Thomas Friborg

Thomas Friborg

Professor

ORCID: 0000-0001-5633-6097

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  1. Published

    Models of CO2 and water vapour fluxes from a sparse millet crop in the Sahel

    Boegh, E., Soegaard, H., Friborg, Thomas & Levy, P. E., 1999, In: Agricultural and Forest Meteorology. 93, 1, p. 7-26

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Methane emissions from western Siberian wetlands: heterogeneity and sensitivity to climate change

    Bohn, T., Lettenmaier, D. P., Sathulur, K., Bowling, L. C., Podest, E., McDonald, K. C. & Friborg, Thomas, 2007, In: Environmental Research Letters. 2

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Thawing sub-arctic permafrost - effects on vegetation and methane emissions

    Byrne, K., Chojnicki, B., Christensen, T. R., Drösler, M., Freibauer, A., Friborg, Thomas, Frolking, S., Lindroth, A., Mailhammer, J., Malmer, N., Selin, P., Turunen, J., Valentini, R. & Zetterberg, L., 2004, EU peatlands : Current carbon stocks and trace gas fluxes. no. 4 ed. European Commission, p. ?

    Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

  4. Published

    Models of CO2 and water vapor fluxes from a sparse millet crop in the Sahel

    Bøgh, E., Søgaard, H., Friborg, Thomas & Levy, P., 1999, In: Agricultural and Forest Meteorology. 93, p. 7-26

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Carbon stocks and fluxes in the high latitudes: Using site-level data to evaluate Earth system models

    Chadburn, S., Krinner, G., Porada, P., Bartsch, A., Beer, C., Marchesini, L. B., Boike, J., Elberling, B., Friborg, T., Hugelius, G., Johansson, M., Kuhry, P., Kutzbach, L., Langer, M., Lund, M., Parmentier, F-J., Peng, S., Huissteden, K. V., Wang, T., Westermann, S. & 2 others, Zhu, D. & Burke, E., 2017, Copernicus/EGU, 41 p. (Biogeosciences Discussions; No. 197, Vol. 2017).

    Research output: Working paper › Preprint › Research

  6. Published

    Supplementary material to "Carbon stocks and fluxes in the high latitudes: Using site-level data to evaluate Earth system models"

    Chadburn, S., Krinner, G., Porada, P., Bartsch, A., Beer, C., Marchesini, L. B., Boike, J., Elberling, B., Friborg, T., Hugelius, G., Johansson, M., Kuhry, P., Kutzbach, L., Langer, M., Lund, M., Parmentier, F-J., Peng, S., Huissteden, K. V., Wang, T., Westermann, S. & 2 others, Zhu, D. & Burke, E., 31 May 2017, 4 p. Copernicus/EGU.

    Research output: Other contribution › Research

  7. Published

    Carbon stocks and fluxes in the high latitudes: using site-level data to evaluate Earth system models

    Chadburn, S. E., Krinner, G., Porada, P., Bartsch, A., Beer, C., Marchesini, L. B., Boike, J., Ekici, A., Elberling, B., Friborg, T., Hugelius, G., Johansson, M., Kuhry, P., Kutzbach, L., Langer, M., Lund, M., Parmentier, F-J. W., Peng, S., Van Huissteden, K., Wang, T. & 3 others, Westermann, S., Zhu, D. & Burke, E. J., 2017, In: Biogeosciences. 14, 22, p. 5143-5169 27 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Modeled Microbial Dynamics Explain the Apparent Temperature Sensitivity of Wetland Methane Emissions

    Chadburn, S. E., Aalto, T., Aurela, M., Baldocchi, D., Biasi, C., Boike, J., Burke, E. J., Comyn-Platt, E., Dolman, A. J., Duran-Rojas, C., Fan, Y., Friborg, T., Gao, Y., Gedney, N., Göckede, M., Hayman, G. D., Holl, D., Hugelius, G., Kutzbach, L., Lee, H. & 5 others, Lohila, A., Parmentier, F. J. W., Sachs, T., Shurpali, N. J. & Westermann, S., Nov 2020, In: Global Biogeochemical Cycles. 34, 11, e2020GB006678.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Substantial hysteresis in emergent temperature sensitivity of global wetland CH4 emissions

