Oliver Sonnentag

Membre régulier
Biogéosciences atmosphériques en hautes latitudes

Professeur agrégé et Chaire de recherche du Canada en biogéosciences atmosphériques en hautes latitudes
Département de Géographie
Université de Montréal
C.P. 6128 Succ. Centre Ville
Montréal (Québec) Canada, H3C 3J7

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FORMATION

  • 2008 PhD degree, University of Toronto, Department of Geography and Program in Planning, Toronto, Ontario, Canada
  • 2003 MSc GIS degree, University of Salzburg, Department of Geoinformatics/UNIGIS, Salzburg, Austria
  • 2001 Dipl. geol. degree, Karlsruhe Institute of Technology, Department of Applied Geology, Karlsruhe, Germany
THÈMES DE RECHERCHE

Mes principaux intérêts scientifiques portent sur la compréhension des altérations dans les interactions entre la biosphère et l'atmosphère en réponse aux changements environnementaux mondiaux, utilisant des mesures par exemple : des mesures de covariance des turbulences), la télédétection (satellite et près de la surface) et les techniques de modélisation. Je suis également intéressé par la mesure locale et la cartographie (régionale, mondiale) des paramètres biophysiques pour étudier les changements dans la structure, le fonctionnement et la phénologie des écosystèmes terrestres.

DISTINCTIONS REÇUES
  • 2022 - Membre du Collège de nouveaux chercheurs et créateurs en arts et en science de la Société royale du Canada, qui comprend les meilleurs leaders en milieu de carrière du Canada.

Vous pouvez télécharger toutes mes références bibliographiques en format BibTeX, BibTeX-CSV, FRQNT ou EndNote

