Kruijt, B. and Hollinger, D.Y., (2008) Statistical properties of random CO₂ flux measurement uncertainty inferred from model residuals. Agricultural and Forest Meteorology, 148, 38-50. doi:10.1016/j.agrformet.2007.09.001.

2007

Mahecha, M.D., Reichstein, M., Lange, H., Carvalhais, N., Bernhofer, C., Grünwald, T., Papale, D. and Seufert, G. (2007) Characterizing ecosystem-atmosphere interactions from short to interannual time scales. Biogeosciences, 4, 743–758.

Mahecha, M.D., Martinez, A., Lischeid, G. and Beck, E. (2007) Nonlinear dimensionality reduction: Alternative ordination approaches for extracting and visualizing biodiversity patterns in tropical montane forest vegetation data. Ecological Informatics, 2, 138-149, doi:10.1016/j.ecoinf.2007.05.002.

Papers in edited volumes:

Mahecha, M.D., Lange, H. and Lischeid, G. (2011) Long-term structures in southern German runoff data. In Kropp, J.P, and Schellnhuber, H.J. (eds.) In Extremis: Disruptive Events and Trends in Climate and Hydrology, 251-266. Springer, Heidelberg-Berlin.
Martinez, A., Mahecha, M.D., Lischeid, G. and Beck, E. (2008) Succession Stages of Vegetation Regeneration: Secondary Tropical Mountain Forests. In Beck, E., Bendix, J., Kottke, I., Makeschin, F., and Mosandl, R. (eds.) Gradients in a Tropical Mountain Ecosystem of Ecuador, Series: Ecological Studies , 198, 409-416, Springer, Heidelberg-Berlin. doi:10.1007/978-3-540-73526-7	Attach:pdf-icon.gif Δ

Other publications

Mahecha, M.D., Reichstein, M., Carvalhais, N., Jung, M. (2011) FRINGES-Frascati Initiative on Global Empirical analysis of the Biosphere in Earth System. iLEAPS Newsletter, 11, 40-41.
Reichstein, M., Mahecha, M.D., Ciais, P., Seneviratne, S.I., Blyth, E., Carvalhais, N., Luo, Y. (2011) Elk-testing climate-carbon cycle models: a case for pattern-oriented system analysis. iLEAPS Newsletter, 11, 14-21.
Reichstein, M., Jung, M., Carvalhais, N., Mahecha, M.D., Beer, C., Tomelleri, E., (2011) FLUXNET-From point to globe. iLEAPS Newsletter. 11, 42-44.
Reichstein, M., Jung, M., Carvalhais, N, Mahecha, M.D., Beer, C., Tomelleri, E. (2010) FLUXNET - biosphere-atmosphere interaction from flux site to Earth System via integration of multiple data streams. FluxLetter: The Newsletter of FLUXNET, 3, 4-8.
Mahecha, M.D. and Reu, B. (2009) A spotlight on biodiversity research. Offspring magazine, Max Planck PhDnet	Attach:pdf-icon.gif Δ
Reichstein, M., Mahecha, M.D., Carvalhais, N. (2009) Workshop report: Novel data mining strategies for exploring biogeochemical cycles and biosphere-atmosphere interactions. iLEAPS Newsletter, 8, 40-41.

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Random things

Favorit vascular plant species: Magnolia mahechae.

Bernd Rendel Prize in Geoscience 2008, by the German Research Foundation (DFG).

Workshops

Exploring the Earth System Data Cube,\\ an ESA supported workshop hosted by Miguel D. Mahecha et al.

Fifth Workshop on Data Mining in Earth System Science (DMESS 2014),
at the ICCS 2014: “Big Data meets Computational Science” convened by: Forrest M. Hoffman, Jitendra Kumar, J. Walter Larson, and Miguel D. Mahecha

Fourth Workshop on Data Mining in Earth System Science (DMESS 2013),
convened by: Forrest M. Hoffman, Jitendra Kumar, J. Walter Larson, and Miguel D. Mahecha

Third Worskhop on Data Mining in Earth System Science (DMESS 2012),
convened by: Forrest M. Hoffman, Jitendra Kumar, J. Walter Larson, Richard Tran Mills, and Miguel D. Mahecha

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

go!