page21 policy paper

Policy paper for the project page21 here

The PAGE21 project has now been officially closed. The four years of research came to an end on October 31 2015, leaving only...

page21-featured-at-the-2015-arctic-circle-conference-in-reykjavik

PAGE21 project was featured in a plenary session "Permafrost in the 21st century" at the 2015 Arctic Circle conference in Reykjavik,...

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Inspiring Generations event focuses on contributing to society and collaboration
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Eight Marie Curie Fellowships from European Commission for research at the UvA
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UvA biologists develop new record bright red fluorescent protein
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Finding the sweet spot in sugar reductions
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Publications

Gil, J., Pérez, T., Boering, K., Martikainen, P. and Biasi, C.: Mechanisms responsible for high N2O emissions from subarctic permafrost peatlands studied via stable isotope techniques, Global Biogeochem. Cycles, 31, 172-189, 2017. DOI: 10.1002/2015GB005370
Kaiser Sonja, Mathias Göckede, Karel Castro-Morales, Christian Knoblauch, Altug Ekici, Thomas Kleinen, Sebastian Zubrzycki, Torsten Sachs, Christian Wille, and Christian Beer.(2017): Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) Geosci. Model Dev., 10, 333-358, 2017. doi:10.5194/gmd-10-333-2017
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., and Göckede, M.: Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain, Glob. Change Biol., 23, 2396-2412, 2017.
Schaller, C., Göckede, M., and Foken, T.: Flux calculation of short turbulent events – comparison of three methods, Atmos. Meas. Tech., 10, 869-880, 2017.
Voigt, C., Marushchak, M. E., Lamprecht, R. E., Jackowicz-Korczynski, M., Lindgren, A., Mastepanov, M., Granlund, L., Christensen, T. R., Tahvanainen, T., Martikainen, P. J. and Biasi, C.: Increased nitrous oxide emissions from Arctic peatlands after permafrost thaw, Proceedings of the National Academy of Sciences, 2017. DOI: 10.1073/pnas.1702902114

Bartsch, A., Widhalm, B., Kuhry, P., Hugelius, G., Palmtag, J., Siewert, M.(2016): Can C-band synthetic aperture radar be used to estimate soil organic carbon storage in tundra? Biogeosciences, 13, 5453-5470, 2016 doi:10.5194/bg-13-5453-2016
Boike, J., Grau, T., Heim, B., Günther, F., Langer, M., Muster, S., Gouttevin, I., Lange, S. (2016):Satellite-derived changes in the permafrost landscape of central Yakutia, 2000–2011: Wetting, drying, and fires. Global and Planetary Change, 139: 116-127.
Diáková, K., Čapek, P., Kohoutová, I., Mpamah, P., Bárta, J., Biasi, C., Martikainen, P., Šantrůčková, H. (2016) Heterogeneity of carbon loss and its temperature sensitivity in East-European subarctic tundra soils. FEMS Microbiology Ecology 92: fiw140.
Crichton, K. A., Bouttes, N., Roche, D. M., Chappellaz, J. & Krinner, G.: Permafrost carbon as a missing link to explain CO 2 changes during the last deglaciation. Nature Geoscience 9, 683–686 (2016) doi:10.1038/ngeo2793
Hagemann, S.; Blome, T.; Ekici, A.; Beer, C. Soil-frost-enabled soil-moisture–precipitation feedback over northern high latitudes. 2016 | Earth Syst. Dynam. | 7 (611-625). doi:10.5194/esd-7-611-2016.
