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Lars Henrik Smedsrud

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Lars Henrik Smedsrud
Born (1969-10-15) October 15, 1969 (age 55)
NationalityNorwegian
Occupation(s)Polar oceanographer and an academic
TitleProfessor in Polar oceanography
Academic background
EducationM.S., Physical Oceanography
Ph.D., Physical Oceanography
Alma materUniversity of Bergen
Academic work
InstitutionsUniversity of Bergen

Lars Henrik Smedsrud is a Norwegian polar oceanographer and an academic. He is a Professor at the Geophysical Institute, University of Bergen.

Smedsrud's research covers Arctic and Southern Ocean modeling, sea ice dynamics, freezing processes, sediment incorporation, and ice shelf melting, with publications in journals such as Reviews of Geophysics, Scientific Reports, and Journal of Climate. His research has gained attention, with features in an "Expert Interview" titled "Summer Ice in the Arctic is Disappearing," appearances on radio broadcasts such as "NRK Radio", and coverage in various media outlets, including forskning.no, Nature, NRK, and The Guardian.

Smedsrud has field experience in Svalbard, the Barents Sea, the Arctic Ocean, and Antarctica, along with participation in laboratory experiments and work with various numerical models. He has been appointed as a Norwegian participant in the Fulbright Arctic Initiative from 2024 to 2026. Furthermore, he serves as a Polar Expert in an EU project that coordinates European Polar research, is a member of the Northern Ocean Panel, and is involved in developing a 'roadmap' focused on restoring Arctic sea ice, led by Ocean Visions.

Education and early career

Smedsrud earned his Master of Science in Physical Oceanography in 1996. In March 2000, he completed his PhD on frazil ice formation and sediment entrainment in polar waters.

Career

From 2004 to 2013, Smedsrud was a Researcher at the Bjerknes Centre for Climate Research and employed at the Uni Research company. Since 2013, he has served as a Professor at the Geophysical Institute, University of Bergen, and since 2014, as a Professor II at the University Centre on Svalbard. He was the US-Norway Arctic Fulbright Chair from 2019 to 2020. In 2019 he was a contributing author in the IPCC Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC).

Smedsrud has worked in Arctic research projects, including Climate Narratives, Nansen legacy, INTAROS, and FAMOS. He contributed to CliC, a project of the World Climate Research Program, between 2015 and 2021, and served on the Scientific Advisory Board of the Arctic Ice Project from 2020 to 2023. He is also a member of the Northern Ocean Panel, leads the Physical Oceanography research group at the Geophysical Institute, and a network for polar researchers at the University of Bergen.

Research

Smedsrud's research has resulted in publications focused on Barents Sea dynamics, including Atlantic inflow, sea ice formation, and fjord dynamics in Svalbard. In 2010, he reported that about 70 TW of ocean heat transport primarily affected heat losses in the southern Barents Sea, with solar radiation influencing ice production. His work highlighted the "Atlantification" of the Barents Sea, where increased Atlantic heat has led to significant sea ice variability and reduced extent. He also emphasized the Barents Sea's role in Arctic climate variability, noting that recent warming trends and reduced ice are amplifying Arctic changes. Additionally, he and co-authors developed a framework predicting Barents Sea ice cover variability, explaining 50% of observed variance up to two years ahead.

Smedsrud's studies of the Barents Sea, Nordic Seas, and Antarctic Slope Front (ASF) examined oceanic processes shaping regional climate. He noted that oceanic heat advection and orbital forcing influenced early Holocene temperature variability in the Nordic Seas, peaking around 10 ka BP. His research on the ASF showed that eddy overturning controls the exchange of Warm Deep Water, impacting ice shelf melting. Moreover, in the Barents Sea, he found that reduced heat loss and warmer outflows, driven by southerly winds, have weakened its cooling efficiency, with significant future implications.

Media coverage

Smedsrud's media features cover a range of topics related to climate change, focusing on the Arctic, the Gulf Stream, and polar regions. His work has also been highlighted in discussions about the potential collapse of the Gulf Stream, the impact of climate change on sea ice, and solutions to mitigate ice-sheet melting.