    Chang, K., Riley, W. J., Knox, S. H., Jackson, R. B., Mcnicol, G., Poulter, B., Aurela, M., Baldocchi, D., Bansal, S., Bohrer, G., Campbell, D. I., Cescatti, A., Chu, H., Delwiche, K. B., Desai, A. R., Euskirchen, E., Friborg, T., Goeckede, M., Helbig, M., Hemes, K. S. & 33 others, Hirano, T., Iwata, H., Kang, M., Keenan, T., Krauss, K. W., Lohila, A., Mammarella, I., Mitra, B., Miyata, A., Nilsson, M. B., Noormets, A., Oechel, W. C., Papale, D., Peichl, M., Reba, M. L., Rinne, J., Runkle, B. R. K., Ryu, Y., Sachs, T., Schäfer, K. V. R., Schmid, H. P., Shurpali, N., Sonnentag, O., Tang, A. C. I., Torn, M. S., Trotta, C., Tuittila, E., Ueyama, M., Vargas, R., Vesala, T., Windham-myers, L., Zhang, Z. & Zona, D., 2021, In: Nature Communications. 12, 1, 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    A catchment scale process study of carbon and greenhouse gas exchange in a subarctic landscape

    Christensen, T. R., Johansson, P. T., Olsrud, M., Ström, L., Lindroth, A., Mastepanov, M., Malmer, N., Friborg, Thomas, Crill, P. M. & Callaghan, T. V., 2008.

    Research output: Contribution to conference › Poster › Research

  11. Published

    Biogenic controls on trace gas fluxes in northern wetlands

    Christensen, T. R., Lloyd, D., Svensson, B., Matikainen, P. J., Harding, R., Oskasson, H., Friborg, Thomas, Søgaard, H. & Panikov, N., 2002, (Global Change IGBP News Letter, Vol. 2002).

    Research output: Book/Report › Book › Research › peer-review

  12. Published

    Trace gas exchange in a high-arctic valley, 1, Variations in CO2 and CH4 flux between tundra vegetation types

    Christensen, T. R., Friborg, Thomas, Sommerkorn, M., Kaplan, J., Illeris, L., Søgaard, H., Nordstrøm, C. & Jonasson, S. E., 2000, In: Global Biogeochemical Cycles. 14, 3, p. 701-713

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Thawing sub-arctic permafrost: Effects on vegetation and methane emissions

    Christensen, T. R., Johansson, P. T., Malmer, N., Åkerman, J., Friborg, Thomas, Crill, P., Mastepanov, M. & Svensson, B., 2004, In: Geophysical Research Letters. 31, p. L04501

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    Changes in Climate, permafrost and vegetation-effects on subarctic methane emission

    Christensen, T. R., Johansson, T., Malmer, N., Åkerman, J., Friborg, Thomas, Crill, P. & Svensson, B., 2004, In: Geophysical Research Letters. 31, 4

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    Trace gas exchange from plot to landscape scale

    Christensen, T. R., Sommerkorn, M., Kaplan, J., Illeris, L., Friborg, Thomas, Søgaard, H., Nordstrøm, C., Hansen, Birger & Jonasson, S., 1998, 3rd Annual Report for ZERO. p. 39-43

    Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

  16. Published

    Monitoring the multi-year carbon balance of a subarctic palsa mire with micrometeorological techniques

    Christensen, T., Jackowicz-Korczynski, M., Aurela, M., Crill, P., Heliasz, M., Mastepanov, M. & Friborg, Thomas, 2012, In: Ambio. 41, 3 Suppl., p. 207-217 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    A catchment-scale carbon and greenhouse gas budget of a subarctic landscape

    Christensen, T. R., Johansson, P. T., Olsrud, M., Ström, L., Lindroth, A., Mastepanov, M., Malmer, N., Friborg, Thomas, Crill, P. & Callaghan, T., 2007, In: Philosophical Transactions of the Royal Society, Series A. 365, 1856, p. 1643-1656

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Observations and status of peatland greenhouse gas emissions in Europe

    Drösler, M., Freibauer, A., Christensen, T. R. & Friborg, Thomas, 2008, The Continental-Scale Greenhouse Gas Balance of Europe. Springer, p. 243-261 (Ecological Studies, Vol. 203).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  19. Published

