Tool name * NEMO

NEMO is an ocean modelling framework which is composed of 'engines' nested in an 'environment'. The 'engines' provide numerical solutions of ocean, sea-ice, tracers and biochemistry equations and their related physics. The 'environment' consists of the pre- and post-processing tools, the interface to the other components of the Earth System, the user interface, the computer dependent functions and the documentation of the system. 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. NEMO description The latest release of NEMO is the version 3.2 (December 2009). It includes four engines (or components):

  1. OPA - the ocean engine.
  2. LIM2 - the previous version of the Louvain-la-Neuve sea-ice model.
  3. 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.
  4. 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. (from:

Category All, Data, Mapping, Numerical Model, Spatial Analysis, Visualization
What step(s) in analysis framework 2a
What step(s) in Governance framework

Not available

Data Quality Required

Modification Required

Not available

Expertise Required

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

Spatial and Temporal

Not available


Not available

License cost issues

Literature: References & Manuals *