Lars H. Smedsrud


Professor, Polar Oceanography


Research groups


I have a wide experience in polar oceanography from Arctic and Antarctic waters. I am leading a network for polar researchers at the University in Bergen and I have been a professor II at the University Centre in Svalbard (UNIS) since 2014. Of relevant previous experience I would like to menttion that I have a member of the scientic advisory board in the Arctic Ice Project (2020-2023), the US-Norway Arctic Fulbright Chair (2019-2020), part of the the Scientific Steering Group in CliC (2015-2021, Climate and the Cryosphere, World Climate Research Programme) and a coordinator in Arctic ECRA (2014-2021, European Climate Research Alliance). For 2024 - 2026 I am a Norwegian participant in the 'Fulbright Arctic Initiative'.

I am now a "Polar Expert" in an EU project that coordinates European Polar research, member of the 'Northern Ocean Panel' and active in producing a 'roadmap' on how we can help restoring Arctic sea ice (Ocean Visions).

In March 2000 I accomplised my PhD on frazil ice formation and sediment entrainment in polar waters. I have worked with projects related to sea ice formation in the Arctic and melting of ice-shelves in Antarctica since then. I have extensive field experience, have participated in several international laboratory experiments, and worked with a number of different numerical models. Modelling activity includes circulation in the Arctic Ocean and the Nordic Seas, coupled column modelling of the Arctic Ocean, sub ice shelf circulation under the Fimbul Ice Shelf in Antarctica, polynya dynamics on Svalbard, and export and cover of Arctic sea ice in Global Earth System Models. New activity now also cover Disko Bay on Greenland. 

Lars H. Smedsrud

Research Areas:

  • Arctic Ocean Modelling 
  • Barents Sea; Atlantisk Inflow, surface fluxes and sea ice cover
  • Sea Ice formation in fjords on Svalbard
  • Water masses of the Southern Ocean and the Weddell Sea, circulation and deep water formation
  • Melting of ice shelves, circulation in sub-ice cavities, Fimbul and Filchner-Ronne ice shelves
  • Incorporation of sedimentents into sea ice
  • Frazil ice crystals, grease ice, pancake ice - freezing processes under high turbulence



    I hold that communicating our scientific understanding is the most important thing we do.

    This regards both the students and the general public. Below you find the list of presentations and posters.

    Media pieces in national and international press are found on the Norwegian page. There are some other pieces of outreach too, and the number just reached 100.

    List of talks in scientific fora: 

    1. 2023 Tromsø, Norway, November 7, Nansen Legacy Symposium: How Atlantic Water Makes Arctic Sea Ice Retreat

    2. 2022 Nuuk, Greenland, May 4, Greenland Climate Research Centre: Arctic Sea Ice and Atlantic Water; Variability and Mechanisms

    3. 2021 Online, November 19, IOP Environmental Research, Invited talk: Nordic Seas Heat Loss, Atlantic Inflow and Arctic Sea Ice Cover over the last century.

    4. 2021 Online, Pico session, EGU, Arctic climate change, Highlight: Nordic Seas Heat Loss, Atlantic Inflow, and Arctic Sea Ice cover over the last century.

    5. 2021 Online, March 24. Arctic Science Summit Week, Climate Change and the Arctic Ocean: Nordic Cooling, Atlantic Inflow, and Arctic Sea Ice cover over the last century

    6. 2021 Online, February 22. Invited lecture for IARCP (Interagency Arctic Research Policy Committee): Fram Strait Sea Ice Export - Why does it matter?

    7. 2020 Online, April 22. Invited lecture to Los Alamos National Laboratory: Arctic Sea Ice and Atlantic Water; Variability and Mechanisms

    8. 2020 San Diego, February 17. Ocean Sciences Meeting: How Atlantic heat makes Arctic sea ice retreat.

    9. 2020 San Diego, February 17. Ocean Science Meeting: Nordic and Barents Seas Cooling – Where Does the Heat Go? 

    10. 2019 San Fransisco, December 13, AGU Fall Meeting - Town Hall on Climate Restoration Solutions, invited talk: Arctic Sea Ice Loss.

    11. 2019 San Diego, Scripps Ice-Ocean Workshop, December 5-6: Workshop organizer and leader of discussions and summaries.

    12. 2019 Boston, MIT, November 18,  Arctic Dynamics Workshop, How Atlantic heat makes Arctic sea ice retreat

    13. 2019 San Diego, UCSD, USA, September 12, Scripps - Polar Seminar,  Arctic Sea Ice and Atlantic Water; Variability and Mechanisms

    14. 2019 Brussels, Belgium, February 27, ECRA General Assembly, Arctic Climate Change – Probably the most visible consequence of Global Warming

    15. 2018 Bergen, Norway, November 21, Nansen Legacy, Annual meeting: How winter sea ice change comes to the Arctic through the gateway of the Barents Sea – present and future

    16. 2018 Bergen, Norway, October 25, Forum for Arctic Ocean Modeling and Observational Synthesis (FAMOS): Atlantic water heat transport variability in the 20th century Arctic Ocean

    17. 2018 Stockholm, Sweden, October 18, Arctic Ocean Workshop, A simple physical model of the Atlantic inflow in the Nansen Basin

    18. 2018 Fairbanks, Alaska, USA. Wednesday August 8. Summer School: Natural Resource Management in a Rapidly Changing Arctic: Arctic sea ice loss – causes and consequences

    19. 2018 Davos, Switzerland. Tuesday June 19. Polar 2018 Conference, Polar Ocean dynamics: Sea Ice Variability and Predictability in the Nansen Basin

    20. 2017 Woods Hole, USA. October 26, Forum for Arctic Ocean Modeling and Observational Synthesis (FAMOS): Simulating variability in the Fram Strait sea ice export

    21. 2017 Bergen, Norway. Monday October 2, Geophysical Institute 100 years - Atmosphere, Ocean and Siciety in Motion: 100 years of Physical Oceanography in Bergen

    22. 2017 EGU 2017, Vienna, Austria. 25. April, Invited talk in CL2.05 Arctic climate change: Arctic sea ice loss – two distinct spatial and seasonal patterns related to the ocean state

    23. 2017 Brüssels, Belgium - European Climate Research Alliance (ECRA) General Assembly. Tuesday March 7. Arctic Climate stability and change.