Liljedahl, Anna K., Julia Boike, Ronald P. Daanen, Alexander N. Fedorov, Gerald V. Frost, Guido Grosse, Larry D. Hinzman, Yoshihiro Iijma, Janet C. Jorgenson, Nadya Matveyeva, Marius Necsoiu, Martha K. Raynolds, Vladimir E. Romanovsky, Jörg Schulla, Ken D. Tape, Donald A. Walker, Cathy J. Wilson, Hironori Yabuki & Donatella Zona: Pan-Arctic ice-wedge degradation in warming permafrost and its influence on tundra hydrology. Nature Geoscience (2016) doi:10.1038/ngeo2674
Kittler, F., Burjack, I., Corradi, C. A. R., Heimann, M., Kolle, O., Merbold, L., Zimov, N., Zimov, S., and Göckede, M.: Impacts of a decadal drainage disturbance on surface–atmosphere fluxes of carbon dioxide in a permafrost ecosystem, Biogeosciences, 13, 5315-5332, 2016.
Kwon, M. J., Heimann, M., Kolle, O., Luus, K. A., Schuur, E. A. G., Zimov, N., Zimov, S. A., and Göckede, M.: Long-term drainage reduces CO2 uptake and increases CO2 emission on a Siberian floodplain due to shifts in vegetation community and soil thermal characteristics, Biogeosciences, 13, 4219-4235, 2016
Marushchak, M. E., Friborg, T., Biasi, C., Herbst, M., Johansson, T., Kiepe, I., Liimatainen, M., Lind, S. E., Martikainen, P. J., Virtanen, T., Soegaard, H., and Shurpali, N. J.: Methane dynamics in the subarctic tundra: combining stable isotope analyses, plot- and ecosystem-scale flux measurements, Biogeosciences, 13, 597-608, doi:10.5194/bg-13-597-2016, 2016.
McGuire, A. D.; Koven, C.; Lawrence, D. M.; Clein, J. S.; Xia, J.; Beer, C.; Burke, E.; Chen, G.; Chen, X.; Delire, C.; Jafarov, E.; MacDougall, A. H.; Marchenko, S.; Nicolsky, D; Peng, S.; Rinke, A.; Saito, K.; Zhang, W.; Alkama, R.; Bohn, T. J.; Ciais, P.; Decharme, B; Ekici, A.; Gouttevin, I.; Hajima, T.; Hayes, D. J.; Ji, D.; Krinner, G.; Lettenmaier, D. P.; Luo, Y.; Miller, P. A.; Moore, J. C.; Romanovsky, V.; Schädel, C.; Schaefer, K.; Schuur, E. A. G.; Smith, B.; Sueyoshi, T.; Zhuang, Q. Variability in the sensitivity among model simulations of permafrost and carbon dynamics in the permafrost region between 1960 and 2009. 2016 | Global Biogeochem Cycles | 30 (1015-1037)
Peng, S., Ciais, P., Krinner, G., Wang, T., Gouttevin, I., McGuire, A. D., et al. (2016). Simulated high-latitude soil thermal dynamics during the past 4 decades. /Cryosphere/, /10/(1), 179–192.
Porada, P.; Lenton, T. M.; Pohl, A.; Weber, B.; Mander, L.; Donnadieu, Y.; Beer, C.; Pöschl, U.; Kleidon, A. High potential for weathering and climate effects of non-vascular vegetation in the Late Ordovician 2016 | Nat. Commun. | 7: 12113, DOI: 10.1038/ncomms12113
Schädel, C., Bader, M., Schuur, E., Biasi, C., Bracho, R., Čapek, P., De Baets, S., Diáková, K., Ernakovich, Estop-Aragones, J., Graham, D., Hartley, I., Iversen, C., Kane, E., Knoblauch, C., Lupascu, M., Martikainen, P., Natali, S., Norby, R., O’Donnell, J., Chowdhury, T., Šantrůčková, H., Shaver, G., Sloan, V., Treat, C., Turetsky, Waldrop, M., Wickland, K. (2016). Potential carbon emissions dominated by carbon dioxide from thawed permafrost soils. Nature Climate Change 6: doi: 10.1038/nclimate3054.