PUBLICATIONS
Livres


Aucun

Chapitres de livre


  1. Young-Robertson, J., Kropp, H., Sonnentag, O., Bolton, W.R. (2026) Arctic-boreal ecohydrology.


Livres, numéros spéciaux et actes de colloques publiés à titre d'éditeur


Aucun

Articles révisés par un comité de lecture


  1. Zhu, X., Wang, J.A., Sonnentag, O., Myers-Smith, I.H., Yang, D., Orndahl, K.M., Nill, L., Caron-Guay, A., Laliberte, E., Friedl, M.A. (2026) Improved mapping of Arctic fractional land cover and land cover change from multi-resolution optical remote sensing. Remote Sensing of Environment, 344
  2. Mahdianpari, M., Granger, J., Mohammadimanesh, F., Sonnentag, O., Marjani, M. (2026) Dynamic Arctic wetland mapping: A multi-mission satellite time series approach. International Journal of Applied Earth Observation and Geoinformation, 149
  3. Syahid, L.N., Luo, X., Zhao, R., Yu, L., Tan, L.M., Detto, M., Sonnentag, O. (2026) A Cost-Efficient and Robust Approach to Monitor Ecosystem Photosynthesis Using Near-Infrared Enabled Cameras. Journal of Geophysical Research: Biogeosciences, 131(5)
  4. Mahdianpari, M., Sonnentag, O., Mohammadimanesh, F., Radman, A., Marjani, M., Morse, P., Marsh, P., Lavoie, M., Risk, D., Wu, J. et al. (2026) State of the Art in Monitoring Methane Emissions from Arctic–boreal Wetlands and Lakes. Remote Sensing, 18(6)
  5. Voigt, C., Siljanen, H.M., Palacin-Lizarbe, C., Bennett, K.A., Chevrier-Dion, C., Fiencke, C., Knoblauch, C., Marquis, C., Marushchak, M.E., Saarela, T. et al. (2026) Contrasting methanotrophic communities between upland and polygonal tundra and their link to nitrogen metabolism and methane uptake in the Western Canadian Arctic. Soil Biology and Biochemistry, 213
  6. Dong, G., Jiang, F., Zhang, Y., Ju, W., Piao, S., Ciais, P., Peters, W., Luijkx, I.T., Liu, J., Chevallier, F. et al. (2026) Canadian net forest CO2 uptake enhanced by heat drought via reduced respiration. Nature Geoscience, 19(2):145 – 152
  7. Ivanova, K., Virkkala, A.-M., Brovkin, V., Stacke, T., Widhalm, B., Bartsch, A., Voigt, C., Sonnentag, O., Gockede, M. (2026) High-resolution remote sensing and machine-learning-based upscaling of methane fluxes: a case study in the Western Canadian tundra. Biogeosciences, 23(1):233 – 262
  8. Hettinga, E.K., Rezanezhad, F., Persaud, B.D., Slowinski, S., Strack, M., Liu, H., Lennartz, B., Humphreys, E., Wu, J., Skeeter, J. et al. (2026) Comparing modeled and measured carbon dioxide data at five canadian peatlands revealed highly variable non-growing season fluxes. Frontiers in Environmental Science, 14
  9. Umair, M., Melton, J.R., Roy, A., Eller, C.B., Baltzer, J., Hadiwijaya, B., Qu, B., Perron, N., Sonnentag, O. (2026) Implementing a Plant Hydraulics Parameterization in the Canadian Land Surface Scheme Including Biogeochemical Cycles (CLASSIC) v.1.4. Journal of Advances in Modeling Earth Systems, 18(1)
  10. Auclair, M., Wright, S., Olefeldt, D., Sonnentag, O., Quinton, W. (2026) A Decade of Post-Fire Succession Amplifies the Effect of Wildfire on the Surface Radiation Balance and Permafrost Thaw in Subarctic Peatlands. Permafrost and Periglacial Processes, 37(1):124 – 142
  11. Ivanova, K., Virkkala, A.-M., Vogt, J., Bieniada, A., Kuchenmeister, A., Kolle, O., Sonnentag, O., Lecavalier, B., Gockede, M. (2026) Small-Scale Spatial Variability in Carbon Fluxes Driven by Soil and Vegetation Characteristics in Wetlands of Trail Valley Creek, Canada. Journal of Geophysical Research: Biogeosciences, 131(6)
  12. Webb, H., Fuchs, M., Abbott, B.W., Douglas, T.A., Elder, C.D., Ernakovich, J.G., Euskirchen, E.S., Gockede, M., Grosse, G., Hugelius, G. et al. (2025) A Review of Abrupt Permafrost Thaw: Definitions, Usage, and a Proposed Conceptual Framework. Current Climate Change Reports, 11(1)
  13. Reed, D.E., Chu, H., Peter, B.G., Chen, J., Abraha, M., Amiro, B., Anderson, R.G., Arain, M.A., Arruda, P., Barron-Gafford, G.A. et al. (2025) Network of networks: Time series clustering of AmeriFlux sites. Agricultural and Forest Meteorology, 372
  14. Yazbeck, T., Bohrer, G., Sonnentag, O., Qu, B., Detto, M., Hould-Gosselin, G., Graveline, V., Alcock, H., Lecavalier, B., Marsh, P. et al. (2025) Shrub Expansion Can Counteract Carbon Losses From Warming Tundra. Journal of Geophysical Research: Biogeosciences, 130(8)
  15. He, H., Moore, T., Lafleur, P., Sonnentag, O., Humphreys, E., Wu, M., Roulet, N. (2025) Spring phenology in photosynthesis control and modeling for a temperate bog. Frontiers in Environmental Science, 13
  16. Mousavi, S.M., Dinan, N.M., Khoshbakht, K., Ansarifard, S., Sonnentag, O., Naghibi, A. (2025) Determining the influence of meteorological, environmental, and anthropogenic activity variables on the atmospheric CO2 concentration in the arid and semi-arid regions: A case study in the Middle East. Atmospheric Research, 319
  17. Virkkala, A.-M., Rogers, B.M., Watts, J.D., Arndt, K.A., Potter, S., Wargowsky, I., Schuur, E.A.G., See, C.R., Mauritz, M., Boike, J. et al. (2025) Wildfires offset the increasing but spatially heterogeneous Arctic–boreal CO2 uptake. Nature Climate Change
