Helene R. Langehaug

Job Position: 
Senior Researcher
Research Group: 
E-mail: 
Phone: 
+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

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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) 

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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

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Projects involved in:

Active projects:

  • JPI-ROADMAP: The 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)

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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


Personal Home Page: 
http://www.nersc.no/staff/helene-langehaug

Project leader of the following projects

  1. VENTILATE: Ventilation and remineralisation in polar and sub-polar regions as indicators for climate change
  2. NORTH: NORthern constraints on the Atlantic ThermoHaline circulation

NERSC Principal Investigator of the following projects

  1. MAPARC: MAPARC
  2. ROADMAP: ROADMAP

Project deputy leader of the following projects

  1. BCPU: Bjerknes Climate Prediction Unit

Publications

My Publications in CRIStin

Peer Review Publications and Books

17 total publications.

2021

  1. Bethke I, Wang Y, Counillon F, Keenlyside NS, Kimmritz M, Fransner F, et al. NorCPM1 and its contribution to CMIP6 DCPP. Geoscientific Model Development. 2021;14(11).
  2. Årthun M, Wills RCJ, Johnson HL, Chafik L, Langehaug HR. Mechanisms of decadal North Atlantic climate variability and implications for the recent cold anomaly. Journal of Climate. 2021;34(9).
  3. Langehaug HR, Ortega P, Counillon F, Matei D, Maroon EA, Keenlyside NS, et al. Propagation of Thermohaline Anomalies and Their Predictive Potential along the Atlantic Water Pathway. Journal of Climate. 2021;35(7).

2020

  1. Dai P, Gao Y, Counillon F, Wang Y, Kimmritz M, Langehaug HR. Seasonal to decadal predictions of regional Arctic sea ice by assimilating sea surface temperature in the Norwegian Climate Prediction Model. Climate Dynamics. 2020;

2018

  1. He Y-C, Tjiputra J, Langehaug HR, Jeansson E, Gao Y, Schwinger J, et al. A model-based evaluation of the Inverse Gaussian transit-time distribution method for inferring anthropogenic carbon storage in the ocean. Journal of Geophysical Research (JGR): Oceans. 2018;123(3).
  2. Langehaug HR, Sandø AB, Årthun M, Ilicak M. Variability along the Atlantic water pathway in the forced Norwegian Earth System Model. Climate Dynamics. 2018;

2016

  1. Langehaug HR, Mjell TL, Otterå OH, Eldevik T, Ninnemann US, Kleiven HF. On the reconstruction of ocean circulation and climate based on the "Gardar Drift". Paleoceanography. 2016;31(3).
  2. Langehaug HR, Matei D, Eldevik T, Lohmann K, Gao Y. On model differences and skill in predicting sea surface temperature in the Nordic and Barents Seas. Climate Dynamics. 2016;48(3-4).

2015

  1. Lohmann K, Mignot J, Langehaug HR, Jungclaus JH, Matei D, Otterå OH, et al. Using simulations of the last millennium to understand climate variability seen in palaeo-observations: Similar variation of Iceland-Scotland overflow strength and Atlantic Multidecadal Oscillation. Climate of the Past. 2015;11(2).

2014

  1. Lohmann K, Jungclaus JH, Matei D, Mignot J, Menary M, Langehaug HR, et al. The role of subpolar deep water formation and Nordic Seas overflows in simulated multidecadal variability of the Atlantic meridional overturning circulation. Ocean Science. 2014;10(2).
  2. Sandø AB, Gao Y, Langehaug HR. Poleward ocean heat transports, sea ice processes, and Arctic sea ice variability in NorESM1-M simulations. Journal of Geophysical Research (JGR): Biogeosciences. 2014;119(3).

2013

  1. Langehaug HR, Geyer F, Smedsrud LH, Gao Y. Arctic sea ice decline and ice export in the CMIP5 historical simulations. Ocean Modelling. 2013;71.
  2. Lohmann K, Jungclaus JH, Matei D, Mignot J, Langehaug HR, Ba J, et al. The role of subpolar deep water formation and Nordic Seas overflows in simulated multidecadal variability of the Atlantic overturning. Ocean Science Discussions. 2013;

2012

  1. Medhaug I, Langehaug HR, Eldevik T, Furevik T, Bentsen M. Mechanisms for decadal scale variability in a simulated Atlantic meridional overturning circulation (paper). Climate Dynamics. 2012;
  2. Langehaug HR, Falck E. Changes in the properties and distribution of the intermediate and deep waters in the Fram Strait. Progress in Oceanography. 2012;
  3. Langehaug HR, Rhines PB, Eldevik T, Mignot J, Lohmann K. Water mass transformation and the North Atlantic Current in three multicentury climate model simulations. Journal of Geophysical Research (JGR): Oceans. 2012;117.

