Sebastian Westermann

Image of Sebastian Westermann
Norwegian version of this page
Phone +47 22855927
Room 408
Username
Visiting address Sem Sælands vei 1 Geologibygningen 0371 OSLO
Postal address Postboks 1047 Blindern 0316 OSLO

Scientific Profile

  • Modeling, remote sensing and field measurements in permafrost areas
  • Field research campaigns in Svalbard, Norway, Alaska, Mongolia and Greenland
  • Validation studies of MODIS Land Surface Temperature at Arctic sites
  • Field measurements and modeling of the surface energy balance at Arctic sites
  • Responsible for the CryoGrid permafrost model suite at University of Oslo. Three models of different  complexity, CryoGrid 1 and CryoGrid 2 peer-reviewed, CryoGrid 3 operational and currently in the validation stage
  • Subgrid variability and scaling strategies of permafrost variables
  • Carbon balance in permafrost regions in a changing climate

Higher Education

Publications

  • Nitzbon, Jan; Langer, Moritz; Martin, Leo; Westermann, Sebastian; Schneider von Deimling, T & Boike, Julia (2021). Effects of multi-scale heterogeneity on the simulated evolution of ice-rich permafrost lowlands under a warming climate. The Cryosphere.  ISSN 1994-0416. . doi: 10.5194/tc-15-1399-2021
  • Stuenzi, Simone Maria; Boike, Julia; Cable, William; Herzschuh, Ulrike; Kruse, Stefan; Pestryakova, Luidmila A.; Schneider von Deimling, T; Westermann, Sebastian; Zakharov, Evgenii & Langer, Moritz (2021). Variability of the surface energy balance in permafrost-underlain boreal forest. Biogeosciences.  ISSN 1726-4170. . doi: 10.5194/bg-18-343-2021
  • Zweigel, R. B.; Westermann, Sebastian; Nitzbon, Jan; Langer, M; Boike, Julia; Etzelmüller, Bernd & Schuler, Thomas Vikhamar (2021). Simulating Snow Redistribution and its Effect on Ground Surface Temperature at a High‐Arctic Site on Svalbard. Journal of Geophysical Research (JGR): Earth Surface.  ISSN 2169-9003. . doi: 10.1029/2020JF005673
  • Etzelmüller, Bernd; Patton, Henry; Schomacker, Anders; Czekirda, Justyna; Girod, Luc Maurice Ramuntcho; Hubbard, Alun Lloyd; Lilleøren, Karianne Staalesen & Westermann, Sebastian (2020). Icelandic permafrost dynamics since the Last Glacial Maximum – model results and geomorphological implications. Quaternary Science Reviews.  ISSN 0277-3791.  233:106236 . doi: 10.1016/j.quascirev.2020.106236 Full text in Research Archive. Show summary
  • Aalstad, Kristoffer; Westermann, Sebastian & Bertino, Laurent (2020). Evaluating satellite retrieved fractional snow-covered area at a high-Arctic site using terrestrial photography. Remote Sensing of Environment.  ISSN 0034-4257.  239 . doi: 10.1016/j.rse.2019.111618 Full text in Research Archive. Show summary
  • Angelopoulos, Michael; Overduin, Pier Paul; Westermann, Sebastian; Tronicke, Jens; Strauss, Jens; Schirrmeister, Lutz; Biskaborn, Boris K.; Liebner, Susanne; Maksimov, Georgii; Grigoriev, Mikhail N & Grosse, Guido (2020). Thermokarst Lake to Lagoon Transitions in Eastern Siberia: Do Submerged Taliks Refreeze?. Journal of Geophysical Research (JGR): Earth Surface.  ISSN 2169-9003.  125(10) . doi: 10.1029/2019JF005424 Full text in Research Archive.
  • Cai, Lei; Lee, Hanna; Aas, Kjetil Schanke & Westermann, Sebastian (2020). Projecting circum-Arctic excess-ground-ice melt with a sub-grid representation in the Community Land Model. The Cryosphere.  ISSN 1994-0416.  14(12), s 4611- 4626 . doi: 10.5194/tc-14-4611-2020 Full text in Research Archive. Show summary
  • Chadburn, Sarah E.; Aalto, Tuula; Aurela, Mika; Baldocchi, Dennis; Biasi, Christina; Boike, Julia; Burke, Eleanor J.; Comyn-platt, Edward; Dolman, A Johannes; Duran-Rojas, Carolina; Fan, Yuanchao; Friborg, Thomas; Gao, Yao; Gedney, Nicola; Göckede, Mathias; Hayman, Garry D.; Holl, David; Hugelius, Gustaf; Kutzbach, Lars; Lee, Hanna; Lohila, Annalea; Parmentier, Frans-Jan W.; Sachs, Torsten; Shurpali, Narasinha J. & Westermann, Sebastian (2020). Modeled Microbial Dynamics Explain the Apparent Temperature Sensitivity of Wetland Methane Emissions. Global Biogeochemical Cycles.  ISSN 0886-6236.  34(11) . doi: 10.1029/2020GB006678 Full text in Research Archive.
  • Chaudhary, Nitin; Westermann, Sebastian; Lamba, Shubhangi; Shurpali, Narasinha J.; Sannel, A. Britta K.; Schurgers, Guy; Miller, Paul A. & Smith, Benjamin (2020). Modelling past and future peatland carbon dynamics across the pan‐Arctic. Global Change Biology.  ISSN 1354-1013.  26(7), s 4119- 4133 . doi: 10.1111/gcb.15099 Full text in Research Archive.
  • Nitzbon, Jan; Westermann, Sebastian; Langer, Moritz; Martin, Leo Celestin Paul; Strauss, Jens; Laboor, Sebastian & Boike, Julia (2020). Fast response of cold ice-rich permafrost in northeast Siberia to a warming climate. Nature Communications.  ISSN 2041-1723.  11 . doi: 10.1038/s41467-020-15725-8 Full text in Research Archive.
