Doctoral degree in physical oceanography at the University of Bergen in 2011. Employed as a research scientist at the Nansen Environmental and Remote Sensing Center since 2012. My research focus on the understanding of Subpolar Gyre dynamics, Atlantic Meridional Overturning Circulation, and water mass structure and transformation in climate models. 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. Main tool in my research is analysis and inter-comparison of global climate models (CMIP5/6 models).

 

Teaching in Advanced Ocean Dynamics

2025

• Chafik, Léon; Årthun, Marius; Langehaug, Helene R. et al. (2025). The Nordic Seas overturning is modulated by northward-propagating thermohaline anomalies. (external link)
• Devilliers, Marion; Olsen, Steffen M.; Langehaug, Helene R. et al. (2025). Constraining CMIP6 simulations for Atlantic Water in the Arctic using an AMOC-SST index. (external link)

2024

• Passos, Leilane G.; Langehaug, Helene R.; Årthun, Marius et al. (2024). On the Relation between Thermohaline Anomalies and Water Mass Transformation in the Eastern Subpolar North Atlantic. (external link)

2023

• Risebrobakken, Bjørg; Jensen, Mari Fjalstad; Langehaug, Helene R. et al. (2023). Buoyancy forcing: A key driver of northern North Atlantic sea surface temperature variability across multiple timescales. (external link)
• Langehaug, Helene R.; Sagen, Hanne; Stallemo, Astrid et al. (2023). Constraining CMIP6 estimates of Arctic Ocean temperature and salinity in 2025-2055. (external link)

2022

• Passos, Leilane G.; Langehaug, Helene R.; Årthun, Marius et al. (2022). Impact of initialization methods on the predictive skill in NorCPM: an Arctic–Atlantic case study. (external link)

2021

• Langehaug, Helene R.; Ortega, Pablo; Counillon, Francois Stephane et al. (2021). Propagation of Thermohaline Anomalies and Their Predictive Potential along the Atlantic Water Pathway. (external link)
• Bethke, Ingo; Wang, Yiguo; Counillon, Francois Stephane et al. (2021). NorCPM1 and its contribution to CMIP6 DCPP. (external link)
• Årthun, Marius; Wills, Robert C.J.; Johnson, Helen L. et al. (2021). Mechanisms of decadal North Atlantic climate variability and implications for the recent cold anomaly. (external link)

2020

• Dai, Panxi; Gao, Yongqi; Counillon, Francois et al. (2020). Seasonal to decadal predictions of regional Arctic sea ice by assimilating sea surface temperature in the Norwegian Climate Prediction Model. (external link)

See a complete overview of publications in Cristin.