Change search
ReferencesLink to record
Permanent link

Direct link
A look at the ocean in the EC-Earth climate model
Stockholm University, Faculty of Science, Department of Meteorology .ORCID iD: 0000-0001-8745-7510
Show others and affiliations
2012 (English)In: Climate Dynamics, ISSN 0930-7575, E-ISSN 1432-0894, Vol. 39, no 11, 2631-2657 p.Article in journal (Refereed) Published
Abstract [en]

EC-Earth is a newly developed global climate system model. Its core components are the Integrated Forecast System (IFS) of the European Centre for Medium Range Weather Forecasts (ECMWF) as the atmosphere component and the Nucleus for European Modelling of the Ocean (NEMO) developed by Institute Pierre Simon Laplace (IPSL) as the ocean component. Both components are used with a horizontal resolution of roughly one degree. In this paper we describe the performance of NEMO in the coupled system by comparing model output with ocean observations. We concentrate on the surface ocean and mass transports. It appears that in general the model has a cold and fresh bias, but a much too warm Southern Ocean. While sea ice concentration and extent have realistic values, the ice tends to be too thick along the Siberian coast. Transports through important straits have realistic values, but generally are at the lower end of the range of observational estimates. Exceptions are very narrow straits (Gibraltar, Bering) which are too wide due to the limited resolution. Consequently the modelled transports through them are too high. The strength of the Atlantic meridional overturning circulation is also at the lower end of observational estimates. The interannual variability of key variables and correlations between them are realistic in size and pattern. This is especially true for the variability of surface temperature in the tropical Pacific (El Nio). Overall the ocean component of EC-Earth performs well and helps making EC-Earth a reliable climate model.

Place, publisher, year, edition, pages
2012. Vol. 39, no 11, 2631-2657 p.
Keyword [en]
Climate model, NEMO ocean model: general ocean circulation, Surface fluxes, Sea ice, Ocean heat transport
National Category
Meteorology and Atmospheric Sciences
URN: urn:nbn:se:su:diva-83823DOI: 10.1007/s00382-011-1239-2ISI: 000310870200003OAI: diva2:577102


Available from: 2012-12-14 Created: 2012-12-14 Last updated: 2014-11-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Brodeau, Laurent
By organisation
Department of Meteorology
In the same journal
Climate Dynamics
Meteorology and Atmospheric Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 33 hits
ReferencesLink to record
Permanent link

Direct link