Siewert, M.B., Hugelius, G., Heim, B., Faucherre, S., 2016. Landscape controls and vertical variability of soil organic carbon storage in permafrost-affected soils of the Lena River Delta. CATENA 147, 725–741. doi:10.1016/j.catena.2016.07.048
Voigt, C., Lamprecht, R. E., Marushchak, M. E., Lind, S. E., Novakovskiy, A., Aurela, M., Martikainen, P. J. and Biasi, C.: Warming of subarctic tundra increases emissions of all three important greenhouse gases - carbon dioxide, methane, and nitrous oxide, Global Change Biol., 2016. DOI: 10.1111/gcb.13563
Wang, W., Rinke, A., Moore, J. C., Ji, D., Cui, X., Peng, S., Lawrence, D. M., McGuire, A. D., Burke, E. J., Chen, X., Decharme, B., Koven, C., MacDougall, A., Saito, K., Zhang, W., Alkama, R., Bohn, T. J., Ciais, P., Delire, C., Gouttevin, I., Hajima, T., Krinner, G., Lettenmaier, D. P., Miller, P. A., Smith, B., Sueyoshi, T., and Sherstiukov, A. B.(2016): Evaluation of air–soil temperature relationships simulated by land surface models during winter across the permafrost region, /The Cryosphere/, *10*, 1721-1737, doi:10.5194/tc-10-1721-2016
Westermann, S., Langer, M., Boike, J., Heikenfeld, M., Peter, M., Etzelmüller, B., and Krinner, G. (2016):Simulating the thermal regime and thaw processes of ice-rich permafrost ground with the land-surface model CryoGrid 3. Geoscientific Model Development, 9: 523-546, doi:10.5194/gmd-9-523-2016.
Zhu, D., Peng, S., Ciais, P., Zech, R., Krinner, G., Zimov, S., et al. (2016). Simulating soil organic carbon in yedoma deposits during the Last Glacial Maximum in a land surface model. /Geophysical Research Letters/, /43/(10), 5133–5142.

Aas, K. S. , Berntsen, T. K. , Boike, J. , Etzelmüller, B. , Kristjánsson, J. E. , Maturilli, M. , Schuler, T. V. , Stordal, F. and Westermann, S.: A Comparison between Simulated and Observed Surface Energy Balance at the Svalbard Archipelago , Journal of Applied Meteorology and Climatology, 54 (5), pp. 1102-1119 . doi: 10.1175/JAMC-D-14-0080.1., 2015.
André, C., C. Ottlé, A. Royer, F. Maignan, Land surface temperature retrieval over circumpolar Arctic using SSM/I–SSMIS and MODIS data, Remote Sensing of Environment, Volume 162, 1 June 2015, Pages 1-10, ISSN 0034-4257, http://dx.doi.org/10.1016/j.rse.2015.01.028.
Biskaborn BK, Lantuit H, Dreßler A, Lanckman JP, Jóhannsson H, Romanovsky V, Cable W, Sergeev D, Vieira G, Pogliotti P, Nötzli J, Christiansen HH (2015): Quality assessment of permafrost thermal state and active layer thickness data in GTN-P. GEOQuébec 2015, Conference Paper, Québec.
Beck, I., Ludwig, R., Bernier, M., Strozzi, T., and Boike, J.: Vertical movements of frost mounds in subarctic permafrost regions analyzed using geodetic survey and satellite interferometry, Earth Surf. Dynam., 3, 409-421, doi:10.5194/esurf-3-409-2015, 2015.
Beck, I, Ludwig, R, Bernier, M, Lévesque, E, and Boike, J (2015), Assessing Permafrost Degradation and Land Cover Changes (1986–2009) using Remote Sensing Data over Umiujaq, Sub-Arctic Québec. Permafrost and Periglac. Process., 26, 129–141. doi: 10.1002/ppp.1839.
Beermann, F., Teltewskoi, A., Fiencke, C., Pfeiffer, E.-M., & Kutzbach, L. (2014). Stoichiometric analysis of nutrient availability (N, P, K) within soils of the polygonal tundra. Biogeochemistry, 122(2-3), 211-227. doi:10.1007/s10533-014-0037-4
Biskaborn, B. K., Lanckman, J.-P., Lantuit, H., Elger, K., Streletskiy, D. A., Cable, W. L., and Romanovsky, V. E.: The new database of the Global Terrestrial Network for Permafrost (GTN-P), Earth Syst. Sci. Data, 7, 245-259, doi:10.5194/essd-7-245-2015, 2015.