    24. 2017 Wellington, New Zealand, IGS - Climate & Cryosphere, 16. Feruary:  Atlantic water influence on Arctic sea ice: new observations of hydrography and vertical mixing north of Svalbard.

    25. 2016 Vienna, Austria, EGU, Wednesday 20. April, State of the Cryosphere: Observations and Modelling: Fram Strait Spring Ice Export and September Arctic Sea Ice

    26. 2016 Helsingør, Denmark, Ice2Ice annual meeting, Tuesday April 5.  Fram Strait Ice Export and the Arctic September sea ice extent the last 80 years.

    27. 2016 Brüssels, Belgium, ECRA Workshop, Friday February 26.ECRA Workshop : Overview of ongoing Arctic Oceanography.

    28. 2016 Norwegian Research Council, Oslo, Norway. Polar dialog meeting: Polar Reseacrh in Bergen.

    29. 2015 Hyannis, Cape Cod, Tuesday November 3. USA, Forum for Arctic Modelling and Observation Synthesis School (FAMOS), The Barents Sea ocean cooler

    30. 2015 Hyannis, Cape Cod, Thursday November 5. USA, FAMOS, Consequences of Future Increased Arctic Runoff on Stratification, Circulation, and Sea Ice Cover

    31. 2015 Brüssels, Belgium, March 26, European Climate Research Alliance General Assembly 2015: What are the local impacts of Arctic climate change?

    32. 2015 Tromsø, Norway, Thursday 22. January, Arctic Frontiers Conference, Arctic-Atlantic climate change session,  Loss of Arctic and Barents Sea ice in relation to Atlantic influence

    33. 2014 Bergen,Norway, June 27, Challenges of the Changing Arctic: Continental Shelf, Navigation and Fisheries, Causes of Arctic Sea Ice Loss and a future outlook

    34. 2014 Hobart, March 13, International Glaciological Society, Symposium on Sea Ice in a Changing Environment, Grease and pancake ice growth in large scale sea-ice models

    35. 2013 Norrköping, Sweden, November 14, European Climate Research Alliance Arctic workshop, Arctic Sea Ice decline and ice export in CMIP5

    36. 2013 Brussels, Belgium, April 24,  ECRA Science Briefing for Policy-Makers, European Parliament, Arctic climate change: Local impacts of Global significance

    37. 2013 Tromsø, February 19, Climate and the Cryosphere, Norwegian Sea Ice Workshop, Sea Ice and Ocean work in Bergen - suggestions for future cooperation

    38. 2012 Bergen, Norway, September 4, Climate change in high latitudes, The role of the Barents Sea in the Arctic climate system

    39. 2012 Seville, Spain, June 1, Wokshop on impacts on Europe of crossing climate tipping points, Arctic Sea Ice melting

    40. 2012 European Climate Research Alliance, Brussel, Belgium, May 15, Arctic research at the Bjerknes Centre - Observations and modelling

    41. 2012 European Geophysical Union, Wienna, Austria, April 24, Arctic sea ice loss - a tale of two seasons,

    42. 2011 Bert Bolin Climate Centre: Arctic Climate Summer School, Abisko, Sweden, August 3, Sea ice 1&2 - thickness, melting, polynas, and feedbacks

    43. 2011 IUGG Melbourne, Ocean Mixing - IAPSO, June 29, Super cooling driven by mixing and frontal advection below fast ice in an Arctic Coastal Polynya

    44. 2011 IUGG Melbourne, Future state of the Arctic - IAPSO, July 1, Recent wind driven high export in the Fram Strait contributes to Arctic sea ice decline

    45. 2011 IUGG Melbourne, Ice Shelves and Glacier Toungues - IACS, July 2, Melting of the Fimbul Ice Shelf - a difficult case for Ice-Ocean Models

    46. 2010 IPY Oslo Science Conference, Norway, Friday 11 June, Ocean properties below the Fimbul Ice Shelf

    47. 2010 IPY Oslo Science Conference, Norway, Friday 11 June, Fram Strait Sea Ice Area Export: 1957 - 2009

    48. 2010 IPY Oslo Science Conference, Norway, Tuesday 8 June, Cold Deep Water formation on shallow banks in the Barents Sea

    49. 2010 SASSI meeting, Norwegian Research Council, 7 June, Fimbul Ice Shelf  Ocean properties and exchange towards the north

    50. 2010 IGS - International Symposium on Sea Ice Tromsø, Norway, 2 June, Grease ice thickness parameterisation

    51. 2010 Arctic Science Summit Week, Bergen, Norway, March 2, Barents Sea-Heat - Oceanic Advection and Surface Fluxes

    52. 2009, iAnZone Biennial Meeting and Sassi workshop, Montreal, July 25, Fimbil Ice Shelf  - top to bottom

    53. 2009, MOCA meeting, Montreal, July 23. Grease ice in ocean models - why it should be done and how to do it

    54. 2009, Arctic System Model workshop, Montreal, July 16. A few first Arctic sea ice results from the Norwegian Earth System Model 

    55. 2009, University of Washington, Polar Science Centre, Seattle, July 9. Barents Sea Ocean Transport - a 1D approach

    56. 2009, Arctic Science Summit Week, Bergen, Norway, March 26. Barents Sea Heat - Oceanic Advection and Surface Fluxes

    57. 2008, Forum For Research Into Ice Shelf Processes, Loose Hall Derbyshire, September 20, Structure and Variability of the Filchner Overflow Plume

    58. 2008, Woods Hole Oceanographic Institution, March 18, Frazil & Grease Ice in Polynyas on Svalbard

    59. 2008, Orlando, Ocean Sciences meeting, March 3, Oceanic Heat transport and Arctic Sea Ice Cover

    60. 2007, Vienna, European Geosciences Union, April 17, Observations of in-situ supercooled water in an Arctic polynya

    61. 2007, Bergen, Polar Dynamics, 30 August, Supercooling Under Fast Ice in Freemansundet, Svalbard

    62. 2006, Bornø Scandinavian Geophysical Fluid Dynamics workshop, August, Numerical results below Fimbulisen

    63. 2005, Dunedin, International Glaciological Society Symposium on Sea Ice, Fine scale sea ice modelling of the Storfjorden polynya

    64. 2004, Helgoland, FRISP workshop, Ocean processes below Fimbulisen - modelling results

    65. 2003, Hobart, Antarctic CRC, Sub ice shelf modelling and warming deep water in the Weddell sector

    66. 2002, Cambridge, DAMPT, Growth of frazil ice crystals in sea water - laboratory and numerical experiments.

