Helene R. Langehaug

Job Position: 
Senior Researcher
+47 465 43 685

Academic Degree:

Doctor in Physical Oceanography, University of Bergen, Bergen, Norway, 2011
Helene Langehaug

Research interests


Co-leading a Research Area (RA3) in the Bjerknes Climate Prediction Unit.

Part of the Bjerknes Centre for Climate Research, as a member of the Polar Climate research theme.

ResearcherID: http://www.researcherid.com/rid/A-2445-2015

ORCID ID: https://orcid.org/0000-0001-9010-5401


My research focus on the understanding of the ocean circulation and its variability in the North Atlantic Ocean and the Nordic Seas. More specifically, this relates to Subpolar Gyre dynamics, Atlantic Meridional Overturning Circulation, and water mass structure and transformation in global climate models and observations. I am particularly interested in those mechanisms that give rise to predictability on interannual-to-decadal time scales in the North Atlantic and the Nordic Seas. Most of my work is concentrated on the analysis and inter-comparison of global climate models, CMIP models and the Norwegian Earth System Model in particular.  

  • Decadal variability and predictability of ocean surface variables in the North Atlantic - Arctic region

  • Ocean circulation in the subpolar North Atlantic and Arctic Mediterranean (Subpolar Gyre and Thermohaline circulation) 


Outreach on climate prediction (in english):

Webinar for MASTS on climate prediction in the Northern North Atlantic: https://www.youtube.com/watch?v=SLF_cjhXMXA

Contributions to the Arctic Yearbook, Decadal Predictions to Climate Services: How Understanding Climate Change in the Arctic Can Support Climate Adaptation Decision-Making across the Northern Hemisphere, 2020

Policy briefing on Blue-Action activities, online, October 14, 2020

"The push for predicting the future climate", Bjerknes Centre Podcast, 16. august 2019

Outreach (most in Norwegian):

Klima i Arktis, Presentation online for school children (in Norwegian), part of CAATEX, 16. desember 2020

Outreach on climate prediction, YouTube video (in Norwegian), 23. desember 2020

"Et hav av ulike vannmasser", forskning.no, 7. oktober 2018

"Klimamodellen er forskerens lego", Bergensavisen, 23. oktober 2017

"Derfor gir havbunnen svar på klimaspørsmål", Bergensavisen, 20. april 2016

"Norskehavets hukommelse gjør klimavarsling mulig", Naturen nr. 1, 2016

"Tenk om vi ikke hadde værvarsling", Bergensavisen, 13. november 2015

"Framtidig sjøis i Arktis basert på klimamodeller", Klima i Norge 2100, 22. september 2015

"Tatt av vannmassene", www.bjerknes.uib.no, 20. november 2014

"Vind flytter is fra Arktis", Bergens Tidende, 10. februar 2013

"Varmetap styrker gyre-sirkulasjonen", www.bjerknes.uib.no, 18. mai 2012 

Artikler for Store norske leksikon


Projects involved in:

Active projects:

  • JPI-ROADMAPThe Role of ocean dynamics and Ocean-Atmosphere interactions in Driving cliMAte variations and future Projections of impact-relevant extreme events
  • BCPU: Bjerknes Climate Prediction Unit
  • RCN-CAATEX: Coordinated Arctic Acoustic Experiment
  • EU-Blue-Action: Arctic Impact on Weather and Climate (WP2 and WP4)

Completed projects:

  • RCN-NORTH: Northern constraints on the Atlantic thermohaline circulation (WP4: Variance explained in ocean and climate models)
  • RCN-VENTILATE: Ventilation age and remineralisation rates in polar and sub-polar regions as indicators for climate change (WP3: Present and future water mass evolution in the Nordic Seas
  • RCN-EPOCASA: Enhancing seasonal-to-decadal prediction of climate for the North Atlantic sector and Arctic (WP1: Mechanisms of predictability in the Nordic Seas and Arctic)
  • SKD-FRESHWATER: Freshwater from the shelf to the interior ocean: effect on climate and water-mass transformation in the Nordic Seas
  • SKD-MEDEVAC: MEchanisms of multi-DEcadal VAriability in the Climate system
  • EU-NACLIM: North Atlantic climate (WP1.1: Predictability of the North Atlantic/Arctic ocean surface state and key oceanic quantities controlling it)
  • SKD-IMMUNITY: Integrated model-data approach for understanding multidecadal natural climate variability (WP3: Data analysis and model-data comparison)
  • SKD-Contribution to the IPCC 5th AR: Model validation and analysis (WP2.3: Explore the relationship between Arctic sea ice and sub-Arctic climate)
  • EU-THOR: Thermohaline overturning - at risk? (WP1.1: Analyses of millennium-scale simulations with coupled atmosphere-ocean general circulations models)
  • BIAC: Bipolar Atlantic Thermohaline Circulation (WT4: Contributions to the Atlantic Thermohaline Circulation and consequences for climate)


Preprint: Drivers of surface salinity changes in the Greenland-Iceland Seas on seasonal and interannual time scales - a climate model study, https://doi.org/10.1002/essoar.10511221.1

NERSC Principal Investigator of the following projects

Project deputy leader of the following projects

Peer Review Publications and Books

17 total publications.

Other Publications


  1. Langehaug HR. Thermohaline variability along the Atlantic Water pathway in the forced Norwegian Earth System Model (talk). Understanding Change and Variability in the North Atlantic Climate System, ACSIS - OSNAP - RAPID, Joint Science Meeting. 2017;