  • Obu, Jaroslav; Westermann, Sebastian; Vieira, Gonçalo; Abramov, Andrey; Balks, Megan Ruby; Bartsch, Annett; Hrbáček, Filip; Kääb, Andreas & Ramos, Miguel (2020). Pan-Antarctic map of near-surface permafrost temperatures at 1 km2 scale. The Cryosphere.  ISSN 1994-0416.  14(2), s 497- 519 . doi: 10.5194/tc-14-497-2020 Full text in Research Archive. Show summary
  • Pastorello, Gilberto; Trotta, Carlo; Canfora, Eleonora; Chu, Housen; Christianson, Danielle; Cheah, You-Wei; Poindexter, Cristina; Chen, Jiquan; Elbashandy, Abdelrahman; Humphrey, Marty; Isaac, Peter; Polidori, Diego; Ribeca, Alessio; van Ingen, Catharine; Zhang, Leiming; Amiro, Brian; Ammann, Christof; Arain, M. Altaf; Ardö, Jonas; Arkebauer, Timothy; Arndt, Stefan K.; Arriga, Nicola; Aubinet, Marc; Aurela, Mika; Baldocchi, Dennis D.; Barr, Alan; Beamesderfer, Eric; Marchesini, Luca Belelli; Bergeron, Onil; Beringer, Jason; Bernhofer, Christian; Berveiller, Daniel; Billesbach, Dave; Black, Thomas Andrew; Blanken, Peter D.; Bohrer, Gil; Boike, Julia; Bolstad, Paul V.; Bonal, Damien; Bonnefond, Jean-Marc; Bowling, David R.; Bracho, Rosvel; Brodeur, Jason; Brümmer, Christian; Buchmann, Nina; Burban, Benoit; Burns, Sean P.; Buysse, Pauline; Cale, Peter; Cavagna, Mauro; Cellier, Pierre; Chen, Shiping; Chini, Isaac; Christensen, Torben R.; Cleverly, James; Collalti, Alessio; Consalvo, Claudia; Cook, Bruce D.; Cook, David; Coursolle, Carole; Cremonese, Edoardo; Curtis, Peter S.; D’Andrea, Ettore; da Rocha, Humberto; Dai, Xiaoqing; Davis, Kenneth J.; De Cinti, Bruno; de Grandcourt, Agnes; De Ligne, Anne; De Oliveira, Raimundo C.; Delpierre, Nicolas; Desai, Ankur R.; Di Bella, Carlos Marcelo; di Tommasi, Paul; Dolman, Han; Domingo, Francisco; Dong, Gang; Dore, Sabina; Duce, Pierpaolo; Dufrene, Eric; Dunn, Allison; Dušek, Jiří; Eamus, Derek; Eichelmann, Uwe; ElKhidir, Hatim Abdalla M.; Eugster, Werner; Ewenz, Cacilia M.; Ewers, Brent; Famulari, Daniela; Fares, Silvano; Feigenwinter, Iris; Feitz, Andrew; Fensholt, Rasmus; Filippa, Gianluca; Fischer, Marc; Frank, John; Galvagno, Marta; Gharun, Mana; Gianelle, Damiano; Gielen, Bert; Gioli, Beniamino; Gitelson, Anatoly; Goded, Ignacio; Goeckede, Mathias; Goldstein, Allen H.; Gough, Christopher M.; Goulden, Michael L.; Graf, Alexander; Griebel, Anne; Gruening, Carsten; Grünwald, Thomas; Hammerle, Albin; Han, Shijie; Han, Xingguo; Hansen, Birger Ulf; Hanson, Chad; Hatakka, Juha; He, Yongtao; Hehn, Markus; Heinesch, Bernard; Hinko-Najera, Nina; Hörtnagl, Nina; Hutley, Lindsay; Ibrom, Andreas; Ikawa, Hiroki; Jackowicz-Korczynski, Marcin; Janous, Dalibor; Jans, Wilma; Jassal, Rachhpal; Jiang, Shicheng; Kato, Tomomichi; Khomik, Myroslava; Klatt, Janina; Knohl, Alexander; Knox, Sarah; Kobayashi, Hideki; Koerber, Georgia; Kolle, Olaf; Kosugi, Yoshiko; Kotani, Ayumi; Kowalski, Andrew; Kruijt, Bart; Kurbatova, Julia; Kutsch, Werner Leo; Kwon, Hyojung; Launiainen, Samuli; Laurila, Tuomas; Law, Bev; Leuning, Ray; Li, Yingnian; Liddell, Michael; Limousin, Jean-Marc; Lion, Marryanna; Liska, Adam J.; Lohila, Annalea; López-Ballesteros, Ana; López-Blanco, Efrén; Loubet, Benjamin; Loustau, Denis; Lucas-Moffat, Antje; Lüers, Johannes; Ma, Siyan; Macfarlane, Craig; Magliulo, Vincenzo; Maier, Regine; Mammarella, Ivan; Manca, Giovanni; Marcolla, Barbara; Margolis, Hank A.; Marras, Serena; Massman, William; Mastepanov, Mikhail; Matamala, Roser; Matthes, Jaclyn Hatala; Mazzenga, Francesco; McCaughey, Harry; McHugh, Ian; McMillan, Andrew M. S.; Merbold, Lutz; Meyer, Wayne; Meyers, Tilden; Miller, Scott D.; Minerbi, Stefano; Moderow, Uta; Monson, Russell K.; Montagnani, Leonardo; Moore, Caitlin E.; Moors, Eddy; Moreaux, Virginie; Moureaux, Christine; Munger, J. William; Nakai, Taro; Neirynck, Johan; Nesic, Zoran; Nicolini, Giacomo; Noormets, Asko; Northwood, Matthew; Nosetto, Marcelo; Nouvellon, Yann; Novick, Kimberly; Oechel, Walter C.; Olesen, Jørgen Eivind; Ourcival, Jean-Marc; Papuga, Shirley A.; Parmentier, Frans-Jan W.; Paul-Limoges, Eugenie; Pavelka, Marian; Peichl, Matthias; Pendall, Elise; Phillips, Richard P.; Pilegaard, Kim; Pirk, Norbert; Posse, Gabriela; Powell, Thomas; Prasse, Heiko; Prober, Suzanne M.; Rambal, Serge; Rannik, Üllar; Raz-Yaseef, Naama; Reed, David; de Dios, Victor Resco; Restrepo-Coupe, Natalia; Reverter, Borja