    67. 2002, Nice, European Geophysical Society, Frazil ice formation in an ice shelf water plume.

    68. 2002, Norwich, University of East Anglia, Frazil ice formation and ice shelf water.

    69. 2002, London, University Collage of London, CPOM, Frazil ice formation in ice shelf water below the Filchner Ronne ice shelf

    70. 2001, Cambridge, British Antarctic Survey, Frazil ice formation in Arctic and Antarctic waters

    71. 2000, Nice, European Geophysical Society, Formation of turbid ice during the autumn freeze up in the Kara Sea

    72. 1998, Hobart, CSIRO, Sediment entrainment into sea ice in the Arctic: Ideas, experiments and calculations.

    73. 1998, Potsdam, N.Y. IAHR - International Symposium on ice, Sediment entrainment into sea ice in Arctic Leads: An experimental approach.

    74. 1998, Tromsø, Norwegian Polar Institute, Modelling sediments and frazil ice in shallow Arctic Seas.

    75. 1997, St. Petersburg, Arctic and Antarctic Research Institute, Frazil ice formation and incorporation of sediments into sea ice in the Kara Sea.


    Talks to the general public, administration and politicians;

    1. 2023 Bergen, Norway, teachers day, January 27: Arktisk sjøis, Atlantisk innstrømming og avkjøling i de Nordiske hav de siste 100 år
    2. 2015 Oslo, Norway, May 27, The EU and the Arctic – European Commission , Stakeholder workshop on EU's Arctic policy: Local Impacts of Arctic Climate Change – An Overview
    3. 2014, UNIS, House of Lords - Arctic Commitee, Longyearbyen, Svalbard, September 18, Causes of Arctic Sea Ice  Loss and a Future Outlook, 
    4. 2014, Bergen, Norway, May 10, Framferden, Jordsystemmodeller og andre polarskrøner, Alumnidagene UiB 2014
    5. 2013, Brussels, Belgium, European Parliament, April 24, Arctic climate change: Local impacts of Global significance, ECRA Science Briefing for Policy-Makers
    6. 2011, Bergen, Norway, November 11, Klimaendringer: Globalt, lokalt, Antarktis og Arktis, Lærerkurs, Hordaland Fylkeskommune.
    7. 2010, Oslo, Norway, 16-17 February, Svalbard Science Forum 'Research access to Eastern areas in Svalbard' - Why is Storfjorden so important ?
    8. 2009, Bergen, Norway, April 15. Miljøutfordringen, Fra ord til handling - Tiltaksplan ytre miljø og miljøledelse, Klimautfordinger og konsekvenser
    9. 2009, Bergen, Norway, April 16.  Miljøseminar, "Kick the CO2 Habit", Transport – klimakonsekvenser og utfordringer
    10. 2009, Bergen Science Centre, Norway, April 26, "Verdens minste forskningsfartøy ? - to kalde Svalbard historier"


    An almost complete list of posters I have made or contributed to as well;

    1. 2024, A year of observations in Disko Bay, Greenland, Latuta et al. Arctic Frontiers, January. 
    2. 2020, Arctic response to Greenland Sea wind anomalies in a suite of model simulations, Muilwijk et al. AGU OSM, January.
    3. 2019, Sensitivity of submarine melting on 79N Glacier, Anhaus et al. West Antarctic Ice Sheet Workshop, Julian, USA, October.
    4. 2018, Sensitivity of submarine melting on North East Greenland towards ocean forcing, Anhaus et al. FAMOS Bergen, October.
    5. 2018, Arctic - Atlantic Climate Reponse Functions, Muilwijk et al. 2018, FAMOS Bergen, October 
    6. 2017, Towards Quantifying Submarine Melt Rates below 79NG Ice Tongue using a 1D ISW model, FRISP, Bergen, Norway, June,  P. Anhaus, L. H. Smedsrud, M. Årthun, P. A. Dodd, F. Straneo.
    7. 2017, Southern Ocean ventilation and bottom water formation driven by Weddell Sea polynyas, EGU, Wienna, Austria, J. Rheinlænder, L. H. Smedsrud and K. H. Nisancioglu
    8. 2016, Arctic sea ice change from 1850 to present, FAMOS, Boston, USA, Ingrid H. Onarheim, T. Eldevik, L. H. Smedsrud, and J. Stroeve
    9. 2016, Bottom melting of ArcticSeaIce in theNansen Basindueto AtlanticWater influence, FAMOS, Boston, USA, M. Muilwijk, L.H. Smedsrud,, A. Meyer, and I. H. Onarheim.
    10. 2015, Consequences of Future Increased Arctic Runoff on Stratification and Circulation, CLIVAR-ICTP Decadal Climate Variability abd Predictability, 16-20 November, Italy, Trieste.
    11. 2015, Oceanographic Observations collected during the Norwegian Young Sea Ice Cruise, FAMOS, Hyannis, Cape Cod, Wednesday November 4. USA.
    12. 2015, Fram Strait spring ice export and the September Arctic sea ice cover, Arctic Frontiers, January 21-23, Tromsø, Norway.
    13. 2014, Atlantic inflow and sea ice in the Barents Sea and Arctic Ocean, 3rd annual FAMOS Workshop, Woods Hole Oceanographic Institution October 21-24, USA.
    14. 2014, On modeling a variable lead closing parameter: dowe need to explicitly simulate grease ice in climate models? FAMOS, Woods Hole, October 21-24, USA.
    15. 2012, Quantifying the influence of Atlantic heat on Barents Sea ice variability and retreat, M. Årthun et al, European Geophysocal Union, Vienna, Austria, April 27
    16. 2012, Is Fram Strait ice export a driver for Arctic sea ice decline? F. Geyer et al, European Geophysocal Union, Vienna, Austria, April 23
    17. 2012, Arctic sea ice decline and ice export in the CMIP5 historical simulations, H. Langehaug et al, Nanzen-Zhu Summer School, Beijing, China, June
    18. 2012, Coupled Air-Sea-Ice Modelling of the Svalbard Region, P. W. Budgell et al, Ocean Science, Salt Lake City, February 22
    19. 2011,Deep water formation in the Barents Sea, C. Schrum et al, IPY meeting, Tromsø, Norway 
    20. 2011, A look at the basal mass balance of the Fimbul ice shelf using ice penetrating radar and oceanographic borehole data,  K. Langley et al, EGU, Wienna, Austria
    21. 2011, Grease ice parameterisation in sea-ice ocean models, L. H. Smedsrud, Torge Martin, and Jens Debernard, EGU, Wienna, Austria
    22. 2010, Arctic sea ice decline due to stronger wind-driven sea ice export since the 1960's, L. H. Smedsrud et al, AGU, San Fransisco, USA.
    23. 2007, Sea Ice freezing and formation of saline shelf water in Arctic polynyas, Polar Dynamics, 29-31 August, Bergen, Norway
    24. 2004, Winter field survey in the polynya and on fast ice in Storfjorden, Bjerknes Centenary, Climate change at high latitudes, Bergen, Norway.
    25. 2000, Formation of turbid ice during the autumn freeze up in the Kara Sea, EGS, Nice, France.
    26. 2000, Experiments with frazil ice and sediment aggregation, IGS - Sea ice and its Interactions, Fairbanks, Alaska.
    27. 1997, Entrainment of sediment into sea ice due to turbulence. NATO ASI - Ice Physics, Acquafredda di Maratea, Italy.
    28. 1995, Formation Mechanisms for Dense Western Shelf Water. IAPSO XXI General Assembly, Honolulu, Hawaii, USA.