    High Arctic soil CO2 and CH4 production controlled by temperature, water, freezing, and snow

    Elberling, Bo, Nordstrøm, C., Grøndahl, L., Søgaard, H., Friborg, Thomas, Christensen, T. R., Stroem, L., Marchand, F. & Nijs, I., 2008, In: Advances in Ecological Research. 40, p. 441-472

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Arctic vegetation damage by winter-generated coal mining pollution released upon thawing

    Elberling, Bo, Søndergaard, J. E., Jensen, L. A., Schmidt, L. B., Hansen, Birger, Asmund, G., Balic Zunic, Tonci, Hollesen, J., Hanson, S., Jansson, P. & Friborg, Thomas, 2007, In: Environmental Science & Technology (Washington). 41, p. 2407-2413

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Trace gas exchange in a high-Arctic valley: 2. Landscape CH4 fluxes measured and modeled using eddy correlation data

    Friborg, Thomas, Christensen, T. R., Hansen, B. U., Nordstroem, C. & Soegaard, H., 2000, In: Global Biogeochemical Cycles. 14, 3, p. 715-723

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Seasonal exchange of CH4 and CO2 during the short high-arctic summer in northern Greenland

    Friborg, Thomas, Hansen, Birger, Nordstrøm, C. & Søgaard, H., 1999, (Proceedings from "Greenhouse gases and their role in Climate Change: the status of research in Europe", Orvieto Italy, EU commission, 1999).

    Research output: Book/Report › Anthology › Research › peer-review

  23. Published

    Trace gas exchange in a high-arctic valley 2. Landscape CH4 fluxes measured and modelled using eddy correlation data

    Friborg, Thomas, Christensen, T. R., Hansen, Birger, Nordstrøm, C. & Søgaard, H., 2000, In: Global Biogeochemical Cycles. Vol. 14, no. 3, p. 715-723

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Thawing sub-artic permafrost - effects on vegetation and methane emissions

    Friborg, Thomas, Christensen, T. R., Johansson, T., Åkerman, H. J., Mastepanov, M., Malmer, N., Crill, P. & Svensson, B.H., 2004, In: Geophysical Research Letters. vol. 31, no. 4, p. 4

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    The use of carbon dioxide fluxes in climatology

    Friborg, Thomas, 1995, Museum Tusculanum.

    Research output: Book/Report › Ph.D. thesis › Research

  26. Published

    Rapid response of greenhouse gas emission to early spring thaw in a subarctic mire as shown by micrometeorological techniques

    Friborg, Thomas, Christensen, T. R. & Søgaard, H., 1997, In: Geophysical Research Letters. 24, 23, p. 3061-3064 97GL03024.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Measurements and modelling of surface fluxes of heat and water vapour form sites in the European Arctic

    Friborg, Thomas, Lloyd, C. R., Harding, R. J. & Aurela, M., 2001, In: Journal of Theoretical and Applied Climatology. 70, 1-4, p. 19-33

    Research output: Contribution to journal › Journal article › Research

  28. Published

    Geografer sendt til Sibirien

    Friborg, Thomas, 2001, Diversitet, forskning og formidling ved Det Naturvidenskabelige Fakultet, Københavns Universitet. DK, p. 26-27

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

  29. Published

    Methane exchange over a high arctic fen: A model approach based on eddy correlation data

    Friborg, Thomas, Christensen, T. R., Hansen, Birger, Nordstrøm, C. & Søgaard, H., 2000, In: Global Biogeochemical Cycles. 14, 3, p. 715 723

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    Carbon dioxide flux, transpiration and light response of millet in Sahel

    Friborg, Thomas, Bøgh, E. & Søgaard, H., 1997, In: Journal of Hydrology. 188-189, 1-4, p. 633-650

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. Published

    Micrometeorological Measurements of Methane Emission from Siberian Wetlands

    Friborg, Thomas, Søgaard, H., Lloyd, C. R., Pauskov, N. & Christensen, T. R., 1999, Ikke angivet. AGU, p. 61-61

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  32. Published

    Eddy correlation of the methane exchange over a High-Arctic fen

    Friborg, Thomas, Søgaard, H., Nordstrøm, C., Hansen, Birger & Christensen, T. R., 1999, In: Geophysical Research Abstracts. Vol 1, no. 2, p. 571-571

    Research output: Contribution to journal › Journal article › Research

  33. Published

    Episodical CO2 emission during shoulder seasons in the arctic

    Friborg, Thomas, Elberling, Bo, Hansen, Birger, Lund, M. & Mastepanov, M., 12 Dec 2010.