R.; Roland, Marilyn; Sabbatini, Simone; Sachs, Torsten; Saleska, Scott R.; Sánchez-Cañete, Enrique P.; Sanchez-Mejia, Zulia M.; Schmid, Hans Peter; Schmidt, Marius; Schneider, Karl; Schrader, Frederik; Schroder, Ivan; Scott, Russell L.; Sedlák, Pavel; Serrano-Ortíz, Penélope; Shao, Changliang; Shi, Peilin; Shironya, Ivan; Siebicke, Lukas; Šigut, Ladislav; Silberstein, Richard; Sirca, Costantino; Spano, Donatella; Steinbrecher, Rainer; Stevens, Robert M.; Sturtevant, Cove; Suyker, Andy; Tagesson, Torbern; Takanashi, Satoru; Tang, Yanhong; Tapper, Nigel; Thom, Jonathan; Tiedemann, Frank; Tomassucci, Michele; Tuovinen, Juha-Pekka; Urbanski, Shawn P.; Valentini, Riccardo; Van Der Molen, Michiel K.; van Gorsel, Eva; van Huissteden, Ko; Varlagin, Andrej; Verfaillie, Joseph; Vesala, Timo; Vincke, Caroline; Vitale, Domenico; Vygodskaya, Natalia; Walker, Jeffrey P.; Walter-Shea, Elizabeth; Wang, Huimin; Weber, Robin; Westermann, Sebastian; Wille, Christian; Wofsy, Steven C.; Wohlfahrt, Georg; Wolf, Sebastian; Woodgate, William; Li, Yuelin; Zampedri, Roberto; Zhang, Junhui; Zhou, Guoyi; Zona, Donatella; Agarwal, Deb; Biraud, Sébastien; Torn, Margaret S. & Papale, Dario (2020). The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data. Scientific Data.  ISSN 2052-4463.  7 . doi: 10.1038/s41597-020-0534-3 Full text in Research Archive.
  • Sayedi, Sayedeh Sara; Abbott, Benjamin W.; Thornton, Brett F.; Frederick, Jennifer M.; Vonk, Jorien E.; Overduin, Paul; Schädel, Christina; Schuur, Edward A.G.; Bourbonnais, Annie; Demidov, Nikita; Gavrilov, Anatoly; He, Shengping; Hugelius, Gustaf; Jakobsson, Martin; Jones, Miriam C.; Joung, DongJoo; Kraev, Gleb; Macdonald, Robie W.; McGuire, A. David; Mu, Cuicui; O'Regan, Matt; Schreiner, Kathryn M.; Stranne, Christian; Pizhankova, Elena; Vasiliev, Alexander; Westermann, Sebastian; Zarnetske, Jay P.; Zhang, Tingjun; Ghandehari, Mehran; Baeumler, Sarah; Brown, Brian C. & Frei, Rebecca J. (2020). Subsea permafrost carbon stocks and climate change sensitivity estimated by expert assessment. Environmental Research Letters.  ISSN 1748-9326.  15(12) . doi: 10.1088/1748-9326/abcc29 Full text in Research Archive.
  • Aas, Kjetil Schanke; Martin, Leo Celestin Paul; Nitzbon, Jan; Langer, Moritz; Boike, Julia; Lee, Hanna; Berntsen, Terje Koren & Westermann, Sebastian (2019). Thaw processes in ice-rich permafrost landscapes represented with laterally coupled tiles in a land surface model. The Cryosphere.  ISSN 1994-0416.  13(2), s 591- 609 . doi: 10.5194/tc-13-591-2019 Full text in Research Archive.
  • Angelopoulos, Michael; Westermann, Sebastian; Overduin, Paul; Faguet, Alexey; Olenchenko, Vladimir; Grosse, Guido & Grigoriev, Mikhail N (2019). Heat and Salt Flow in Subsea Permafrost Modeled with CryoGRID2. Journal of Geophysical Research (JGR): Earth Surface.  ISSN 2169-9003.  124, s 920- 937 . doi: 10.1029/2018JF004823 Full text in Research Archive.
  • Czekirda, Justyna; Westermann, Sebastian; Etzelmüller, Bernd & Jóhannesson, Tómas (2019). Transient Modelling of Permafrost Distribution in Iceland. Frontiers in Earth Science.  ISSN 2296-6463.  7(130) . doi: 10.3389/feart.2019.00130 Full text in Research Archive.
  • Fiddes, Joel; Aalstad, Kristoffer & Westermann, Sebastian (2019). Hyper-resolution ensemble-based snow reanalysis in mountain regions using clustering. Hydrology and Earth System Sciences.  ISSN 1027-5606.  23(11), s 4717- 4736 . doi: 10.5194/hess-23-4717-2019 Full text in Research Archive. Show summary
  • Karjalainen, Olli; Aalto, Juha; Luoto, Miska; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E.; Etzelmüller, Bernd & Hjort, Jan (2019). Data Descriptor: Circumpolar permafrost maps and geohazard indices for near-future infrastructure risk assessments. Scientific Data.  ISSN 2052-4463.  6 . doi: 10.1038/sdata.2019.37 Full text in Research Archive.
  • Magnin, Florence; Etzelmüller, Bernd; Westermann, Sebastian; Isaksen, Ketil; Hilger, Paula & Hermanns, Reginald (2019). Permafrost distribution in steep rock slopes in Norway: measurements, statistical modelling and implications for geomorphological processes. Earth Surface Dynamics.  ISSN 2196-6311.  7(4), s 1019- 1040 . doi: 10.5194/esurf-7-1019-2019 Full text in Research Archive.