2011

  1. Langehaug HR. Circulation and transformation of Atlantic and Arctic water masses in climate models [Internet]. 2011. Available from: http://hdl.handle.net/1956/5282

Other Publications

2022

  1. Pou JMH, Langehaug HR. Predictive skill in the Nordic Seas – Based on analysis of decadal hindcasts from the Norwegian Climate Prediction Model. 2022.

2018

  1. Langehaug HR. Assessing Artic Ocean heat content in global climate models (talk). 7th FAMOS School and Meeting. 2018;
  2. Langehaug HR. Predictive skill along the extension of the North Atlantic Current in the Norwegian Climate Prediction Model (short presentation). Workshop on the analysis of the AMV in the CMIP6 context. 2018;
  3. Langehaug HR. Mechanisms that give rise to predictability in the North Atlantic – Nordic Seas (invited lecture). Summer School on Climate Teleconnections and Predictions: Past, Present and Future. 2018;
  4. Langehaug HR. Predictive skill along the extension of the North Atlantic Current in the Norwegian Climate Prediction Model (talk). Blue-Action workshop. 2018;

2017

  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;

2016

  1. Langehaug HR. On model differences and skill in predicting sea surface temperature in the Nordic and Barents Seas (poster). 4th Nordic Conference on Climate Change Adaptation. 2016;

2015

  1. Langehaug HR. Arctic/Atlantic exchanges at the entrance of the Nordic Seas in climate models (invited talk). Ice2Ice workshop. 2015;
  2. Langehaug HR. Forecasting sea temperatures (invited talk). Fish Pool Seminar. 2015;
  3. Langehaug HR, Matei D, Eldevik T, Lohmann K, Gao Y, Årthun M. Ocean advection – a source for predictability in the Nordic Seas (poster). CLIVAR-ICTP Workshop on Decadal Climate Variability and Predictability: Challenge and Opportunity. 2015;
  4. Langehaug HR. Nordic Seas predictability - towards a better understanding of predictive skill on longer lead time (talk). Annual Meeting NACLIM. 2015;
  5. Mjell T, Langehaug HR, Otterå OH, Eldevik T, Ninnemann U, Kleiven HF. On the reconstruction of ocean circulation and climate based on the “Gardar Drift” (poster). The Past Earth Network (PEN) opening conference. 2015;
  6. Langehaug HR, Mjell TL, Otterå OH, Eldevik T, Ninnemann US, Kleiven HF. On the reconstruction of ocean circulation and climate based on the “Gardar Drift” (talk). Arctic Workshop 2015. 2015;
  7. Langehaug HR, Matei D, Eldevik T, Lohmann K, Gao Y. Winter SST predictability in the Nordic Seas (talk). European Geosciences Union General Assembly 2015. 2015;

2014

  1. Langehaug HR, Lohmann K, Eldevik T, Matei D, Gao Y. Decadal predictability of winter SST in the Nordic Seas and the Barents Sea in three CMIP5 models (talk). Annual Meeting NACLIM. 2014;
  2. Langehaug HR, Lohmann K, Eldevik T, Matei D, Gao Y. Decadal predictability of SST in the North Atlantic sector in three CMIP5 models (talk). Workshop on predictability of climate in the North Atlantic Sector. 2014;

2013

  1. Langehaug HR, Rhines PB, Eldevik T, Mignot J, Lohmann K. Water mass transformation in the North Atlantic (talk). International Workshop on Modeling the Ocean. 2013;
  2. Langehaug HR. Lecture from a previous ResClim student (invited talk). ResClim All Staff Meeting. 2013;

2012

  1. Langehaug HR. Circulation and transformation of Atlantic and Arctic water masses in climate models (talk). Physical Oceanography Dissertation Symposium (PODS). 2012;
  2. Langehaug HR, Rhines PB, Eldevik T, Mignot J, Lohmann K. Water mass transformation and the North Atlantic Current in three multi-century climate model simulations (poster). International Joint Conference EU-THOR and BMBF North Atlantic Projects. 2012;
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