  18. Falvo, G., Schuur, E.A., Euskirchen, E.S., Natali, S.M., Sonnentag, O., Alcock, H., Arndt, K., Edgar, C., Hould-Gosselin, G., Hung, J. et al. (2025) Record 2024 winter carbon emissions coincide with record warmth across boreal forest, tundra, and wetland ecosystems. Environmental Research Letters, 20(11)
  19. Schulze, C., Sonnentag, O., Emmerton, C.A., Harris, L., Alcock, H., Marouelli, K., Hould Gosselin, G., Knox, S.H., Howard, R., Skeeter, J. et al. (2025) Large Carbon Losses From Burned Permafrost Peatlands During Post-Fire Succession. Geophysical Research Letters, 52(19)
  20. Hashemi, J., Rasanen, A., Virtanen, T., Juutinen, S., Grosse, G., Aurela, M., Bartsch, A., Chasmer, L., Davidson, S.J., Korkiakoski, M. et al. (2025) Coarse land cover datasets bias Arctic-Boreal wetland methane budgets. Communications Earth and Environment, 6(1)
  21. Shirley, I., Mekonnen, Z., Grant, R., Detto, M., Gosselin, G.H., Talbot, J., Sonnentag, O., Dafflon, B., Riley, W.J. (2025) Hydrology controls thermokarst and alters carbon cycling and methane emissions in peatlands near the southern limit of permafrost. Environmental Research Letters, 20(11)
  22. Gauthier, C.B., Melton, J.R., Meyer, G., Raj Deepak, S., Sonnentag, O. (2025) Parameter Optimization for Global Soil Carbon Simulations: Not a Simple Problem. Journal of Advances in Modeling Earth Systems, 17(8)
  23. Thompson, L.M., Shewan, R., Mangal, V., Harris, L.I., Cheng, C.H., Braga, L.P.P., Kolmakova, O., Tanentzap, A.J., Knorr, K.H., Kuhn, M.A. et al. (2025) Production of Methylmercury in Peatlands Following Permafrost Thaw Increases along a Trophic Gradient. Environmental Science and Technology, 59(36):19457 – 19467
  24. Virkkala, A.-M., Rogers, B.M., Watts, J.D., Arndt, K.A., Potter, S., Wargowsky, I., Schuur, E.A.G., See, C.R., Mauritz, M., Boike, J. et al. (2025) Correction to: Wildfires offset the increasing but spatially heterogeneous Arctic–boreal CO2 uptake (Nature Climate Change, (2025), 15, 2, (188-195), 10.1038/s41558-024-02234-5). Nature Climate Change, 15(3):335
  25. Ying, Q., Poulter, B., Watts, J.D., Arndt, K.A., Virkkala, A.-M., Bruhwiler, L., Oh, Y., Rogers, B.M., Natali, S.M., Sullivan, H. et al. (2025) WetCH4: a machine-learning-based upscaling of methane fluxes of northern wetlands during 2016-2022. Earth System Science Data, 17(6):2507 – 2534
  26. Madelon, R., Kimball, J.S., Endsley, K.A., De Lannoy, G.J.M., Sonnentag, O., Alcock, H., Detto, M., Virkkala, A.M., Rogers, B.M., Watts, J.D. et al. (2025) Assessing the SMAP Level-4 Carbon Product Over the Arctic and Subarctic Zones. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 18:9850 – 9864
  27. Gorrab, A., Sonnentag, O., Mialon, A., Hanes, C.C., Ortet, J., Berg, A.A., Umair, M., Roy, A. (2025) Assessment of L-Band Passive Microwave Soil Moisture Retrievals Against In Situ Measurements in the North American Boreal Biome. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 18:12713 – 12727
  28. Gorrab, A., Sonnentag, O., Mialon, A., Hadiwijaya, B., Roy, C., Berg, A., Ortet, J., Umair, M., Roy, A. (2025) Challenges and Limitations in Comparing Satellite Microwave Vegetation Optical Depth (VOD) Against in-Situ Tree Hydraulics in the Canadian Boreal Forest; [Défis et limites de la comparaison entre l’épaisseur optique de la végétation (VOD) micro-ondes et les mesures de l’hydraulique des arbres en forêt boréale Canadienne]. Canadian Journal of Remote Sensing, 51(1)
  29. Mavrovic, A., Sonnentag, O., Voigt, C., Lemmetyinen, J., Aurela, M., Roy, A. (2025) Winter Methane Fluxes Over Boreal and Arctic Environments. Geophysical Research Letters, 52(21)
  30. Lhosmot, A., Gosselin, G.H., Helbig, M., Fouche, J., Ryu, Y., Detto, M., Connon, R., Quinton, W., Moore, T., Sonnentag, O. (2025) Multi-scale water balance analysis of a thawing boreal peatland complex near the southern permafrost limit in northwestern Canada. Hydrology and Earth System Sciences, 29(19):4871 – 4892
  31. Perron, N., Baltzer, J.L., Detto, M., Nehemy, M., Spence, C., Hould-Gosselin, G., Alcock, H., Hadiwijaya, B., Laroque, C.P., Sonnentag, O. (2024) Radiation, Air Temperature, and Soil Water Availability Drive Tree Water Deficit Across Temporal Scales in Canada's Western Boreal Forest. Geophysical Research Letters, 51(8)
  32. Standen, K.M., Sniderhan, A.E., Sonnentag, O., Voigt, C., Baltzer, J.L. (2024) Response of Boreal Plant Communities and Forest Floor Carbon Fluxes to Experimental Nutrient Additions. Ecosystems, 27(3):462 – 478
  33. Zhu, Q., Chen, J., Charles P.-A., B., Sonnentag, O., Montagnani, L., O’Halloran, T.L., Scott, R.L., Forsythe, J., Song, B., Zou, H. et al. (2024) Albedo-Induced Global Warming Potential Following Disturbances in Global Temperate and Boreal Forests. Journal of Geophysical Research: Biogeosciences, 129(3)
