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Tool Name *


Category *

Spatial Analysis
Data Processing
Numerical Model

What step(s) in framework *

2a. Ecosystem Components

Description *

NEMO is an ocean modelling framework. The tool helps provide numerical solutions of ocean, sea-ice, tracers and biochemistry equations and their related physics.

NEMO allows several ocean related components of the earth system to work together or separately. It also allows a two-way nesting via the AGRIF software. It is interfaced with the remaining component of the earth system (atmosphere, land surfaces, ...) via the OASIS coupler.

The latest release of NEMO is the version 3.2 (December 2009). It includes four engines (or components):
OPA - the ocean engine.
LIM2 - the previous version of the Louvain-la-Neuve sea-ice model.
LIM3 - the latest version of the Louvain-la-Neuve sea-ice model including a new thermodynamics (Vancoppenolle et al. Ocean Modelling 2008) and a C-grid Elasto-Visco-Plastic rheology.
TOP2 - the passive tracer package including a transport component (TRP), and source/sink associated to CFC and LOBSTER and PISCES biogeochemical models.

These engines can be run in standalone mode, except for sea-ice (work in progress). For ocean and passive tracers, AGRIF package is implemented to use embedded sub-grids.


Not available

Data Quality Required

Modification Required

Not available

Expertise Required

Yes, 3D hydrodynamic model that can be interfaced with ERSEM


Not available

Spatial and Temporal Scales

Not available

Licence Cost Issues



Not available

Literature: References & Manuals *

References and manuals are availabel for download at



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