Boike, J., Georgi, C., Kirilin, G., Muster, S., Abramova, K., Fedorova, I., Chetverova, A., Grigoriev, M., Bornemann, N., and Langer, M.: Thermal processes of thermokarst lakes in the continuous permafrost zone of northern Siberia – observations and modeling (Lena River Delta, Siberia), Biogeosciences, 12, 5941-5965, doi:10.5194/bg-12-5941-2015, 2015.
Bolch, T. & Christiansen, H.H. (2015): Mountains, Lowlands, and Coasts: the Physiography of Cold Landscapes. In Haeberli,W. & Whiteman, C (eds.) Snow and Ice-Related Hazards, Risks, and Disasters. Elsevier. doi: 10.1016/B978-0-12-394849-6.00007-X => Section in an edited book
Chadburn, S., Burke, E., Essery, R., Boike, J., Langer, M., Heikenfeld, M., Cox, P., and Friedlingstein, P.: An improved representation of physical permafrost dynamics in the JULES land-surface model, Geosci. Model Dev., 8, 1493-1508, doi:10.5194/gmd-8-1493-2015, 2015.
Chadburn, S. E., Burke, E. J., Essery, R. L. H., Boike, J., Langer, M., Heikenfeld, M., Cox, P. M., and Friedlingstein, P.: Impact of model developments on present and future simulations of permafrost in a global land-surface model, The Cryosphere, 9, 1505-1521, doi:10.5194/tc-9-1505-2015, 2015.
Ekici, A., Chadburn, S., Chaudhary, N., Hajdu, L. H., Marmy, A., Peng, S., Boike, J., Burke, E., Friend, A. D., Hauck, C., Krinner, G., Langer, M., Miller, P. A., and Beer, C.: Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes, The Cryosphere, 9, 1343-1361, doi:10.5194/tc-9-1343-2015, 2015.
Fritz, M., Deshpande, B.N., Bouchard, F., Högström, E., Malenfant-Lepage, J., Morgenstern, A., Nieuwendam, A., Oliva, M., Paquette, M., Rudy, A.C.A., Siewert, M.B., Sjöberg, Y. and Weege, S., 2015. Brief Communication: Future avenues for permafrost science from the perspective of early career researchers. The Cryosphere 9, 1715–1720. doi:10.5194/tc-9-1715-2015
Jammet, M., P. Crill, S. Dengel, and T. Friborg (2015), Large methane emissions from a subarctic lake during spring thaw: Mechanisms and landscape significance, J. Geophys. Res. Biogeosci., 120, doi:10.1002/2015JG003137
Koven, C.D., Schuur, E.A.G., Schädel, C., Bohn, T.J., Burke, E.J., Chen, G., Chen, X., Ciais, P., Grosse, G., Harden, J.W., Hayes, D.J., Hugelius, G. Jafarov, E.E., Krinner, G., Kuhry, P., Lawrence, D.M., MacDougall, A.H., Marchenko, S.S., McGuire, A.D., Natali, S M., Nicolsky, D.J., Olefeldt, D., Peng, S., Romanovsky, V.E., Schaefer, K.M., Strauss, J. Treat, C.C. and Turetsky, M., 2015. A simplified, data-constrained approach to estimate the permafrost carbon–climate feedback. Phil. Trans. R. Soc. A 373: 20140423. http://dx.doi.org/10.1098/rsta.2014.0423
Langer, M., Westermann, S., Walter Anthony, K., Wischnewski, K., and Boike, J.: Frozen ponds: production and storage of methane during the Arctic winter in a lowland tundra landscape in northern Siberia, Lena River delta, Biogeosciences, 12, 977-990, doi:10.5194/bg-12-977-2015, 2015.