    Research output: Contribution to conference › Poster › Research

  34. Published

    Seasonal carbon dioxide balance and respiration of a high-arctic fen ecosystem in NE Greenland

    Friborg, Thomas, Nordstrøm, C., Søgaard, H., Christensen, T. R. & Hansen, Birger, 2001, In: Journal of Theoretical and Applied Climatology. 70, 1-4, p. 149-166

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    Palsa mires- CO2 exchange from Stordalen mire

    Friborg, Thomas, Johansson, P. T., Jackowicz-Korcynski, M., Christensen, T. R. & Crill, P. M., 2008.

    Research output: Contribution to conference › Poster › Research

  36. Published

     Winter time burst of CO2 from the High Arctic soils of Svalbard

    Friborg, Thomas, Hansen, Birger, Elberling, Bo, Jensen, L. A., Søndergaard, J. E. & Mastepanov, M., 2008.

    Research output: Contribution to conference › Poster › Research

  37. Published

    Controls on the greenhouse gas exchange of a high-arctic ecosystem

    Friborg, Thomas, Søgaard, H., Nordstrøm, C. & Hansen, Birger, 1999, In: Geografisk Tidsskrift. 99, p. 19-26

    Research output: Contribution to journal › Journal article › Research

  38. Published

    Siberian wetlands - where a sink is a source

    Friborg, Thomas, Søgaard, H., Christensen, T. R., Lloyd, C. R. & Panikov, N. S., 2003, In: Geophysical Research Letters. vol. 30, no. 21, p. 4

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Mind the (data) gap

    Friborg, Thomas, Sigsgaard, Charlotte, Hansen, Birger & Christóbal, J., 2019, Annual report Cards 2018. Christensen, T. R., Arndal, M. F. & Topp-Jørgensen, E. (eds.). 1 ed. Aarhus: University of Aarhus, p. 22-23 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Communication

  40. Published

    The variability of evaporation during the HAPEX-Sahel intensive observation period

    Gash, J., Kabat, P., Amadou, M., Bessemoulin, P., Billing, H., Blyth, E., De Bruin, H. A. R., Elbers, J., Friborg, Thomas, Harrison, G., Holwill, C. J., Lloyd, C. R., Lhomme, J., Moncrieff, J. B., Monteny, B. A., Puech, D., Søgaard, H., Tuzet, A. & Verhoef, A., 1997, In: Journal of Hydrology. Hapex-Sahel special issue, 188-189, 1-4, p. 385-399

    Research output: Contribution to journal › Journal article › Research

  41. Published

    Temperature and snow-melt controls on interannual variability in carbon exchange in the high Arctic

    Groendahl, L., Friborg, Thomas & Søgaard, H., 2007, In: Journal of Theoretical and Applied Climatology. 88, 1-2, p. 111-125 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Spatial and interannual variability of trace gas fluxes in a heterogeneous High-Arctic landscape

    Grøndahl, L., Friborg, Thomas, Christensen, T., Ekberg, A., Elberling, Bo, Illeris, L., Nordstrøm, C., Rennermalm, Å., Sigsgaard, Charlotte & Søgaard, H., 2008, High-Arctic Ecosystem Dynamics in a Changing Climate: Advances in Ecological Research. Meltofte, H., Christensen, T., Elberling, B., Forchammer, M. & Rasch, M. (eds.). New York: Elsevier, Vol. 40. p. 473-498 25 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  43. Published

    Bulk Transfer Coefficients Estimated From Eddy-Covariance Measurements Over Lakes and Reservoirs

    Guseva, S., Armani, F., Desai, A. R., Dias, N. L., Friborg, Thomas, Iwata, H., Jansen, J., Lükő, G., Mammarella, I., Repina, I., Rutgersson, A., Sachs, T., Scholz, K., Spank, U., Stepanenko, V., Torma, P., Vesala, T. & Lorke, A., 27 Jan 2023, In: Journal of Geophysical Research: Atmospheres. 128, 2, 20 p., e2022JD037219.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    The relationship between Landsat TM derived NDVI and LAI in a high arctic area

    Hansen, Birger, Tamstorf, M., Friborg, Thomas, Nordstrøm, C. & Søgaard, H., 1998.

