Articles | Volume 12, issue 2
Research article
26 Apr 2021
Research article |  | 26 Apr 2021

Labrador Sea subsurface density as a precursor of multidecadal variability in the North Atlantic: a multi-model study

Pablo Ortega, Jon I. Robson, Matthew Menary, Rowan T. Sutton, Adam Blaker, Agathe Germe, Jöel J.-M. Hirschi, Bablu Sinha, Leon Hermanson, and Stephen Yeager

Related authors

A multi-model analysis of the decadal prediction skill for the North Atlantic ocean heat content
Teresa Carmo-Costa, Roberto Bilbao, Jon Robson, Ana Teles-Machado, and Pablo Ortega
EGUsphere,,, 2024
Short summary
Impact of volcanic eruptions on CMIP6 decadal predictions: a multi-model analysis
Roberto Bilbao, Pablo Ortega, Didier Swingedouw, Leon Hermanson, Panos Athanasiadis, Rosie Eade, Marion Devilliers, Francisco Doblas-Reyes, Nick Dunstone, An-Chi Ho, William Merryfield, Juliette Mignot, Dario Nicolì, Margarida Samsó, Reinel Sospedra-Alfonso, Xian Wu, and Stephen Yeager
Earth Syst. Dynam., 15, 501–525,,, 2024
Short summary
Ocean biogeochemical reconstructions to estimate historical ocean CO2 uptake
Raffaele Bernardello, Valentina Sicardi, Vladimir Lapin, Pablo Ortega, Yohan Ruprich-Robert, Etienne Tourigny, and Eric Ferrer
Earth Syst. Dynam. Discuss.,,, 2023
Revised manuscript has not been submitted
Short summary
Constraining low-frequency variability in climate projections to predict climate on decadal to multi-decadal timescales – a poor man's initialized prediction system
Rashed Mahmood, Markus G. Donat, Pablo Ortega, Francisco J. Doblas-Reyes, Carlos Delgado-Torres, Margarida Samsó, and Pierre-Antoine Bretonnière
Earth Syst. Dynam., 13, 1437–1450,,, 2022
Short summary
Pacific Decadal Oscillation modulates the Arctic sea-ice loss influence on the midlatitude atmospheric circulation in winter
Amélie Simon, Guillaume Gastineau, Claude Frankignoul, Vladimir Lapin, and Pablo Ortega
Weather Clim. Dynam., 3, 845–861,,, 2022
Short summary

Related subject area

Dynamics of the Earth system: models
Stable stadial and interstadial states of the last glacial's climate identified in a combined stable water isotope and dust record from Greenland
Keno Riechers, Leonardo Rydin Gorjão, Forough Hassanibesheli, Pedro G. Lind, Dirk Witthaut, and Niklas Boers
Earth Syst. Dynam., 14, 593–607,,, 2023
Short summary
The modelled climatic response to the 18.6-year lunar nodal cycle and its role in decadal temperature trends
Manoj Joshi, Robert A. Hall, David P. Stevens, and Ed Hawkins
Earth Syst. Dynam., 14, 443–455,,, 2023
Short summary
The future of the El Niño–Southern Oscillation: using large ensembles to illuminate time-varying responses and inter-model differences
Nicola Maher, Robert C. Jnglin Wills, Pedro DiNezio, Jeremy Klavans, Sebastian Milinski, Sara C. Sanchez, Samantha Stevenson, Malte F. Stuecker, and Xian Wu
Earth Syst. Dynam., 14, 413–431,,, 2023
Short summary
Regime-oriented causal model evaluation of Atlantic–Pacific teleconnections in CMIP6
Soufiane Karmouche, Evgenia Galytska, Jakob Runge, Gerald A. Meehl, Adam S. Phillips, Katja Weigel, and Veronika Eyring
Earth Syst. Dynam., 14, 309–344,,, 2023
Short summary
Seasonal forecasting skill for the High Mountain Asia region in the Goddard Earth Observing System
Elias C. Massoud, Lauren Andrews, Rolf Reichle, Andrea Molod, Jongmin Park, Sophie Ruehr, and Manuela Girotto
Earth Syst. Dynam., 14, 147–171,,, 2023
Short summary

Cited articles

Ba, J., Keenlyside, N.S., Park, W., Latif, M., Hawkins, E., and Ding, H.: A mechanism for Atlantic multidecadal variability in the Kiel Climate Model, Clim. Dynam., 41, 2133–2144, 2013. 
Baehr, J., Hirschi, J., Beismann, J.-O., and Marotzke, J.: Monitoring the meridional overturning circulation in the North Atlantic: A model-based array design study, J. Mar. Res., 62, 283–312,, 2004. 
Barrier, N., Cassou, C., Deshayes, J., and Treguier, A.-M.: Response of North Atlantic Ocean Circulation to Atmospheric Weather Regimes, J. Phys. Oceanogr., 44, 179–201,, 2014. 
Bingham, R. J. and Hughes, C. W.: Geostrophic dynamics of meridional transport variability in the subpolar North Atlantic, J. Geophys. Res. Oceans, 114, C12029,, 2009. 
Bretherton, C. S., Widmann, M., Dymnikov, V. P., Wallace, J. M., and Blad, I.: The effective number of spatial degrees of freedom of a time-varying field, J. Climate, 12, 1990–2009,< 1990:TENOSD>2.0.CO;2, 1999. 
Short summary
Deep Labrador Sea densities are receiving increasing attention because of their link to many of the processes that govern decadal climate oscillations in the North Atlantic and their potential use as a precursor of those changes. This article explores those links and how they are represented in global climate models, documenting the main differences across models. Models are finally compared with observational products to identify the ones that reproduce the links more realistically.
Final-revised paper