Mora, C., Vieira, G., Pina, P., Lousada, M., and Christiansen, H.H., 2015. Land Cover Classification Using High-Resolution Aerial Photography in Adventdalen, Svalbard. Geografiska Annaler: Series A, Physical Geography, 97, 473–488. doi:10.1111/geoa.12088
Muster, S., Langer, M., Abnizova, A., Young, K.L., Boike, J. Spatio-temporal sensitivity of MODIS land surface temperature anomalies indicates high potential for large-scale land cover change detection in permafrost landscapes. Remote Sensing of Environment, 168, 1–12, doi:10.1016/j.rse.2015.06.017, 2015.
Palmtag, J., Hugelius, G., Lashchinskiy, N., Tamstorf, M. P., Richter, A., Elberling, B. and Kuhry, P., 2015. Storage, landscape distribution and burial history of soil organic matter in contrasting areas of continuous permafrost. Arctic, Antarctic and Alpine Research 47 (1): 71–88. DOI: http://dx.doi.org/10.1657/AAAR0014-027
Parmentier, F. J. W., W. Zhang, Y. Mi, X. Zhu, J. van Huissteden, D. J. Hayes, Q. Zhuang, T. R. Christensen, and A. D. McGuire (2015), Rising methane emissions from northern wetlands associated with sea ice decline, Geophys. Res. Lett.,42, 7214–7222, doi:10.1002/2015GL065013.
Rawlins, M. A., McGuire, A. D., Kimball, J. S., Dass, P., Lawrence, D., Burke, E., et al. (2015). Assessment of model estimates of land-atmosphere CO2 exchange across Northern Eurasia. /Biogeosciences/, /12/(14), 4385–4405.
Schneider von Deimling, T., Grosse, G., Strauss, J., Schirrmeister, L., Morgenstern, A., Schaphoff, S., Meinshausen, M., and Boike, J.: Observation-based modelling of permafrost carbon fluxes with accounting for deep carbon deposits and thermokarst activity, Biogeosciences, 12, 3469-3488, doi:10.5194/bg-12-3469-2015, 2015.
Schuur, E.A.G., McGuire, A.D., Schädel, C., Grosse, G., Harden, J.W., Hayes, D.J., Hugelius, G., Koven, C.D., Kuhry, P., Lawrence, D.M., Natali, S.M., Olefeldt, D., Romanovsky, V.E., Schaefer, K., Turetsky, M.R., Treat, C.D. and Vonk, J.E., 2015. Climate change and the permafrost carbon feedback. Nature 520, doi:10.1038/nature14338
Siewert, M. B., J. Hanisch, N. Weiss, P. Kuhry, T. C. Maximov, and G. Hugelius (2015), Comparing carbon storage of Siberian tundra and taiga permafrost ecosystems at very high spatial resolution, J. Geophys. Res. Biogeosci., 120, 1973–1994, doi:10.1002/2015JG002999.
Wang, T., Peng, S. S., Krinner, G., Ryder, J., Li, Y., Dantec-Nedelec, S., et al. (2015). Impacts of Satellite-Based Snow Albedo Assimilation on Offline and Coupled Land Surface Model Simulations. /Plos One/, /10/(9).
Weiss, N., Blok, D., Elberling, B., Hugelius, G., Jørgensen, C.J., Siewert, M.B., Kuhry, P. (in press) Thermokarst dynamics and soil organic matter characteristics controlling initial carbon release from permafrost soils in the Siberian Yedoma region, Sedimentary Geology, doi:10.1016/j.sedgeo.2015.12.004
Westermann, S., Elberling, B., Højlund Pedersen, S., Stendel, M., Hansen, B. U., and Liston, G. E.:Future permafrost conditions along environmental gradients in Zackenberg, Greenland, The Cryosphere, 9, 719-735, doi:10.5194/tc-9-719-2015, 2015
Widhalm, B., Bartsch, A., Heim, B.:A novel approach for the characterization of tundra wetland regions with C-band SAR satellite data. International Journal of Remote Sensing. Volume 36, Issue 22, 2015.DOI:10.1080/01431161.2015.1101505
Zhu, D., Peng, S. S., Ciais, P., Viovy, N., Druel, A., Kageyama, M., et al. (2015). Improving the dynamics of Northern Hemisphere high-latitude vegetation in the ORCHIDEE ecosystem model. /Geoscientific Model Development/, /8/(7), 2263–2283.