  34. Treat, C.C., Virkkala, A.-M., Burke, E., Bruhwiler, L., Chatterjee, A., Fisher, J.B., Hashemi, J., Parmentier, F.-J.W., Rogers, B.M., Westermann, S. et al. (2024) Permafrost Carbon: Progress on Understanding Stocks and Fluxes Across Northern Terrestrial Ecosystems. Journal of Geophysical Research: Biogeosciences, 129(3)
  35. Graveline, V., Helbig, M., Gosselin, G.H., Alcock, H., Detto, M., Walker, B., Marsh, P., Sonnentag, O. (2024) Surface-atmosphere energy exchanges and their effects on surface climate and atmospheric boundary layer characteristics in the forest-tundra ecotone in northwestern Canada. Agricultural and Forest Meteorology, 350
  36. Dutch, V.R., Rutter, N., Wake, L., Sonnentag, O., Hould Gosselin, G., Sandells, M., Derksen, C., Walker, B., Meyer, G., Essery, R. et al. (2024) Simulating net ecosystem exchange under seasonal snow cover at an Arctic tundra site. Biogeosciences, 21(3):825 – 841
  37. See, C.R., Virkkala, A.-M., Natali, S.M., Rogers, B.M., Mauritz, M., Biasi, C., Bokhorst, S., Boike, J., Bret-Harte, M.S., Celis, G. et al. (2024) Decadal increases in carbon uptake offset by respiratory losses across northern permafrost ecosystems. Nature Climate Change, 14(8):853 – 862
  38. Spence, C., Coles, A., Gibson, J., Nicholls, E., Perron, N., Sniderhan, A., Sonnentag, O., Baltzer, J. (2024) The Influence of Tree Infilling on Energy Partitioning, Vegetation Water Use, and Soil Water State in Sparse Conifer Stands of the Taiga Shield Ecoregion. Water Resources Research, 60(8)
  39. Pulliainen, J., Aurela, M., Aalto, T., Bottcher, K., Cohen, J., Derksen, C., Heimann, M., Helbig, M., Kolari, P., Kontu, A. et al. (2024) Increase in gross primary production of boreal forests balanced out by increase in ecosystem respiration. Remote Sensing of Environment, 313
  40. Kuhn, M.A., Varner, R.K., McCalley, C.K., Perryman, C.R., Aurela, M., Burke, S.A., Chanton, J.P., Crill, P.M., DelGreco, J., Deng, J. et al. (2024) Controls on Stable Methane Isotope Values in Northern Peatlands and Potential Shifts in Values Under Permafrost Thaw Scenarios. Journal of Geophysical Research: Biogeosciences, 129(7)
  41. Maiti, A., Hasan, M.K., Sannigrahi, S., Bar, S., Chakraborti, S., Mahto, S.S., Chatterjee, S., Pramanik, S., Pilla, F., Auerbach, J. et al. (2024) Optimal rainfall threshold for monsoon rice production in India varies across space and time. Communications Earth & Environment, 5(1)
  42. Zhang, Z., Bansal, S., Chang, K.-Y., Fluet-Chouinard, E., Delwiche, K., Goeckede, M., Gustafson, A., Knox, S., Leppanen, A., Liu, L. et al. (2023) Characterizing Performance of Freshwater Wetland Methane Models Across Time Scales at FLUXNET-CH4 Sites Using Wavelet Analyses. Journal of Geophysical Research: Biogeosciences, 128(11)
  43. Zona, D., Lafleur, P.M., Hufkens, K., Gioli, B., Bailey, B., Burba, G., Euskirchen, E.S., Watts, J.D., Arndt, K.A., Farina, M. et al. (2023) Pan-Arctic soil moisture control on tundra carbon sequestration and plant productivity. Global Change Biology, 29:1267-1281
  44. Qu, B., Roy, A., Melton, J.R., Black, T.A., Amiro, B., Euskirchen, E.S., Ueyama, M., Kobayashi, H., Schulze, C., Gosselin, G.H. et al. (2023) A boreal forest model benchmarking dataset for North America: a case study with the Canadian Land Surface Scheme Including Biogeochemical Cycles (CLASSIC). Environmental Research Letters, 18(8)
  45. Mavrovic, A., Sonnentag, O., Lemmetyinen, J., Baltzer, J.L., Kinnard, C., Roy, A. (2023) Reviews and syntheses: Recent advances in microwave remote sensing in support of terrestrial carbon cycle science in Arctic-boreal regions. Biogeosciences, 20(14):2941 – 2970
  46. Schulze, C., Sonnentag, O., Voigt, C., Thompson, L., van Delden, L., Heffernan, L., Hernandez-Ramirez, G., Kuhn, M., Lin, S., Olefeldt, D. (2023) Nitrous Oxide Fluxes in Permafrost Peatlands Remain Negligible After Wildfire and Thermokarst Disturbance. Journal of Geophysical Research: Biogeosciences, 128(4)
  47. McNicol, G., Fluet-Chouinard, E., Ouyang, Z., Knox, S., Zhang, Z., Aalto, T., Bansal, S., Chang, K.-Y., Chen, M., Delwiche, K. et al. (2023) Upscaling Wetland Methane Emissions From the FLUXNET-CH4 Eddy Covariance Network (UpCH4 v1.0): Model Development, Network Assessment, and Budget Comparison. AGU Advances, 4(5)
  48. Watts, J.D., Farina, M., Kimball, J.S., Schiferl, L.D., Liu, Z., Arndt, K.A., Zona, D., Ballantyne, A., Euskirchen, E.S., Parmentier, F.-J.W. et al. (2023) Carbon uptake in Eurasian boreal forests dominates the high-latitude net ecosystem carbon budget. Global Change Biology, 29(7):1870 – 1889
  49. Ueyama, M., Knox, S.H., Delwiche, K.B., Bansal, S., Riley, W.J., Baldocchi, D., Hirano, T., McNicol, G., Schafer, K., Windham-Myers, L. et al. (2023) Modeled production, oxidation, and transport processes of wetland methane emissions in temperate, boreal, and Arctic regions. Global Change Biology, 29(8):2313 – 2334
  50. Pisek, J., Sonnentag, O., Christensen, T.R. (2023) Arctic science: resuming action without Russia. Nature, 615(7952):394