  • Martin, Leo Celestin Paul; Nitzbon, Jan; Aas, Kjetil Schanke; Etzelmüller, Bernd; Kristiansen, Håvard & Westermann, Sebastian (2019). Stability Conditions of Peat Plateaus and Palsas in Northern Norway. Journal of Geophysical Research (JGR): Earth Surface.  ISSN 2169-9003.  124(3), s 705- 719 . doi: 10.1029/2018JF004945 Full text in Research Archive.
  • Myhra, Kristin Sæterdal; Westermann, Sebastian & Etzelmüller, Bernd (2019). Modelling conductive heat flow between steep rock walls and talus slopes–thermal processes and geomorphological implications. Frontiers in Earth Science.  ISSN 2296-6463.  7, s 1- 14 . doi: 10.3389/feart.2019.00192 Full text in Research Archive.
  • Nitzbon, Jan; Langer, Moritz; Westermann, Sebastian; Martin, Leo Celestin Paul; Aas, Kjetil Schanke & Boike, Julia (2019). Pathways of ice-wedge degradation in polygonal tundra under different hydrological conditions. The Cryosphere.  ISSN 1994-0416.  13(4), s 1089- 1123 . doi: 10.5194/tc-13-1089-2019 Full text in Research Archive.
  • Obu, Jaroslav; Westermann, Sebastian; Bartsch, Annett; Berdnikov, Nikolai M.; Christiansen, Hanne H; Dashtseren, Avirmed; Delaloye, Reynald; Elberling, Bo; Etzelmüller, Bernd; Kholodov, Alexander; Khomutov, Artem V.; Kääb, Andreas; Leibman, Marina O.; Lewkowicz, Antoni G.; Panda, Santosh K.; Romanovsky, Vladimir E.; Way, Robert G.; Westergaard-Nielsen, Andreas; Wu, Tonghua; Yamkhin, Jambaljav & Zou, Defu (2019). Northern Hemisphere permafrost map based on TTOP modelling for 2000–2016 at 1 km2 scale. Earth-Science Reviews.  ISSN 0012-8252.  193, s 299- 316 . doi: 10.1016/j.earscirev.2019.04.023 Full text in Research Archive.
  • Overduin, PP; Schneider von Deimling, T; Miesner, F; Grigoriev, Mikhail N; Ruppel, Carolyn; Vasiliev, Alexander; Lantuit, H; Juhls, Bennet & Westermann, Sebastian (2019). Submarine Permafrost Map in the Arctic Modeled Using 1-D Transient Heat Flux (SuPerMAP). Journal of Geophysical Research (JGR): Oceans.  ISSN 2169-9275.  124(6), s 3490- 3507 . doi: 10.1029/2018JC014675
  • Zwieback, Simon; Westermann, Sebastian; Langer, Moritz; Boike, Julia; Marsh, Philip & Berg, Aaron (2019). Improving Permafrost Modeling by Assimilating Remotely Sensed Soil Moisture. Water Resources Research.  ISSN 0043-1397.  55(3), s 1814- 1832 . doi: 10.1029/2018WR023247
  • Aalstad, Kristoffer; Westermann, Sebastian; Schuler, Thomas; Boike, Julia & Bertino, Laurent (2018). Ensemble-based assimilation of fractional snow-covered area satellite retrievals to estimate the snow distribution at Arctic sites. The Cryosphere.  ISSN 1994-0416.  12(1), s 247- 270 . doi: 10.5194/tc-12-247-2018 Full text in Research Archive. Show summary
  • Boike, Julia; Juszak, Inge; Lange, Stephan; Chadburn, Sarah; Burke, Eleanor; Paul Overduin, Pier; Roth, Kurt; Ippisch, Olaf; Bornemann, Niko; Stern, Lielle; Gouttevin, Isabelle; Hauber, Ernst & Westermann, Sebastian (2018). A 20-year record (1998-2017) of permafrost, active layer and meteorological conditions at a high Arctic permafrost research site (Bayelva, Spitsbergen). Earth System Science Data.  ISSN 1866-3508.  10(1), s 355- 390 . doi: 10.5194/essd-10-355-2018 Full text in Research Archive.
  • Hjort, Jan; Karjalainen, Olli; Aalto, Juha; Westermann, Sebastian; Romanovsky, Vladimir E; Nelson, Frederick E.; Etzelmüller, Bernd & Luoto, Miska (2018). Degrading permafrost puts Arctic infrastructure at risk by mid-century. Nature Communications.  ISSN 2041-1723.  9 . doi: 10.1038/s41467-018-07557-4 Full text in Research Archive.
  • Kjellman, Sofia E.; Axelsson, Pia E.; Etzelmüller, Bernd; Westermann, Sebastian & Sannel, A. Britta K. (2018). Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway. The Holocene.  ISSN 0959-6836.  28(12), s 1855- 1869 . doi: 10.1177/0959683618798126 Full text in Research Archive. Show summary
  • Strozzi, Tazio; Antonova, Sofia; Günther, Frank; Mätzler, Eva; Vieira, Gonçalo; Wegmüller, Urs; Westermann, Sebastian & Bartsch, Annett (2018). Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas. Remote Sensing.  ISSN 2072-4292.  10(9) . doi: 10.3390/rs10091360 Full text in Research Archive.
  • Westergaard-Nielsen, Andreas; Karami, Mojtaba; Hansen, Birger Ulf; Westermann, Sebastian & Elberling, Bo (2018). Contrasting temperature trends across the ice-free part of Greenland. Scientific Reports.  ISSN 2045-2322.  8 . doi: 10.1038/s41598-018-19992-w Full text in Research Archive.