Antcibor, I., Eschenbach, A., Zubrzycki, S., Kutzbach, L., Bolshiyanov, D., and Pfeiffer, E.-M.: Trace metal distribution in pristine permafrost-affected soils of the Lena River delta and its hinterland, northern Siberia, Russia, Biogeosciences, 11, 1-15, doi:10.5194/bg-11-1-2014, 2014.
Beermann F., Teltewskoi, A. Fiencke C., Pfeiffer E.-M., Kutzbach L.: Stoichiometric analysis of nutrient availability (N, P, K) within soils of the polygonal tundra. Biogeochemistry, Vol. 122, Issue 2-3 , pp 211-227. DOI:10.1007/s10533-014-0037-4
Benavides-Pinjosovsky, H. S., Ottlé, C., Thiria, S., Brajard, J., Bradan, F., & Maugis, P. (2014). Land Surface Temperature Variational Assimilation within the ORCHIDEE Continental Surface model. In EGU General Assembly Conference Abstracts (Vol. 16, p. 15407).
Blikra, L.H. & Christiansen, H.H. (2014) A field-based model of permafrost-controlled rockslide deformation in northern Norway. Geomorphology, Vol. 208, 34-49. doi:10.1016/j.geomorph.2013.11.014
Bosiö, J., Stiegler, C., Johansson, M., Mbufong, H.N. & Christensen, T.R. (2014). Increased photosynthesis compensates for shorter growing season in subarctic tundra - eight years of snow accumulation manipulations. Climatic Change DOI 10.1007/s10584-014-1247-4.
Budishchev, A., Mi, Y., van Huissteden, J., Belelli-Marchesini, L., Schaepman-Strub, G., Parmentier, F. J. W., Fratini, G., Gallagher, A., Maximov, T. C., and Dolman, A. J.: Evaluation of a plot-scale methane emission model using eddy covariance observations and footprint modelling, Biogeosciences, 11, 4651-4664, doi:10.5194/bg-11-4651-2014, 2014.
Crichton, K. A., Roche, D. M., Krinner, G., & Chappellaz, J. (2014). A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model. /Geoscientific Model Development/, /7/(6), 3111–3134.
Ekici, A., Beer, C., Hagemann, S., Boike, J., Langer, M. and Hauck, C. (2014): Simulating high-latitude permafrost regions by the JSBACH terrestrial ecosystem model, Geosci. Model Dev., 7, 631-647, doi:10.5194/gmd-7-631-2014, 2014.
Gisnås, K., Westermann, S., Schuler, T. V., Litherland, T., Isaksen, K., Boike, J., and Etzelmüller, B.: A statistical approach to represent small-scale variability of permafrost temperatures due to snow cover, The Cryosphere, 8, 2063-2074, doi:10.5194/tc-8-2063-2014, 2014.
Hagemann, S., Blome, T., Saeed, F., Stacke (2014) Perspectives in Modelling Climate–Hydrology Interactions, Surveys in Geophysics, 35, 739-764, doi: 10.1007/s10712-013-9245-z
Hugelius, G., Strauss, J., Zubrzycki, S., Harden, J. W., Schuur, E. A. G., Ping, C.-L., Schirrmeister, L., Grosse, G., Michaelson, G. J., Koven, C. D., O'Donnell, J. A., Elberling, B., Mishra, U., Camill, P., Yu, Z., Palmtag, J., and Kuhry, P.: Estimated stocks of circumpolar permafrost carbon with quantified uncertainty ranges and identified data gaps, Biogeosciences, 11, 6573-6593, doi:10.5194/bg-11-6573-2014, 2014.