  51. Stimmler, P., Goeckede, M., Elberling, B., Natali, S., Kuhry, P., Perron, N., Lacroix, F., Hugelius, G., Sonnentag, O., Strauss, J. et al. (2023) Pan-Arctic soil element bioavailability estimations. Earth System Science Data, 15(3):1059 – 1075
  52. Perron, N., Baltzer, J.L., Sonnentag, O. (2023) Spatial and temporal variation in forest transpiration across a forested boreal peatland complex. Hydrological Processes, 37(2)
  53. Thompson, L., Low, M., Shewan, R., Schulze, C., Simba, M., Sonnentag, O., Tank, S., Olefeldt, D. (2023) Concentrations and Yields of Mercury, Methylmercury, and Dissolved Organic Carbon From Contrasting Catchments in the Discontinuous Permafrost Region, Western Canada. Water Resources Research, 59(11)
  54. Voigt, C., Virkkala, A.-M., Hould Gosselin, G., Bennett, K.A., Black, T.A., Detto, M., Chevrier-Dion, C., Guggenberger, G., Hashmi, W., Kohl, L. et al. (2023) Arctic soil methane sink increases with drier conditions and higher ecosystem respiration. Nature Climate Change, 13(10):1095 – 1104
  55. Germain Chartrand, P., Sonnentag, O., Sanderson, N.K., Garneau, M. (2023) Recent peat and carbon accumulation on changing permafrost landforms along the Mackenzie River valley, Northwest Territories, Canada. Environmental Research Letters, 18(9)
  56. Klotz, L.A., Sonnentag, O., Wang, Z., Wang, J.A., Kang, M. (2023) Oil and natural gas wells across the NASA ABoVE domain: fugitive methane emissions and broader environmental impacts. Environmental Research Letters, 18(3)
  57. Virkkala, A.-M., Natali, S.M., Rogers, B.M., Watts, J.D., Savage, K., Connon, S.J., Mauritz, M., Schuur, E.A.G., Peter, D., Minions, C. et al. (2022) The ABCflux database: Arctic-boreal CO2flux observations and ancillary information aggregated to monthly time steps across terrestrial ecosystems. Earth System Science Data, 14(1):179-208
  58. Oehri, J., Schaepman-Strub, G., Kim, J.-S., Grysko, R., Kropp, H., Grunberg, I., Zemlianskii, V., Sonnentag, O., Euskirchen, E.S., Reji Chacko, M. et al. (2022) Vegetation type is an important predictor of the arctic summer land surface energy budget. Nature Communications, 13(1):6379
  59. Zolkos, S., Tank, S., Kokelj, S., Striegl, R., Shakil, S., Voigt, C., Sonnentag, O., Quinton, W., Schuur, E., Zona, D. et al. (2022) Permafrost landscape history shapes fluvial chemistry, ecosystem carbon balance, and potential trajectories of future change. Global Biogeochemical Cycles, 36
  60. Martin, M.R., Kumar, P., Sonnentag, O., Marsh, P. (2022) Thermodynamic basis for the demarcation of Arctic and alpine treelines. Scientific Reports, 12:12565
  61. El-Amine, M., Roy, A., Koebsch, F., Baltzer, J.L., Barr, A., Black, A., Ikawa, H., Iwata, H., Kobayashi, H., Ueyama, M. et al. (2022) What explains the year-to-year variation in growing season timing of boreal black spruce forests? Agricultural and Forest Meteorology, 324:109113
  62. Yuan, K., Zhu, Q., Li, F., Riley, W.J., Torn, M., Chu, H., McNicol, G., Chen, M., Knox, S., Delwiche, K. et al. (2022) Causality guided machine learning model on wetland CH4 emissions across global wetlands. Agricultural and Forest Meteorology, 324:109115
  63. Dimitrov, D.D., Lafleur, P., Sonnentag, O., Talbot, J., Quinton, W.L. (2022) Hydrology of peat estimated from near-surface water contents. Hydrological Sciences Journal, 67:1702-1721
  64. Curasi, S.R., Fetcher, N., Hewitt, R.E., Lafleur, P.M., Loranty, M.M., Mack, M.C., May, J.L., Myers-Smith, I.H., Natali, S.M., Oberbauer, S.F. et al. (2022) Range shifts in a foundation sedge potentially induce large Arctic ecosystem carbon losses and gains. Environmental Research Letters, 17:045024
  65. Dutch, V.R., Rutter, N., Wake, L., Sandells, M., Derksen, C., Walker, B., Hould Gosselin, G., Sonnentag, O., Essery, R., Kelly, R. et al. (2022) Impact of measured and simulated tundra snowpack properties on heat transfer. The Cryosphere, 16:4201-4222
  66. Cheng, R., Magney, T.S., Orcutt, E.L., Pierrat, Z., Kohler, P., Bowling, D.R., Bret-Harte, M.S., Euskirchen, E.S., Jung, M., Kobayashi, H. et al. (2022) Evaluating photosynthetic activity across Arctic-Boreal land cover types using solar-induced fluorescence. Environmental Research Letters, 17:115009
  67. Nehemy, M.F., Maillet, J., Perron, N., Pappas, C., Sonnentag, O., Baltzer, J.L., Laroque, C.P., McDonnell, J.J. (2022) Snowmelt Water Use at Transpiration Onset: Phenology, Isotope Tracing, and Tree Water Transit Time. Water Resources Research, 58:e2022WR032344
  68. Mousavi, S.M., Dinan, N.M., Ansarifard, S., Sonnentag, O. (2022) Analyzing spatio-temporal patterns in atmospheric carbon dioxide concentration across Iran from 2003 to 2020. Atmospheric Environment: X, 14:100163
  69. Stimmler, P., Gockede, M., Natali, S.M., Sonnentag, O., Gilfedder, B.S., Perron, N., Schaller, J. (2022) The importance of calcium and amorphous silica for arctic soil CO2 production. Frontiers in Environmental Science, 10