    Polar Oceanography (GEOF338): The course aims to describe circulation and dynamics of the polar oceans, including the Norwegian- and Greenland Sea. The topics are discussed with respect to climatic variations and compared for the Arctic and Antarctic regions. (spring 2013 until today)

    Introduction to the atmosphere, ocean and climate (GEOF100): The course gives an introduction to the fundamentals in meteorology, physical oceanography and climatology with emphasis on a qualitative explanation of the physical processes (Autumn, 2020, 2021, 2022 and 2023).

    Sustainable Arctic Energy (UNIS) (AE-341/841): The course provides an interdisciplinary survey of tools for assessing the merit, challenges, and risks of different potential renewable energy exploration and development choices in the rapidly changing Arctic.

    Previous courses:

    Data analysis in Oceanography and Meteorology (GEOF210, autumn 2007 and 2013)

    Physics of the Atmosphere and Ocean (GEOF105, autumn 2014, 2015, 2016)

    Air-Ice-Sea Interaction (UNIS) (AGF-311/811, 2014, 2016, 2022): The course described processes involved in air-sea exchange of heat and momentum at high latitudes. This includes deep convection and mechanisms for breaking down vertical stratification in the ocean.


    My own chronological list of publications in international peer-reviewed journals (numbered), with some books and important reports as well.

    61. Gerland, S, et al. 2023. Still Arctic?—The changing Barents Sea. Elem Sci Anth, 11: 1. doi:10.1525/elementa.2022.00088

    60.  M. Muilwijk, A. Nummelin, C. Heuzé, I. V. Polyakov, H. Zanowski, and Lars H. Smedsrud. Divergence in climate model projections of future Arctic Atlantification. Journal of Climate (2023) doi: 10.1175/JCLI-D-22-0349.1

    59. T. Karpouzoglou, L. de Steur, L. H. Smedsrud & H. Sumata. Observed changes in the Arctic freshwater outflow in Fram Strait. Journal of Geophysical Research (2022) Oceans, 127, e2021JC018122, doi: 10.1029/2021JC018122

    58. M. Muilwijk, F. Straneo, D. Slater, L. H. Smedsrud, J. Holte, M. Wood, C.S. Andresen & B. Harden Export of ice sheet meltwater from Upernavik Fjord, West Greenland Journal of Physical Oceanography (2022), volume 52, issue 3, 363-382, doi: 10.1175/JPO-D-21-0084.1

    57. L.H. Smedsrud, A. Brakstad, E. Madonna, M. Muilwijk, S. K. Lauvset, C. Spensberger, A. Born, T. Eldevik, H. Drange, E. Jeansson, C. Li, A. Olsen, Ø. Skagseth, D. A. Slater, F. Straneo, K. Våge & M. Årthun. Nordic Seas Heat Loss, Atlantic Inflow, and Arctic Sea Ice cover over the last century Reviews of Geophysics (2022), 59, e2020RG000725, doi: 10.1029/2020RG000725 

    56. J. W. Rheinlænder, L. H. Smedsrud &  K. H. Nisancioglu Internal Ocean Dynamics and the Long-term Evolution of Weddell Sea Polynya Activity Front. Clim. (2021) 3:718016, doi: 10.3389/fclim.2021.718016

    CliC, 2021. Climate and Cryosphere (CliC) Strategic Plan 2022–2031. World Climate Research Programme (WCRP) Publication 8/2021 [F. Straneo, J. Renwick, T. Naish, A. Lovecraft, L. H. Smedsrud, E. Hanna, H. Christiansen, C. Lique, H. Seroussi, S. Sugiyama, M. Vancoppenolle, T. Zhang eds.)].