    Research output: Contribution to conference › Paper › Research › peer-review

  45. Published

    Main work carried out at Zackenberg

    Hansen, Birger, Friborg, Thomas & Nordstrøm, C., 1998, LAPP 2nd Annual Report (1997-1998). p. 51-55

    Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

  46. Published

    The biophysical climate mitigation potential of boreal peatlands during the growing season

    Helbig, M., Waddington, J. M., Alekseychik, P., Amiro, B., Aurela, M., Barr, A. G., Black, T. A., Carey, S. K., Chen, J., Chi, J., Desai, A. R., Dunn, A., Euskirchen, E. S., Flanagan, L. B., Friborg, T., Garneau, M., Grelle, A., Harder, S., Heliasz, M., Humphreys, E. R. & 37 others, Ikawa, H., Isabelle, P., Iwata, H., Jassal, R., Korkiakoski, M., Kurbatova, J., Kutzbach, L., Lapshina, E., Lindroth, A., Löfvenius, M. O., Lohila, A., Mammarella, I., Marsh, P., Moore, P. A., Maximov, T., Nadeau, D. F., Nicholls, E. M., Nilsson, M. B., Ohta, T., Peichl, M., Petrone, R. M., Prokushkin, A., Quinton, W. L., Roulet, N., Runkle, B. R. K., Sonnentag, O., Strachan, I. B., Taillardat, P., Tuittila, E., Tuovinen, J., Turner, J., Ueyama, M., Varlagin, A., Vesala, T., Wilmking, M., Zyrianov, V. & Schulze, C., 2020, In: Environmental Research Letters. 15, 10, 14 p., 104004.

    Research output: Contribution to journal › Letter › Research › peer-review

  47. Published

    Increasing contribution of peatlands to boreal evapotranspiration in a warming climate

    Helbig, M., Waddington, J. M., Alekseychik, P., Amiro, B. D., Aurela, M., Barr, A. G., Black, T. A., Blanken, P. D., Carey, S. K., Chen, J., Chi, J., Desai, A. R., Dunn, A., Euskirchen, E. S., Flanagan, L. B., Forbrich, I., Friborg, T., Grelle, A., Harder, S., Heliasz, M. & 39 others, Humphreys, E. R., Ikawa, H., Isabelle, P., Iwata, H., Jassal, R., Korkiakoski, M., Kurbatova, J., Kutzbach, L., Lindroth, A., Lofvenius, M. O., Lohila, A., Mammarella, I., Marsh, P., Maximov, T., Melton, J. R., Moore, P. A., Nadeau, D. F., Nicholls, E. M., Nilsson, M. B., Ohta, T., Peichl, M., Petrone, R. M., Petrov, R., Prokushkin, A., Quinton, W. L., Reed, D. E., Roulet, N. T., Runkle, B. R. K., Sonnentag, O., Strachan, I. B., Taillardat, P., Tuittila, E., Tuovinen, J., Turner, J., Ueyama, M., Varlagin, A., Wilmking, M., Wofsy, S. C. & Zyrianov, V., 2020, In: Nature climate change. 10, p. 555–560 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Quantification of C uptake in subarctic birch forest after setback by an extreme insect outbreak

    Heliasz, M., Johansson, T., Lindroth, A., Mölder, M., Mastepanov, M., Friborg, Thomas, Callaghan, T. V. & Christensen, T. R., 12 Jan 2011, In: Geophysical Research Letters. 38, L01704, p. 1704 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Catchment-Wide Atmospheric Greenhouse Gas Exchange as Influenced by Land Use Diversity

    Herbst, M., Friborg, Thomas, Ringgaard, R. & Søgaard, H., 27 Jan 2011, In: Vadose Zone Journal. 10, 1, p. 67 - 77 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    Interpreting the variations in atmospheric methane fluxes observed above a restored wetland

    Herbst, M., Friborg, Thomas, Ringgaard, R. & Søgaard, H., Jul 2011, In: Agricultural and Forest Meteorology. 151 , 7, p. 841-851 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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