  70. Foster, A.C., Wang, J.A., Frost, G.V., Davidson, S.J., Hoy, E., Turner, K.W., Sonnentag, O., Epstein, H., Berner, L.T., Armstrong, A.H. et al. (2022) Disturbances in North American boreal forest and Arctic tundra: impacts, interactions, and responses. Environmental Research Letters, 17:113001
  71. Zona, D., Lafleur, P.M., Hufkens, K., Bailey, B., Gioli, B., Burba, G., Goodrich, J.P., Liljedahl, A.K., Euskirchen, E.S., Watts, J.D. et al. (2022) Earlier snowmelt may lead to late season declines in plant productivity and carbon sequestration in Arctic tundra ecosystems. Scientific Reports, 12(1)
  72. Helbig, M., Zivković, T., Alekseychik, P., Aurela, M., El-Madany, T., Euskirchen, E., Flanagan, L., Griffis, T., Hanson, P., Hattakka, J. et al. (2022) Warming response of peatland CO2 sink is sensitive to seasonality in warming trends. Nature Climate Change, 12(8):743 – 749
  73. Chu, H., Luo, X., Ouyang, Z., Chan, W.S., Dengel, S., Biraud, S.C., Torn, M.S., Metzger, S., Kumar, J., Arain, M.A. et al. (2021) Representativeness of Eddy-Covariance flux footprints for areas surrounding AmeriFlux sites. Agricultural and Forest Meteorology, 301-302
  74. Loisel, J., Gallego-Sala, A.V., Amesbury, M.J., Magnan, G., Anshari, G., Beilman, D.W., Benavides, J.C., Blewett, J., Camill, P., Charman, D.J. et al. (2021) Author Correction: Expert assessment of future vulnerability of the global peatland carbon sink (Nature Climate Change, (2021), 11, 1, (70-77), 10.1038/s41558-020-00944-0). Nature Climate Change, 11(4):362
  75. Holtzman, N.M., Anderegg, L.D.L., Kraatz, S., Mavrovic, A., Sonnentag, O., Pappas, C., Cosh, M.H., Langlois, A., Lakhankar, T., Tesser, D. et al. (2021) L-band vegetation optical depth as an indicator of plant water potential in a temperate deciduous forest stand. Biogeosciences, 18(2):739-753
  76. Kropp, H., Loranty, M.M., Natali, S.M., Kholodov, A.L., Rocha, A.V., Myers-Smith, I., Abbot, B.W., Abermann, J., Blanc-Betes, E., Blok, D. et al. (2021) Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems. Environmental Research Letters, 16(1)
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  161. Sonnentag, O., van der Kamp, G., Barr, A.G., Chen, J.M. (2010) On the relationship between water table depth and water vapor and carbon dioxide fluxes in a minerotrophic fen. Global Change Biology, 16(6):1762-1776
  162. Pisek, J., Chen, J.M., Lacaze, R., Sonnentag, O., Alikas, K. (2010) Expanding global mapping of the foliage clumping index with multi-angular POLDER three measurements: Evaluation and topographic compensation. ISPRS Journal of Photogrammetry and Remote Sensing, 65(4):341-346
  163. Sulman, B.N., Desai, A.R., Saliendra, N.Z., Lafleur, P.M., Flanagan, L.B., Sonnentag, O., MacKay, D.S., Barr, A.G., Van Der Kamp, G. (2010) CO2 fluxes at northern fens and bogs have opposite responses to inter-annual fluctuations in water table. Geophysical Research Letters, 37(19)
  164. Ryu, Y., Baldocchi, D.D., Verfaillie, J., Ma, S., Falk, M., Ruiz-Mercado, I., Hehn, T., Sonnentag, O. (2010) Testing the performance of a novel spectral reflectance sensor, built with light emitting diodes (LEDs), to monitor ecosystem metabolism, structure and function. Agricultural and Forest Meteorology, 150(12):1597-1606
  165. Govind, A., Chen, J.M., Margolis, H.A., Ju, W., Sonnentag, O., Giasson, M.-A. (2009) A spatially explicit hydro-ecological modeling framework (BEPS-TerrainLab V2.0): Model description and test in a boreal ecosystem in Eastern North America. Journal of Hydrology, 367(3-4):200-216
  166. Govind, A., Chen, J.M., Margolis, H., Ju, W., Sonnentag, O., Giasson, M.-A. (2009) A spatially explicit hydro-ecological modeling framework (BEPS-TerrainLab V2.0): Model description and test in a boreal ecosystem in Eastern North America. Journal of Hydrology, 367(3-4):200-216
  167. Sonnentag, O., Chen, J.M., Roulet, N.T., Ju, W., Govind, A. (2008) Spatially explicit simulation of peatland hydrology and carbon dioxide exchage: Influence of mesoscale topography. Journal of Geophysical Research: Biogeosciences, 113(2)
  168. Sonnentag, O., Chen, J.M., Roberts, D.A., Talbot, J., Halligan, K.Q., Govind, A. (2008) Corrigendum to "Mapping tree and shrub leaf area indices in an ombrotrophic peatland through multiple endmember spectral unmixing" [Remote Sensing of Environment, 109: 342-360] (DOI:10.1016/j.rse.2007.01.010). Remote Sensing of Environment, 112(7):3295
  169. Sonnentag, O., Talbot, J., Chen, J.M., Roulet, N.T. (2007) Using direct and indirect measurements of leaf area index to characterize the shrub canopy in an ombrotrophic peatland. Agricultural and Forest Meteorology, 144(3-4):200-212
  170. Sonnentag, O., Chen, J.M., Roberts, D.A., Talbot, J., Halligan, K.Q., Govind, A. (2007) Mapping tree and shrub leaf area indices in an ombrotrophic peatland through multiple endmember spectral unmixing. Remote Sensing of Environment, 109(3):342-360
  171. Chen, J.M., Govind, A., Sonnentag, O., Zhang, Y., Barr, A., Amiro, B. (2006) Leaf area index measurements at Fluxnet-Canada forest sites. Agricultural and Forest Meteorology, 140(1-4):257-268