  • Aas, Kjetil Schanke; Gisnås, Kjersti; Westermann, Sebastian & Berntsen, Terje Koren (2017). A Tiling Approach to Represent Subgrid Snow Variability in Coupled Land Surface–Atmosphere Models. Journal of Hydrometeorology.  ISSN 1525-755X.  18(1), s 49- 63 . doi: 10.1175/JHM-D-16-0026.1 Full text in Research Archive.
  • Borge, Amund Frogner; Westermann, Sebastian; Solheim, Ingvild & Etzelmüller, Bernd (2017). Strong degradation of palsas and peat plateaus in northern Norway during the last 60 years. The Cryosphere.  ISSN 1994-0416.  11(1), s 1- 16 . doi: 10.5194/tc-11-1-2017 Full text in Research Archive. Show summary
  • Chadburn, Sarah E.; Burke, Eleanor J.; Cox, Peter M.; Friedlingstein, Pierre; Hugelius, Gustaf & Westermann, Sebastian (2017). An observation-based constraint on permafrost loss as a function of global warming. Nature Climate Change.  ISSN 1758-678X.  7(5), s 340- 344 . doi: 10.1038/nclimate3262
  • Chadburn, Sarah E.; Krinner, Gerhard; Porada, Philipp; Bartsch, Annett; Beer, Christian; Belelli Marchesini, Luca; Boike, Julia; Ekici, Altug; Elberling, Bo; Friborg, Thomas; Hugelius, Gustaf; Johansson, Margareta; Kuhry, Peter; Kutzbach, Lars; Langer, Moritz; Lund, Magnus; Parmentier, Frans-Jan Willem; Peng, Shushi; van Huissteden, Ko; Wang, Tao; Westermann, Sebastian; Zhu, Dan & Burke, Eleanor J. (2017). Carbon stocks and fluxes in the high latitudes: Using site-level data to evaluate Earth system models. Biogeosciences.  ISSN 1726-4170.  14(22), s 5143- 5169 . doi: 10.5194/bg-14-5143-2017 Full text in Research Archive.
  • Gisnås, Kjersti; Etzelmüller, Bernd; Lussana, Cristian; Hjort, Jan; Sannel, Britta; Isaksen, Ketil; Westermann, Sebastian; Kuhry, Peter; Christiansen, Hanne H; Frampton, Andrew & Åkermann, Jonas (2017). Permafrost Map for Norway, Sweden and Finland. Permafrost and Periglacial Processes.  ISSN 1045-6740.  28(2), s 359- 378 . doi: 10.1002/ppp.1922
  • Kepski, Daniel; Luks, Bartek; Migala, K.; Wawrzyniak, Tomasz; Westermann, Sebastian & Wojtun, B. (2017). Terrestrial Remote Sensing of Snowmelt in a Diverse High-Arctic Tundra Environment Using Time-Lapse Imagery. Remote Sensing.  ISSN 2072-4292.  9(7) . doi: 10.3390/rs9070733 Full text in Research Archive.
  • Magnin, Florence; Westermann, Sebastian; Pogliotti, Paolo; Ravanel, Ludovico; Deline, Phillip & Malet, Eric (2017). Snow control on active layer thickness in steep alpine rock walls (Aiguille du Midi, 3842 m a.s.l., Mont Blanc massif). CATENA.  ISSN 0341-8162.  149(Part 2), s 648- 662 . doi: 10.1016/j.catena.2016.06.006
  • Myhra, Kristin Sæterdal; Westermann, Sebastian & Etzelmuller, Bernd (2017). Modelled Distribution and Temporal Evolution of Permafrost in Steep Rock Walls Along a Latitudinal Transect in Norway by CryoGrid 2D. Permafrost and Periglacial Processes.  ISSN 1045-6740.  28(1), s 172- 182 . doi: 10.1002/ppp.1884
  • Trofaier, Anna Maria; Westermann, Sebastian & Bartsch, Annett (2017). Progress in space-borne studies of permafrost for climate science: towards a multi-ECV approach. Remote Sensing of Environment.  ISSN 0034-4257.  203, s 55- 70 . doi: 10.1016/j.rse.2017.05.021 Full text in Research Archive.
  • Westermann, Sebastian; Peter, Maria; Langer, Moritz; Schwamborn, Georg; Schirrmeister, Lutz; Etzelmüller, Bernd & Boike, Julia (2017). Transient modeling of the ground thermal conditions using satellite data in the Lena River delta, Siberia. The Cryosphere.  ISSN 1994-0416.  11(3), s 1441- 1463 . doi: 10.5194/tc-11-1441-2017 Full text in Research Archive.