    A sea of change: Europe’s future in the Atlantic realm. EASAC policy report 42, June 2021, European Academies' Science Advisory Council. J. Beckers, B. Hansen, P. Uotila, J. Duplessy, J. Deshayes, M. Visbeck, F. Dias, G. McCarthy, Erik  Sebille, T. Eldevik, L. H. Smedsrud, B. Balino, H. Asbjørnsen, H. Cabral, M. E. Miyare, L. G. Anderson, T. Palmer, L. Walløe, & M. Norton

    55.   I. Le Bras, F. Straneo, M. Muilwijk, L. H. Smedsrud, F. Li, M. S. Lozier, and N. P. Holliday. How much Arctic fresh water participates in the subpolar overturning circulation? Journal of Physical Oceanography (2021), doi: 10.1175/JPO-D-20-0240.1

    54. F. A. Haumann, R. Moorman, S. Riser, L. H. Smedsrud, T. Maksym, A. P. S. Wong, E. A. Wilson, R. Drucker, L. D. Talley, K. S. Johnson, R. M. Key, and J. L. Sarmiento. Supercooled Southern Ocean waters Geophysical research Letters (2020) 47, e2020GL090242. doi: 10.1029/2020GL090242

    Interacting Climates of Ocean Basins - Observations, Mechanisms, Predictability, and Impacts Editor: Mechoso, C. R. (2020) Cambridge University Press, ISBN: 9781108492706. 358 pp. Chapter 6:  The Arctic Mediterranean: T. Eldevik, L. H. Smedsrud, C. Li, M. Årthun, E. Madonna & L. Svendsen

    53. P. Duarte, A. Sundfjord, A. Meyer, S.R. Hudson, G. Spreen and L.H. Smedsrud Warm Atlantic Water explains observed sea ice melt rates north of Svalbard Journal of Geophysical Research: Oceans (2020) 125, e2019JC015662, doi: 10.1029/2019JC015662

    52. Skagseth, Ø., T. Eldevik, M. Årthun, H. Asbjørnsen, V. Lien and L.H. Smedsrud Reduced efficiency of the Barents Sea cooling machine Nature Climate Change (2020) doi:10.1038/s41558-020-0772-6

    51. Kimmritz, M. M. F. Counillon, L. H. Smedsrud, I. Bethke, N. Keenlyside, F. Ogawa, and Y. Wang Impact of ocean and sea ice initialisation on seasonal prediction skill in the Arctic Journal of Advances in Modeling Earth Systems (2019), 11, 4147– 4166, doi: 10.1029/2019MS001825

    SROCC, 2019. IPCC Special Report on Ocean and Cryosphere Climate Change. Summary for Policy Makers Chapter 3: Polar Regions: Coordinating Lead Authors: Michael Meredith & Martin Sommerkorn. 11 Lead Authors, Lars H. Smedsrud is one of 70 Contributing Authors.

    50. Muilwijk, M., M. Ilicak, S. B. Cornish, S. Danilov, R. Gelderloos, R. Gerdes, V. Haid, T. W. N. Haine, H. L. Johnson, Y. Kostov, T. Kovács, C. Lique, J. M. Marson, P. G. Myers, J. Scott, L. H. Smedsrud, C. Talandier, and Q. Wang Arctic Ocean response to Greenland Sea wind anomalies in a suite of model simulations Journal of Geophysical Research: Oceans (2019) 124, doi: 10.1029/2019JC015101

    49. Anhaus, P., L. H. Smedsrud, M. Årthun and F. Straneo Sensitivity of submarine melting on North East Greenland towards ocean forcing The Cryosphere Discuss (2019) doi: 10.5194/tc-2019-35

    48. Graham, R. M., P. Itkin, A. Meyer, A. Sundfjord, G. Spreen, L. H. Smedsrud, G. E. Liston, B. Cheng, L. Cohen, D. Divine, I. Fer, A. Fransson, S. Gerland, J. Haapala, S. R. Hudson, A. M. Johansson, J. King, I. Merkouriadi, A. K. Peterson, C. Provost, A. Randelhoff, A. Rinke, A. Rösel, N. Sennéchael, V. P. Walden, P. Duarte, P. Assmy, H. Steen, and M. Granskog Winter storms accelerate the demise of sea ice in the Atlantic sector of the Arctic Ocean Scientific Reports (2019), 9, #9222, doi:10.1038/s41598-019-45574-5

    47.  Årthun, M., T. Eldevik, and L. H. Smedsrud The role of Atlantic heat transport in future Arctic winter sea ice loss Journal of Climate (2019), 32, 3327–3341, doi: 10.1175/JCLI-D-18-0750.1

    46. Zamani, B., T. Krumpen, L. H. Smedsrud and R. Gerdes Fram Strait sea ice export affected by thinning: comparing highresolution simulations and observations Climate Dynamics (2019), Vol. 53, pages 3257–3270, doi: 10.1007/s00382-019-04699-z

    45. Hoke, W., T. Swierczynski, P. Braesicke, K. Lochte, L. Shaffrey, M. Drews, H. Gregow, R. Ludwig, J. E. Ø.  Nilsen, E. Palazzi, G. Sannino,  L. H. Smedsrud, and the ECRA network The European Climate Research Alliance (ECRA): Collaboration from bottom-up Advances in Geosciences (2019), 46, 1–10, doi: 10.5194/adgeo-46-1-2019

    44. Muilwijk, M., L. H. Smedsrud, M. Ilicak, and H. Drange Atlantic Water heat transport variability in the 20th century Arctic Ocean from a global ocean model and observations Journal of Geophysical Research: Oceans (2018), 123, doi:10.1029/2018JC014327

    Durack, P.J., A. Sen Gupta, and L.H. Smedsrud (Guest editors, content of special issue on Ocean WarmingIntroduction to the Special Issue on Ocean Warming Oceanography, Volume 31, Number 2, 28–31, doi: 10.5670/oceanog.2018.226.  

