LIM : The Louvain-la-Neuve Sea Ice Model

LIM is a numerical model of sea ice designed for climate studies and operational oceanography. It is coupled to the ocean general circulation model OPA (Ocean Parallélisé) and is part of NEMO (Nucleus for European Modeling of the Ocean). The code of the coupled model is freely available under a software licensing agreement. LIM is used in several global climate models contributing to the assessment reports of the IPCC (Intergovernmental Panel on Climate Change) and in the operational oceanography system MERCATOR. Two versions of the model are available : LIM2 and LIM3. A one-dimensional version (LIM1D) has also been developed for process studies.

The user's guide for LIM3 is now available, see LIM3's page.


LIM3 outputs on Google Earth!

Evolution of the sea ice cover in both hemispheres in 2007, as simulated by NEMO-LIM3. The color scale depicts the ice thickness, from thin (light blue) to thick (white) ice.


The LIM Team:

From the left to the right : Paul Hezel, François Massonnet, Jonathan Raulier, Roger Stevens, Antoine Barthélemy, Thierry Fichefet, Olivier Lecomte, Alice Pestiaux.  

Other contributorsHugues Goosse, Martin Vancoppenolle


Contact :

Thierry Fichefet 
Earth and Life Institute (
Georges Lemaître Centre for Earth
and Climate Research (TECLIM)

Chemin du Cyclotron, 2
B-1348 Louvain-la-Neuve
, Belgium
Phone : +32-10-473295
Fax : +32-10-474722
E-mail :