Articles publiés dans des actes de colloque (proceedings)


  1. Fortier, M., Richter, M.L., Sonnentag, O., Pal, C. (2025) CARBONSENSE: A MULTIMODAL DATASET AND BASELINE FOR CARBON FLUX MODELLING. In 13th International Conference on Learning Representations, ICLR 2025. 54162 – 54194
  2. Roy, A., Toose, P., Mavrovic, A., Pappas, C., Berg, A., Rowlandson, T., Derksen, C., Royer, A., El-Amine, M., Helgason, W. et al. (2018) Use of L-band ground-based radiometers for freeze/thaw retrieval in a boreal forest site. In International Geoscience and Remote Sensing Symposium (IGARSS). Pages 9042-9044
  3. Pisek, J., Buddenbaum, H., Camacho, F., Hill, J., Jensen, J.L.R., Lange, H., Liu, Z., Piayda, A., Qu, Y., Roupsard, O. et al. (2018) Application of photon recollision probability theory for compatibility check between foliage clumping and leaf area index products obtained from earth observation data. In International Geoscience and Remote Sensing Symposium (IGARSS). Pages 5918-5920
  4. Roy, A., Royer, A., Derksen, C., Langlois, A., Sonnentag, O. (2016) Monitoring boreal and arctic freeze/thaw with the first year of SMAP brightness temperatures. In 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment, MicroRad 2016 - Proceedings. Pages 82-84
  5. Roy, A., Toose, P., Derksen, C., Royer, A., Mavrovic, A., Berg, A.A., Arnold, L., Willamson, M., Rowlandson, T., Lemmetyinen, J. et al. (2016) Analysis of L-Band brightness temperatures response to freeze/thaw in two prairie environments from surface-based radiometer measurements. In International Geoscience and Remote Sensing Symposium (IGARSS). Pages 1667-1670