    43. Onarheim, I., T. Eldevik, L. H. Smedsrud, and J. C. Stroeve Seasonal and regional manifestation of Arctic sea ice loss Journal of Climate (2018), Vol. 31, 12, 4917-4932, doi: 10.1175/JCLI-D-17- 0427.1  

    42. A. Meyer, A. Sundfjord, I. Fer, Ilker, C. Provost, N. Villacieros Robineau, Z. Koenig, I. H. Onarheim, L. H. Smedsrud, P. Duarte, P. A. Dodd, R. M. Graham, S. Schmidtko and H. M. Kauko Winter to summer oceanographic observations in the Arctic Ocean north of Svalbard Journal of Geophysical Research: Oceans (2017), 2169-9291, doi: 10.1002/2016JC012391 (Part of NICE_2015 JGR Special Issue)

    AMAP, 2017. Snow, Water, Ice and Permafrost in the Arctic (SWIPA) 2017 Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway. xiv + 269 pp. Chapter 5: Arctic sea ice. Lars H. Smedsrud is one of 18 contributing authors.
    41.  P. Assmy, M. Fernández-Méndez, P. Duarte, A. Meyer, A. Randelhoff, C. J. Mundy, L. M. Olsen, H. M. Kauko, A. Bailey, M. Chierici, L. Cohen, A. P. Doulgeris, J. K. Ehn, A.  Fransson, S. Gerland, H. Hop, S. R. Hudson, N. Hughes, P. Itkin, G. Johnsen, J. A. King, B. P. Koch, Z. Koenig, S. Kwasniewski, S. R. Laney, N. Nicolaus, A. K. Pavlov, C. M. Polashenski, C. Provost, A. Rösel, M. Sandbu, G. Spreen, L. H. Smedsrud, A. Sundfjord, T. Taskjelle, A. Tatarek, J. Wiktor, P. M. Wagner, A. Wold, H. Steen and M. A. Granskog Leads in Arctic pack ice enable early phytoplankton blooms below snow-covered sea ice Scientific Reports (2017), 7:40850, doi: 10.1038/srep40850

    40. L. H. Smedsrud, M. H. Halvorsen, J. C. Stroeve, R. Zhang, and K. Kloster Fram Strait sea ice export variability and September Arctic sea ice extent over the last 80 years The Cryosphere (2017), 11, 65-79, doi: 10.5194/tc-11-65-2017

    39. T. Krumpen, R. Gerdes, C. Haas, S. Hendricks, A. Herber, V. Selyuzhenok, L. Smedsrud, and G. Spreen Recent summer sea ice thickness surveys in Fram Strait and associated ice volume fluxes The Cryosphere (2016) 10, 523-534, doi: 10.5194/tc-10-523-2016

    38. A. Nummelin, M. Ilicak, C. Li and L. H. Smedsrud Consequences of Future Increased Arctic Runoff on Arctic Ocean Stratifcation, Circulation, and Sea Ice Cover Journal of Geophysical Research, Oceans (2016), 121, 617-637, doi: 10.1002/2015JC011156

    37.  V. Ivanov, V. Alexeev, N. V. Koldunov, I. Repina, A. B. Sandø, L. H. Smedsrud and A. Smirnov Arctic Ocean heat impact on regional ice decay - a suggested positive feedback Journal of Physical Oceanography (2016), 46,  1437-1456,  doi: 10.1175/JPO-D-15-0144.1

    36. I. H. Onarheim, T. Eldevik, M. Årthun, R. B. Ingvaldsen and L. H. Smedsrud Skillful prediction of Barents Sea ice cover Geophysical Research Letters (2015), 42, 5364–5371, doi: 10.1002/2015GL064359

    35. L. H. Smedsrud and T. Martin Grease ice in basin-scale sea-ice ocean models Annals of Glaciology (2015), Vol. 56, Issue 69, doi: 10.3189/2015AoG69A765.

    34. A. Nummelin, C. Li and L. H. Smedsrud Response of Arctic Ocean stratification to changing river runoff in a column model Journal of Geophysical Research, Oceans (2015), Vol. 119, doi:10.1002/2014JC010571.

    33. T. Hattermann, L. H. Smedsrud; O. A. Nøst, J. M. Lilly and B. K. Galton-Fenzi Eddy-resolving simulations of the Fimbul Ice Shelf cavity circulation: Basal melting and exchange with open ocean Ocean Modelling (2014), Vol. 82, pages 28–44, doi: 10.1016/j.ocemod.2014.07.004

    32. I. H. Onarheim, L. H. Smedsrud, R. B. Ingvaldsen, and F. Nilsen Loss of sea ice during winter north of Svalbard Tellus A (2014) Volume 66, 23933,  doi: 10.3402/tellusa.v66.23933

    31. M. Zygmuntowska, P. Rampal, N. Ivanova, and L. H. Smedsrud Uncertainties in Arctic sea ice thickness and volume: new estimates and implications for trends The Cryosphere (2014), Vol. 8, 705-720, doi: 10.5194/tc-8-705-2014

    30. L. H. Smedsrud, I. Esau, R. B. Ingvaldsen, T. Eldevik, P. M. Haugan, C. Li, V. S. Lien, A. Olsen, A. M. Omar, O. H. Otterå, B. Risebrobakken, A. B. Sandø, V. A. Semenov, and S. A. Sorokina The role of the Barents Sea in the Arctic climate system Reviews of Geophysics (2013) 51, 415-449, doi: 10.1002/rog.20017.

    29. M. G. McPhee, R. Skogseth, F. Nilsen and L. H. Smedsrud Creation and tidal advection of a cold salinity front in Storfjorden: 2. Supercooling induced by turbulent mixing of cold water Journal of Geophysical Research, Oceans (2013), Vol. 118, doi:10.1002/jgrc.20261.

    28. R. Skogseth, M. G. McPhee, F. Nilsen and L. H. Smedsrud Creation and tidal advection of a cold salinity front in Storfjorden: 1. Polynya dynamics Journal of Geophysical Research, Oceans (2013), Vol. 118, doi:10.1002/jgrc.20231.
    27. V.A. Alexeev, V. V. Ivanov, R. Kwok, and L. H. Smedsrud North Atlantic warming and declining volume of arctic sea ice The Cryosphere Discuss. (2013) 7, 245-265, doi: 10.5194/tcd-7-245-2013.

    26. H. R. Langehaug, F. Geyer, L. H. Smedsrud, and Y. Gao Arctic sea ice decline and ice export in the CMIP5 historical simulations Ocean Modelling (2013), Vol. 71, 114–126, doi: 10.1016/j.ocemod.2012.12.006.

    25. M. Årthun, T. Eldevik, L. H. Smedsrud, Ø. Skagseth, and R. B. Ingvaldsen Quantifying the Influence of Atlantic Heat on Barents Sea Ice Variability and Retreat Journal of Climate (2012), Vol. 25, 4736-4743, doi:10.1175/JCLI-D-11-00466.1

    24. T. Hattermann, O. A. Nøst, J. M. Lilly, and L. H. Smedsrud Two years of oceanic observations below the Fimbul Ice Shelf, Antarctica Geophys. Res. Lett. (2012), Vol. 39, L12605, doi: 10.1029/2012GL051012.