Selected articles

  • Årthun, M., Eldevik, T., Smedsrud, L. H., Skagseth, Ø., & Ingvaldsen, R. B. (2012). Quantifying the influence of Atlantic heat on Barents Sea ice variability and retreat. Journal of Climate, 25(13), 4736-4743.
  • Smedsrud, L. H., Esau, I., Ingvaldsen, R. B., Eldevik, T., Haugan, P. M., Li, C., ... & Sorokina, S. A. (2013). The role of the Barents Sea in the Arctic climate system. Reviews of Geophysics, 51(3), 415-449.
  • Zygmuntowska, M., Rampal, P., Ivanova, N., & Smedsrud, L. H. (2014). Uncertainties in Arctic sea ice thickness and volume: new estimates and implications for trends. The Cryosphere, 8(2), 705-720.
  • • Onarheim, I. H., Eldevik, T., Årthun, M., Ingvaldsen, R. B., & Smedsrud, L. H. (2015). Skillful prediction of Barents Sea ice cover. Geophysical Research Letters, 42(13), 5364-5371.
  • Smedsrud, L. H., Halvorsen, M. H., Stroeve, J. C., Zhang, R., & Kloster, K. (2017). Fram Strait sea ice export variability and September Arctic sea ice extent over the last 80 years. The Cryosphere, 11(1), 65-79.
  • Onarheim, I. H., Eldevik, T., Smedsrud, L. H., & Stroeve, J. C. (2018). Seasonal and regional manifestation of Arctic sea ice loss. Journal of Climate, 31(12), 4917-4932.

References

  1. ^ "ars H. Smedsrud–University of Bergen".
  2. "Lars H. Smedsrud–Google Scholar".
  3. "Expert interview: The summer ice in the Arctic is disappearing".
  4. "Studio 2–NRK Radio".
  5. "Collapse in ocean currents causes cold shocks in Norway, model shows. But how realistic are such studies?".
  6. "Could giant underwater curtains slow ice-sheet melting?".
  7. "Geosciences: Exporting ice".
  8. "Disagreement among scientists after new report on the Gulf Stream".
  9. "Drastic changes in the Arctic: "Now the winter ice is also disappearing"".
  10. "Svalbard: the Arctic islands where we can see the future of global heating".
  11. "Fulbright Arctic Initiative".
  12. "Indigenous and Multi-Disciplinary Experts Form New Cohort of Fulbright Arctic Initiative".
  13. "Fulbright Arctic Initiative Scholars Convened in the Norwegian Arctic".
  14. "Polar Expert Group".
  15. "About-Ocean Visions".
  16. "Lars Henrik Smedsrud–University Centre in Svalbard".
  17. "Special Report on the Ocean and Cryosphere in a Changing Climate".
  18. "The Ocean and Cryosphere in a Changing Climate" (PDF).
  19. "Project members-The Nansen legacy".
  20. "Committee and mandate".
  21. "Leadership–CliC Climate and Cryosphere".
  22. "CLIVAR /CliC Northern Oceans Region Panel".
  23. "Physical Oceanography–Members of the group".
  24. "Members of the Polar Research Network".
  25. "Heat in the Barents Sea: transport, storage, and surface fluxes".
  26. "Quantifying the Influence of Atlantic Heat on Barents Sea Ice Variability and Retreat".
  27. "THE ROLE OF THE BARENTS SEA IN THE ARCTIC CLIMATE SYSTEM".
  28. "Skillful prediction of Barents Sea ice cover".
  29. "Early Holocene temperature variability in the Nordic Seas: The role of oceanic heat advection versus changes in orbital forcing".
  30. "Eddy overturning of the Antarctic Slope Front controls glacial melting in the Eastern Weddell Sea".
  31. "Reduced efficiency of the Barents Sea cooling machine".
  32. "Climate change is slowing the Gulf Stream – but in the north it is increasing its speed".
  33. "Saving the world by strengthening understanding of climate change in polar regions".
  34. "Svalbard: the Arctic islands where we can see the future of global heating".
  35. "The hippest supercool science on Earth".
  36. "What exactly is the Gulf Stream?".
  37. "Scientists and the media must stop crying wolf, wolf about the Gulf Stream".
  38. "Saving the world by strengthening understanding of climate change in polar regions".
  39. "Why Antarctica is melting".
  40. "Researchers and the media need to stop crying 'wolf' about the Gulf Stream".
  41. "Tipping points in the climate system".
  42. "The shrinking Arctic Sea Ice".
  43. "Could giant underwater curtains slow ice-sheet melting?".
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