  • Antonova, Sonya; Duguay, Claude R.; Kääb, Andreas; Heim, Birgit; Langer, Moritz; Westermann, Sebastian & Boike, Julia (2016). Monitoring ice phenology and bedfast ice in lakes of the Lena River Delta using TerraSAR-X backscatter and coherence time series. Remote Sensing.  ISSN 2072-4292.  8(11) . doi: 10.3390/rs8110903
  • Bartsch, Annett; Grosse, Guido; Kääb, Andreas; Westermann, Sebastian; Strozzi, Tazio; Wiesmann, Andreas; Duguay, Claude; Seifert, Frank Martin; Obu, Jaroslav & Goler, Robert (2016). GlobPermafrost - How space-based earth observation supports understanding of permafrost. ESA SP.  ISSN 0379-6566.  SP-740
  • Gisnås, Kjersti; Westermann, Sebastian; Schuler, Thomas; Melvold, Kjetil & Etzelmüller, Bernd (2016). Small-scale variation of snow in a regional permafrost model. The Cryosphere.  ISSN 1994-0416.  10(3), s 1201- 1215 . doi: 10.5194/tc-10-1201-2016
  • Langer, Moritz; Westermann, Sebastian; Boike, Julia; Kirillin, Sergej; Grosse, Guido; Peng, Shushi & Krinner, Gerhard (2016). Rapid degradation of permafrost underneath waterbodies in tundra landscapes - Toward a representation of thermokarst in land surface models. Journal of Geophysical Research (JGR): Earth Surface.  ISSN 2169-9003.  121(12), s 2446- 2470 . doi: 10.1002/2016JF003956
  • Steiger, Céline; Etzelmüller, Bernd; Westermann, Sebastian & Myhra, Kristin Sæterdal (2016). Modelling the permafrost distribution in steep rock walls in Norway. Norsk Geologisk Tidsskrift.  ISSN 0029-196X.  96(4), s 1- 13 . doi: 10.17850/njg96-4-04
  • Wawrzyniak, Tomasz; Osuch, Marzena; Napiorkowski, Jaroslaw & Westermann, Sebastian (2016). Modelling of the thermal regime of permafrost during 1990-2014 in Hornsund, Svalbard. Polish Polar Research.  ISSN 0138-0338.  37(2), s 219- 242 . doi: 10.1515/popore-2016-0013
  • Westermann, Sebastian; Langer, Moritz; Boike, Julia; Heikenfeld, Max; Peter, Maria; Etzelmuller, Bernd & Krinner, Gerhard (2016). Simulating the thermal regime and thaw processes of ice-rich permafrost ground with the land-surface model CryoGrid 3. Geoscientific Model Development.  ISSN 1991-959X.  9(2), s 523- 546 . doi: 10.5194/gmd-9-523-2016
  • Aas, Kjetil Schanke; Berntsen, Terje Koren; Boike, Julia; Etzelmuller, Bernd; Kristjansson, Jon Egill; Maturilli, Marion; Schuler, Thomas; Stordal, Frode & Westermann, Sebastian (2015). A comparison between simulated and observed surface energy balance at the Svalbard Archipelago. Journal of Applied Meteorology and Climatology.  ISSN 1558-8424.  54(5), s 1102- 1119 . doi: 10.1175/JAMC-D-14-0080.1
  • Gisnås, Kjersti; Westermann, Sebastian; Schuler, Thomas; Melvold, Kjetil & Etzelmuller, Bernd (2015). Small-scale variation of snow in a regional permafrost model. The Cryosphere Discussions.  ISSN 1994-0432.  9, s 6661- 6696 . doi: 10.5194/tcd-9-6661-2015
  • Langer, M; Westermann, Sebastian; Walter Anthony, K.; Wischnewski, K. & Boike, J. (2015). Frozen ponds: Production and storage of methane during the Arctic winter in a lowland tundra landscape in northern Siberia, Lena River delta. Biogeosciences.  ISSN 1726-4170.  12(4), s 977- 990 . doi: 10.5194/bg-12-977-2015
  • Westermann, Sebastian; Elberling, B.; Højlund Pedersen, S.; Stendel, M.; Hansen, B. U. & Liston, G.E. (2015). Future permafrost conditions along environmental gradients in Zackenberg, Greenland. The Cryosphere.  ISSN 1994-0416.  9(2), s 719- 735 . doi: 10.5194/tc-9-719-2015
  • Westermann, Sebastian; Østby, Torbjørn; Gisnås, Kjersti; Schuler, Thomas & Etzelmuller, Bernd (2015). A ground temperature map of the North Atlantic permafrost region based on remote sensing and reanalysis data. The Cryosphere.  ISSN 1994-0416.  9(3), s 1303- 1319 . doi: 10.5194/tc-9-1303-2015
  • Gisnås, Kjersti; Westermann, Sebastian; Schuler, Thomas; Litherland, Tobias; Isaksen, Ketil; Boike, Julia & Etzelmuller, Bernd (2014). A statistical approach to represent small-scale variability of permafrost temperatures due to snow cover. The Cryosphere Discussions.  ISSN 1994-0432.  8, s 509- 536 . doi: 10.5194/tcd-8-509-2014
  • Gisnås, Kjersti; Westermann, Sebastian; Schuler, Thomas; Litherland, Tobias; Isaksen, Ketil; Boike, Julia & Etzelmuller, Bernd (2014). A statistical approach to represent small-scale variability of permafrost temperatures due to snow cover. The Cryosphere.  ISSN 1994-0416.  8, s 2063- 2074 . doi: 10.5194/tc-8-2063-2014
  • Jore, Solveig; Vanwambeke, Sophie O; Viljugrein, Hildegunn; Isaksen, Ketil; Kristoffersen, Anja Bråthen; Woldehiwet, Zerai; Johansen, Bernt; Brun, Edgar; Brun-Hansen, Hege C; Westermann, Sebastian; Larsen, Inger Lise; Ytrehus, Bjørnar & Hofshagen, Merete (2014). Climate and environmental change drives Ixodes ricinus geographical expansion at the northern range margin. Parasites & Vectors.  ISSN 1756-3305.  7(1) . doi: 10.1186/1756-3305-7-11 Full text in Research Archive.