    23. L. H. Smedsrud, A. Sirevaag, K. Kloster, A. Sorteberg and S. Sandven Recent wind driven high sea ice area export in the Fram Strait contributes to Arctic sea ice decline The Cryosphere (2011) Vol. 5, 821-829, doi: 10.5194/tc-5-821-2011.
     22. O.A. Nøst,  M. Biuw, V. Tverberg, C. Lydersen, T. Hattermann, Q. Zhou, L. H. Smedsrud, and K. Kovacs Eddy overturning of the Antarctic Slope Front controls glacial melting in the eastern Weddell Sea Journal of Geophysical Research (2011),  Vol. 116, C11014, doi: 10.1029/2011JC006965.

    21. B. Risebrobakken, T. Dokken, L.H. Smedsrud, C. Andersson, E. Jansen, M Moros, and E. Ivanova Early Holocene temperature variability in the Nordic Seas: The role of oceanic heat advection versus changes in orbital forcing Paleoceanography (2011), 26, PA4206, doi: 10.1029/2011PA002117.

    20. M. Årthun, R. B. Ingvaldsen, L. H. Smedsrud, and C. Schrum Dense water formation and circulation in the Barents Sea Deep-Sea Research I (2011), Vol.  58, 801–817, doi: 10.1016/j.dsr.2011.06.001

    19. L. H. Smedsrud, Grease ice thickness parametrisation Annals of Glaciology (2011), Vol. 52, Issue 57, pages 77-82, doi: 10.3189/172756411795931840

    18. S. Hendricks, S. Gerland, L.H.  Smedsrud, C. Haas, A.A. Pfaffhuber, and F. Nilsen, Sea Ice Thickness Variability in Storfjorden, Svalbard Archipelago Annals of Glaciology (2011), Vol. 52, Issue 57, 61-68, doi: 10.3189/172756411795931561

    17. L. H. Smedsrud, R. Ingvaldsen, J. E. Ø. Nilsen, and Ø. Skagseth Heat in the Barents Sea: Transport, storage and surface fluxes Ocean Science (2010), Vol 6, number 1, pages  219–234, doi: 10.5194/os-6-219-2010.

    16. R. Timmermann, A. Le Brocq, T. Deen, E. Domack, P. Dutrieux, B. Galton-Fenzi, H. Hellmer, A. Humbert, D. Jansen, A. Jenkins, A. Lambrecht, K. Makinson, F. Niederjasper, F. Nitsche, O. A. Nøst, L. H. Smedsrud, and W. H. F. Smith A consistent data set of Antarctic ice sheet topography, cavity geometry, and global bathymetry Earth Syst. Sci. Data (2010), 2, 261–273, doi: 10.5194/essd-2-261-2010

    15. F. Geyer, I. Fer and L. H. Smedsrud Structure and forcing of the overflow at the Storfjorden sill and its connection to the Arctic coastal polynya in Storfjorden Ocean Science (2010), Vol. 6, number 1, pages  401-411, doi: 10.5194/os-6-401-2010

    14. E. Darelius, L.H. Smedsrud, S. Østerhus, A. Foldvik, and T. Gammelsrød Structure and Variability of the Filchner Overflow Plume Tellus A (2009), Vol. 61, Issue 3, 446–464, doi: 10.1111/j.1600-0870.2009.00391.x

    13. R. Skogseth, F. Nilsen and L. H. Smedsrud Supercooled Water in an Arctic Polynya: Observations and Modeling Journal of Glaciology (2009), Vol. 55, 43-52, No. 189, doi: 10.3189/002214309788608840.

    12. Lars H. Smedsrud, Asgeir Sorteberg, and Kjell Kloster Recent and future changes of the Arctic sea-ice cover Geophysical  Research Letters (2008)  35, L20503, doi: 10.1029/2008GL034813

    11. Ragnheid Skogseth, Lars H. Smedsrud, Frank Nilsen and Ilker Fer Observations of hydrography and downflow of brine-enriched shelf water in the Storfjorden polynya, Svalbard Journal of Geophysical Research (2008) 113, C08049, doi: 10.1029/2007JC004452

    10. Lars H. Smedsrud , W. Paul Budgell, Alastair D. Jenkins, and Bjørn Ådlandsvik Fine scale sea ice modelling of the Storfjorden polynya Annals of Glaciology (2006), volume 44, 73-79, doi: 10.3189/172756406781811295

    9. Lars H. Smedsrud and Ragnheid Skogseth Field measurements of Arctic grease ice properties and processes Cold Regions Science and Technology (2006), Volume 44, Issue 3, April, 171-183,  doi: 10.1016/j.coldregions.2005.11.002

    8. Lars H. Smedsrud, Adrian Jenkins, David M. Holland and Ole A. Nøst Modeling ocean processes below Fimbulisen, Antarctica Journal of Geophysical Research (2006) Volume 111, C01007, doi: 10.1029/2005JC002915.

    7. Lars H. Smedsrud Warming of the deep water in the Weddell Sea along the Greenwich meridian: 1977 - 2001 Deep Sea Research Part I (2005)  Volume 52, February, Issue 2, 241 - 258, doi: 10.1016/j.dsr.2004.10.004

    Lars H. Smedsrud Causes of deep-water variations: Reply to comment by E. Fahrbach, M. Hoppema, G. Rohardt, M. Schroder and A Wisotzki Deep Sea Research Part I (2006) Volume 53, March, Issue 3, 578-580. doi: 10.1016/j.dsr.2005.12.010

    6. Lars H. Smedsrud and Adrian Jenkins Frazil Ice Formation in an Ice Shelf Water Plume Journal of Geophysical Research - Oceans (2004)  Volume 109, Number C3, C03025, doi: 10.1029/2003JC001851

    5. Lars H. Smedsrud Formation of turbid ice during autumn freeze up in the Kara Sea Polar Research (2003) Volume 22, Number 2, 267 - 286.