Högström, E.; Trofaier, A.M.; Gouttevin, I.; Bartsch, A (2014): Assessing Seasonal Backscatter Variations with Respect to Uncertainties in Soil Moisture Retrieval in Siberian Tundra Regions. Remote Sens. 2014, 6, 8718-8738. doi:10.3390/rs6098718
Iijima, Y, Ohta, T., Kotani, A., Fedorov, A.N., Kodama, Y. , Maximov, T.C. (2013): Sap flow changes in relation to permafrost degradation under increasing precipitation in an eastern Siberian larch forest. Ecohydrology, DOI: 10.1002/eco.1366
Jørgensen, C.J., Johansen K.M.L., Westergaard-Nielsen, A. and Elberling, B., 2015. High Arctic CH4 sink reverses the CH4 budget of Northeast Greenland. Nature Geoscience 8: 20–23. doi:10.1038/ngeo2305
Kasurinen, V., Alfredsen, K., Kolari, P., Mammarella, I., Alekseychik, P., Rinne, J., Vesala, T., Bernier, P., Boike, J., Langer, M., Belelli Marchesini, L., van Huissteden, K., Dolman, H., Sachs, T., Ohta, T., Varlagin, A., Rocha, A., Arain, A., Oechel, W., Lund, M., Grelle, A., Lindroth, A., Black, A., Aurela, M., Laurila, T., Lohila, A. and Berninger, F. (2014): Latent heat exchange in the boreal and arctic biomes. Global Change Biology. doi: 10.1111/gcb.12640
Kevin Schaefer, Hugues Lantuit, Vladimir E Romanovsky, Edward A G Schuur and Ronald Witt. The impact of the permafrost carbon feedback on global climate. 2014 Environ. Res. Lett. 9 085003. doi:10.1088/1748-9326/9/8/085003
Lüers, J., Westermann, S., Piel, K., and Boike, J.: Annual CO2 budget and seasonal CO2 exchange signals at a high Arctic permafrost site on Spitsbergen, Svalbard archipelago, Biogeosciences, 11, 6307-6322, doi:10.5194/bg-11-6307-2014, 2014.
Mbufong, H. N., Lund, M., Aurela, M., Christensen, T. R., Eugster, W., Friborg, T., Hansen, B. U., Humphreys, E. R., Jackowicz-Korczynski, M., Kutzbach, L., Lafleur, P. M., Oechel, W. C., Parmentier, F. J. W., Rasse, D. P., Rocha, A. V., Sachs, T., van der Molen, M. K., and Tamstorf, M. P.: Assessing the spatial variability in peak season CO2 exchange characteristics across the Arctic tundra using a light response curve parameterization, Biogeosciences, 11, 4897-4912, doi:10.5194/bg-11-4897-2014, 2014.
Mechri, R., Ottlé, C., Pannekoucke, O., & Kallel, A. (2014). Genetic particle filter application to land surface temperature downscaling. Journal of Geophysical Research: Atmospheres, 119(5), 2131-2146. DOI: 10.1002/2013JD020354
Mi, Y., van Huissteden, J., Parmentier, F. J. W., Gallagher, A., Budishchev, A., Berridge, C. T., and Dolman, A. J.: Improving a plot-scale methane emission model and its performance at a northeastern Siberian tundra site, Biogeosciences, 11, 3985-3999, doi:10.5194/bg-11-3985-2014, 2014..
Nauta, A.L., Heijmans, M.M.P.D., Blok, D., Limpens, J., Elberling, B., Gallagher, A., Li, B., Petrov, R.E., Maximov, T.C., van Huissteden, J. and Berendse, F., 2015. Permafrost collapse after shrub removal shifts tundra ecosystem into methane source. Nature Climate Change 5: 67–70. doi:10.1038/nclimate2446
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