  • Eberhardt, A.; Scholz, L.; Westermann, Sebastian; Sachs, T; Langer, M; Wöllenstein, J. & Palzer, S. (2014). Low cost, mobile sensor system for measurement of carbon dioxide in permafrost areas. Procedia Engineering.  ISSN 1877-7058.  87, s 1318- 1321 . doi: 10.1016/j.proeng.2014.11.690
  • Hipp, Tobias Florian; Etzelmuller, Bernd & Westermann, Sebastian (2014). Permafrost in Alpine Rock Faces from Jotunheimen and Hurrungane, Southern Norway. Permafrost and Periglacial Processes.  ISSN 1045-6740.  25(1), s 1- 13 . doi: 10.1002/ppp.1799
  • Langer, Moritz; Westermann, Sebastian; Walter-Anthony, Katey; Wischniewski, Karoline & Boike, Julia (2014). Frozen ponds – production and storage of methane during the Arctic winter. Biogeosciences Discussions.  ISSN 1810-6277.  11, s 11061- 11094 . doi: 10.5194/bgd-11-11061-2014
  • Lüers, Johannes; Westermann, Sebastian; Piel, Konstanze & Boike, Julia (2014). Annual CO2 budget and seasonal CO2 exchange signals at a High Arctic permafrost site on Spitsbergen, Svalbard archipelago. Biogeosciences Discussions.  ISSN 1810-6277.  11, s 1535-1559 . doi: 10.5194/bgd-11-1535-2014
  • Lüers, Johannes; Westermann, Sebastian; Piel, Konstanze & Boike, Julia (2014). Annual CO<sub>2</sub> budget and seasonal CO<sub>2</sub> exchange signals at a high Arctic permafrost site on Spitsbergen, Svalbard archipelago. Biogeosciences.  ISSN 1726-4170.  11(22), s 6307- 6322 . doi: 10.5194/bg-11-6307-2014

View all works in Cristin

  • Aalstad, Kristoffer & Westermann, Sebastian (2020). ACS_Bayelva_class: 302 high-resolution snow cover maps covering the 2012-2017 snowmelt seasons in the Bayelva catchment (Svalbard, Norway). Show summary
  • Aalstad, Kristoffer; Westermann, Sebastian; Fiddes, Joel; Karsten, Logan; McCreight, James & Bertino, Laurent (2020). Testing ensemble-based snow reanalysis in the Lakes basin using the ASO.
  • Aalstad, Kristoffer; Westermann, Sebastian; Fiddes, Joel; McCreight, James & Bertino, Laurent (2020). Retrieving, validating, and assimilating fractional snow-covered area from emerging optical satellites for snow reanalysis. Show summary
  • Aalstad, Kristoffer; Westermann, Sebastian; Pirk, Norbert; Fiddes, Joel; Karsten, Logan; McCreight, James; Alonso-Gonzalez, Esteban & Bertino, Laurent (2020). Constraining land surface models with emerging observations.
  • Althuizen, Inge; Christiansen, Casper Tai; Michelsen, Anders; Pirk, Norbert; Risk, David; Westermann, Sebastian & Lee, Hanna (2020). Annual ecosystem carbon budgets across an abrupt permafrost thaw gradient in Northern Norway.
  • Althuizen, Inge; Christiansen, Casper Tai; Michelsen, Anders; Pirk, Norbert; Risk, David; Westermann, Sebastian & Lee, Hanna (2020). Annual ecosystem carbon budgets across an abrupt permafrost thaw gradient in Northern Norway.
  • Bryn, Anders; Dalen, Thea Grobstok; Finne, Eirik Aasmo; Heiberg, Hanne; Nilsen, Irene Brox; Parmentier, Frans-Jan W.; Snekkenes, Christine; Stordal, Frode; Aas, Kjetil Schanke; Althuizen, Inge; Berntsen, Terje Koren; Bjerke, Jarle W.; Bright, Ryan M.; Dyrrdal, Anita Verpe; Geange, Sonya Rita; Pirk, Norbert; Puschmann, Oskar; Tang, Hui; Torma, Michal; Vollsnes, Ane Victoria; Westermann, Sebastian & Yilmaz, Yeliz (2020). Natur i endring.
  • Christiansen, Casper Tai; Michelsen, Anders; Pirk, Norbert; Risk, David; Westermann, Sebastian & Lee, Hanna (2020). Annual ecosystem carbon budgets across an abrupt permafrost thaw gradient in Northern Norway.
  • Christiansen, Casper Tai; Michelsen, Anders; Westermann, Sebastian; Pirk, Norbert; Risk, David & Lee, Hanna (2020). Annual ecosystem carbon budgets across an abrupt permafrost thaw gradient in Northern Norway.
  • Aalstad, Kristoffer; Westermann, Sebastian & Bertino, Laurent (2019). Ensemble-based retrospective analysis of the seasonal snowpack. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 2186. Show summary
  • Aalstad, Kristoffer; Westermann, Sebastian; Fiddes, Joel & Bertino, Laurent (2019). Retrieving the depletion of snow-covered area from multiple optical satellite sensors with applications for SWE reanalysis.
  • Bilt, Willem van der; Bakke, Jostein; Smedsrud, Lars H.; Sund, Monica; Schuler, Thomas; Westermann, Sebastian; Wong, Wai Kwok; Sandven, Stein; Simpson, Matthew James Ross; Skogen, Morten D.; Pavlova, O.; Ravndal, Ole; Risebrobakken, Bjørg; Saloranta, Tuomo; Mezghani, Abdelkader; Nilsen, Jan Even Øie; Nilsen, Irene Brox; Kierulf, Halfdan; Kohler, Jack; Melvold, Kjetil; Gjelten, Herdis Motrøen; Gundersen, Jeanette; Jaedicke, Christian; Dobler, Andreas; Engeset, Rune; Frauenfelder, Regula; Gerland, Sebastian; Christiansen, Hanne H; Børsheim, Knut Yngve; Breivik, Øyvind; Breili, Kristian; Borstad, Christopher Paul; Benestad, Rasmus; Isaksen, Ketil; Adakudlu, Muralidhar; Førland, Eirik; Hisdal, Hege; Lutz, Julia; Mayer, Stephanie; Hanssen-Bauer, Inger; Sandø, Anne Britt; Andersen, Jess; Nilsen, Frank; Sorteberg, Asgeir; Li, Hong; Bogen, Jim & Beldring, Stein (2019). Climate in Svalbard 2100. Norwegian Centre for Climate Services Reports. 1/2019. Full text in Research Archive.
  • Cai, Lei; Lee, Hanna; Westermann, Sebastian & Aas, Kjetil Schanke (2019). Development of the subgrid excess ground ice framework in the Community Land Model.
  • Etzelmüller, Bernd; Patton, Henry; Schomacker, Anders; Hubbard, Alun Lloyd; Czekirda, Justyna & Westermann, Sebastian (2019). Permafrost dynamics in Iceland between 18 ka BP and today – model results and geomorphological implications. Show summary
  • Aalstad, Kristoffer; Westermann, Sebastian; Bertino, Laurent; Schuler, Thomas; Boike, Julia & Karsten, Logan (2018). Towards high-resolution Bayesian snow reconstruction in permafrost regions.