Rapports scientifiques, manuels et autres


  1. Op de Beeck, M., Gielen, B., Merbold, L., Sonnentag, O. (2016) Ancillary vegetation measurements in grasslands. Technical report, Integrated Carbon Observation System Ecosystem Thematic Centre, Helsinki, Finland.


Thèses, mémoires et essais


Aucun

Thèses, mémoires et essais supervisés


  1. Lefebvre, R. (2025) Évaluation de la contribution des bryophytes aux cycles du carbone et de l'azote dans la forêt boréale canadienne par la modification du modèle CLASSIC. Mémoire de maîtrise, Université de Montréal
  2. Lecavalier, B. (2025) Productivité écosystémique durant la période de croissance sur l'écotone forêt-toundra : variabilité et contrôles environnementaux. Mémoire de maîtrise, Université de Montréal
  3. Qu, B. (2024) Past, present, and future boreal forest productivity across North America : from eddy covariance observations to long-term model simulations over 1901?2100. Thèse de doctorat, Université de Montréal
  4. Gauthier, C. (2023) Optimisation des paramètres de carbone de sol dans le modèle CLASSIC à l'aide d'optimisation bayésienne et d'observations. Mémoire de maîtrise, Université de Montréal
  5. Graveline, V. (2023) Surface-atmosphere energy exchanges and their effects on surface climate and boundary layer dynamics in the forest-tundra ecotone in northwestern Canada. Mémoire de maîtrise, Université de Montréal
  6. Perron, N.S. (2023) Variability in tree-water relations from tree-line to tree-line in Canada's western boreal forest. Thèse de doctorat, Université de Montréal
  7. El-Amine, M. (2020) Contrôles environnementaux de la variabilité interannuelle de la reprise et de la fin de la photosynthèse au sein de la forêt boréale nord-américaine. Mémoire de maîtrise, Université de Montréal
  8. Helbig, M. (2017) Thawing permafrost and land-atmosphere interactions of boreal forest-wetland landscapes in northwestern Canada. Thèse de doctorat, Université de Montréal
  9. Payette, F. (2015) Échanges d’énergie et d’eau des écosystèmes nordiques dans un contexte de changement climatique. Mémoire de maîtrise, Université de Montréal
  10. Higgins, K.L. (2015) Effet de la végétation sur la variabilité de la profondeur de dégel à petite échelle dans un paysage de tourbières en forêt boréale dans les Territoires du Nord-Ouest. Mémoire de maîtrise, Université de Montréal


Articles non révisés par un comité de lecture


  1. Lecavalier, B., Graveline, V., Cornette, L., King, J., Helbig, M., Sonnentag, O. (2024) Entre sol et ciel : Perturbations écosystémiques et processus atmosphériques dans l’ouest de l’arctique canadien. Le Climatoscope, 6
  2. Gauthier, C., Sonnentag, O., Melton, J. (2024) Fate of carbon in Canadian permafrost-affected soils. Frozen Ground, 17
  3. Baltzer, J., Sonnentag, O. (2021) COP26 deforestation deal key to slowing climate change, but Canada must tackle issues of carbon accounting and industry. The Conversation, 3


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•École d’été en modélisation de la biodiversité 2026 
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Cours donné par Dominique Gravel, au Centre de villégiature Jouveance (Orford, QC)
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