    4. L. H. Smedsrud, T. M. Saloranta,  P. M. Haugan, and T. Kangas Sea  ice formation on a very cold surface Geophysical  Research Letters (2003) Volume 30 , Number 6, 1284, doi: 10.1029/2002GL016786.

    3. Lars H. Smedsrud A model for entrainment of sediment into sea ice by aggregation between frazil ice crystals and sediment grains Journal of Glaciology (2002), Volume 48, Number 160, 51-61, doi: 10.3189/172756502781831520

    2. Lars H. Smedsrud Frazil ice entrainment of sediment: large-tank laboratory experiments Journal of Glaciology (2001) Volume 47, Number 158, 461 - 471. doi: 10.3189/172756501781832142

    1. Lars H. Smedsrud Estimating aggregation between suspended sediments and frazil ice Geophysical Research Letters (1998) Volume 25, Number 20, 3875 -3878, doi: 10.1029/1998GL900051 


    Lars H. Smedsrud - Frazil ice formation and incorporation of sediments into sea ice in the Kara Sea. Dr. Scient. Thesis (2000) Geophysical Institute, University of Bergen, Norway 

    Frazil ice formation in turbulent salt water is investigated through laboratory experiments and numerical modeling. Increasing frazil ice volumes and change in the size distribution are observed. Frazil ice aggregate with sediments in suspension, and form a surface ice cover. The efficiency of the process is estimated empirically and results are applied to field data from the Kara Sea continental shelf by use of the developed model. Field samples of sediment laden sea ice from the Kara Sea are presented and compared to the estimates. A substantial mass of sediments may be incorporated by the aggregation process given high levels of turbulence, i.e. strong wind under natural conditions.


    See a complete overview of publications in Cristin.



    Supercooling under Ice Shelves (NZ - based, PI: Inga Smith, Otago University)

    Climate Narratives (2022 - 2026)

    ArMOC - Overturning circulation in the new Arctic (2024 - 2027)

    Nansen legacy

    Visions of the Arctic (stranded Centre of Excellence proposal, 2022) 

    INTAROS (Integrated Arctic Observing System)

    FAMOS (Forum for Arctic Modelling and Observational Synthesis) 


    2021 - Leader of the Physical Oceanography research group at the Geophysical institute UiB

    2020 - Member of Scientific Advisory Board for the Arctic Ice Project

    2019 - 2020 US-Norway Arctic Fulbright Chair, Scripps Instition of Oceanography, UC San Diego, USA.

    2015-2021 Member of the CliC Scientific Steering Group (Climate and the Cryosphere, World Climate Research Programme)

    2015 -  Professor II at University Centre on Svalbard (UNIS)

    2014 - 2021 Coordinating Chair of Arctic ECRA (European Climate Research Alliance).

    2014 - Leader of the Polar Science Network at the University of Bergen

    2014 - Professor at the Geophysical Institute, UiB

    2013 - 2014  Associate Professor at the Geophysical Institute, UiB

    2007 - 2013 Researcher at Uni Research, Bjerknes Centre for Climate Research, Bergen. Numerical modelling, Barents Sea and Arctic (Polar Climate and Heat Transport). Arctic sea ice modelling (Norclim). Field work and data analyses, Barents and Weddell Seas (Bipolar Atlantic Thermohaline Circulation)

    2003 - 2006 Researcher at Unifob and Bjerknes Centre for Climate Research. Field work and numerical modelling, Polar Ocean Climate Processes.

    2001 - 2002 Marie Curie Fellow at the British Antarctic Survey, Cambridge, UK. Modelling frazil ice crystal formation below Antarctic ice shelves

    2001 - 2004 Post Doc at the Geophysical Institute, University of Bergen, Dynamics of warming of the deep water in the Weddell Sea.

    2000 - 2001 Laboratry experiments with sea ice formation on a very cold surface Cosmos project, Geophysical Institute Bergen.

    1999 - 2000 Worked with numerical modelling of sediment entrainment in the “Transport and faith of contaminants in the northern Seas” project. Norwegian Polar Institute.

    Tidligere prosjekt og aktivitet:


    ice2ice (Arctic Sea Ice and Greenland Ice Sheet Sensitivity)

    INTAROS (Integrated Arctic Observing System)

    BASIC (Boundary layers in the Arctic atmosphere, Seas and Ice dynamics)

    N-ICE 2015 (Norwegian young sea ICE cruise 2015)

    Koordinator forskningsruppen for luft-hav-is prosesser ved Bjerknessenteret (2013-2017)

    Bergen Ice Group og relatert feltarbeid

    Fimbulisen - Fra Topp til Tå

    Bipolar Atlantic Thermohaline Circulation (BIAC)

    Dynawarm (Dynamics of past warm climates)


    Polar Climate and Heat Transport (Pocahontas)

    REduced ice Cover in the ARctic Ocean (RECARO)

    Polar Ocean Climate Processes (ProClim)

    Transport programmet

    Tidligere adminstrative oppgaver:

    Forum for Research into Ice Shelf Processes (FRISP) nettsider og editor av rapporter 2002-2007

    Norwegian Ocean and Climate Project, NOClim  nettsider, rapportering og koordinering

    Polar Ocean Climate Processes, ProClim   nettsider, rapportering og koordinering



    PhD studenter: 

    Fullførte: Marius Årthun (22.09.2011), Sara de la Rosa (30.09.2011), Marta Zygmuntowska (11.06.2014), Aleksi Nummelin (28.10.2016), Ingrid Onarheim (7.12.2017), Jonathan W. Rheinlender (17.1.2020), Morven Muilwijk (19.8.2021), Thodoris Karpouzoglou (03.11.2023), 

    Pågående: Anna-Marie Strehl (startet sommer 2020), Linda Latuta (startet Januar 2023), Iliana V. Ntinou (UiB, BIO, startet Januar 2023).

    Master studenter: 

    Ingrid Onarheim (juni 2013), Océane Richet (august 2013),Natasha Ridenour + Mari Halvorsen (juni 2014), Martin Arntsen (UNIS, juni 2015), Morven Muilwijk (juni 2016), Philipp Anhaus (desember 2017), Alex Hamel (UCSD, juni 2020), Dana King (december 2023).