  • Aalstad, Kristoffer; Westermann, Sebastian; Karsten, Logan; Fiddes, Joel & Bertino, Laurent (2018). Snow history matching in mountainous terrain.
  • Aalstad, Kristoffer; Westermann, Sebastian; Karsten, Logan; Gutmann, Ethan; McCreight, James; Fiddes, Joel & Bertino, Laurent (2018). Ensemble-based reanalysis of the seasonal montane snowpack: Lessons from the ASO.
  • Christiansen, Casper Tai; Westermann, Sebastian; Risk, David & Lee, Hanna (2018). Advancing permafrost carbon climate feedback – improvements and evaluations of the Norwegian Earth System Model with observations.
  • Lee, Hanna; Ekici, Altug; Robson, Benjamin Aubrey; Fan, Yuanchao; Westermann, Sebastian & Langer, Moritz (2018). Vulnerability of permafrost thaw and the emerging risks for the Arctic infrastructure.
  • Aalstad, Kristoffer; Westermann, Sebastian; Schuler, Thomas; Boike, Julia & Bertino, Laurent (2017). Ensemble-based subgrid snow data assimilation.
  • Aalstad, Kristoffer; Westermann, Sebastian; Schuler, Thomas; Boike, Julia & Bertino, Laurent (2017). Towards High-Resolution SWE Mapping in Permafrost Regions.
  • Aalstad, Kristoffer; Westermann, Sebastian; Schuler, Thomas; Boike, Julia & Bertino, Laurent (2017). Towards High-Resolution SWE Mapping in Permafrost Regions.
  • Aas, Kjetil Schanke; Westermann, Sebastian; Martin, Leo Celestin Paul & Berntsen, Terje Koren (2017). Degrading Palsa Mires in Northern Norway Simulated with a Regional Climate Model with a Subgrid Snow Scheme.
  • Lee, Hanna; Christiansen, Casper Tai & Westermann, Sebastian (2017). Advancing permafrost carbon climate feedback – improvements and evaluations of the Norwegian Earth System Model with observations (FEEDBACK).
  • Aalstad, Kristoffer; Bertino, Laurent & Westermann, Sebastian (2016). An ensemble-based subgrid snow data assimilation framework.
  • Aalstad, Kristoffer; Westermann, Sebastian & Bertino, Laurent (2016). An ensemble-based snow data assimilation framework.
  • Aalstad, Kristoffer; Westermann, Sebastian & Bertino, Laurent (2016). An ensemble-based subgrid snow data assimilation framework.
  • Aalstad, Kristoffer; Westermann, Sebastian & Bertino, Laurent (2016). An ensemble-based subgrid snow data assimilation framework applied to the southern Swiss alps.
  • Aalstad, Kristoffer; Westermann, Sebastian; Boike, Julia; Bertino, Laurent & Aas, Kjetil Schanke (2016). An ensemble-based snow data assimilation framework with applications to permafrost modeling.
  • Hilger, Paula; Hermanns, Reginald; Etzelmüller, Bernd; Westermann, Sebastian; Krautblatter, Michael; Gosse, John C.; Magnin, Florence & Jacobs, Benjamin (2016). Evaluation of rock-slope failures in steep permafrost slopes in Norway - first insights in the geological history of the Mannen unstable rock slope in Møre og Romsdal.
  • Myhra, Kristin Sæterdal; Etzelmuller, Bernd & Westermann, Sebastian (2016). The Influence of Steep Rock Walls on the Thermal Regime of Talus Slopes.
  • Nuth, Christopher; Kääb, Andreas; Westermann, Sebastian & Winsvold, Solveig Havstad (2016). Climate Change from Global Monitoring of Glaciers and Permafrost.
  • Obu, Jaroslav; Westermann, Sebastian; Kääb, Andreas & Bartsch, Annett (2016). Mapping the Thermal State of Permafrost Through Modelling and Remote Sensing in ESA GlobPermafrost Project.
  • Schuler, Thomas; Aalstad, Kristoffer; Aas, Kjetil Schanke; Burkhart, John; Dunse, Thorben; Filhol, Simon; Hulth, John; Østby, Torbjørn Ims & Westermann, Sebastian (2016). Towards real-time snow products for Svalbard.
  • Westermann, Sebastian; Langer, Moritz; Østby, Torbjørn Ims; Peter, Maria; Boike, Julia; Gisnås, Kjersti; Aalstad, Kristoffer; Schuler, Thomas; Etzelmüller, Bernd; Jaroslav, Obu; Georg, Schwamborn & Lutz, Schirrmeister (2016). Mapping the thermal state of permafrost through modeling and remote sensing.
  • Gisnås, Kjersti; Westermann, Sebastian; Etzelmuller, Bernd; Schuler, Thomas; Isaksen, Ketil; Litherland, Tobias & Boike, Julia (2014). A probabilistic approach to represent small-scale variability of permafrost temperatures due to snow cover.
  • Aas, Kjetil Schanke; Berntsen, Terje Koren; Boike, Julia; Etzelmuller, Bernd; Gisnås, Kjersti & Westermann, Sebastian (2014). Simulating the surface energy balance on Svalbard with the Weather Research and Forecasting model.
  • Antonova, Sonya; Langer, Moritz; Kääb, Andreas; Heim, Birgit; Boike, Julia; Bartsch, Annett & Westermann, Sebastian (2014). Spatial and temporal variability of the interferometric coherence based on TerraSAR-X imagery of the central Lena River Delta.
  • Gisnås, Kjersti; Westermann, Sebastian; Schuler, Thomas & Etzelmuller, Bernd (2014). Towards Inclusion of Sub-grid Variability of Snow in Distributed Permafrost Models.

View all works in Cristin

Published Dec. 10, 2013 7:55 PM - Last modified Jan. 17, 2020 11:52 AM