NEMO_ for Nucleus for European Modelling of the Ocean is a state-of-the-art modelling framework for research activities and forecasting services in ocean and climate sciences, developed in a sustainable way by a European consortium since 2008.
Overview
The NEMO ocean model has 3 major components:
- |OCE| models the ocean {thermo}dynamics and solves the primitive equations (:file:`./src/OCE`)
- |ICE| simulates sea-ice {thermo}dynamics, brine inclusions and subgrid-scale thickness variations (:file:`./src/ICE`)
- |MBG| models the {on,off}line oceanic tracers transport and biogeochemical processes (:file:`./src/TOP`)
These physical core engines are described in their respective reference publications that must be cited for any work related to their use (see :doc:`cite`).
Assets and solutions
Not only does the NEMO framework model the ocean circulation, it offers various features to enable
- Create :doc:`embedded zooms<zooms>` seamlessly thanks to 2-way nesting package AGRIF_.
- Opportunity to integrate an :doc:`external biogeochemistry model<tracers>`
- Versatile :doc:`data assimilation<da>`
- Generation of :doc:`diagnostics<diags>` through effective XIOS_ system
- Roll-out Earth system modeling with :doc:`coupling interface<cplg>` based on OASIS_
Several :doc:`built-in configurations<cfgs>` are provided to evaluate the skills and performances of the model which can be used as templates for setting up a new configurations (:file:`./cfgs`).
The user can also checkout available :doc:`idealized test cases<tests>` that address specific physical processes (:file:`./tests`).
A set of :doc:`utilities <tools>` is also provided to {pre,post}process your data (:file:`./tools`).
Project documentation
A walkthrough tutorial illustrates how to get code dependencies, compile and execute NEMO (:file:`./INSTALL.rst`).
Reference manuals and quick start guide can be build from source and exported to HTML or PDF formats (:file:`./doc`) or downloaded directly from the :forge:`development platform<wiki/Documentations>`.
| Component | Reference Manual | Quick Start Guide |
|---|---|---|
| |NEMO-OCE| | |DOI man OCE|_ | |DOI qsg| |
| |NEMO-ICE| | |DOI man ICE| | |
| |NEMO-MBG| | |DOI man MBG| |
Since 2014 the project has a `Special Issue`_ in the open-access journal Geoscientific Model Development (GMD) from the European Geosciences Union (EGU_). The main scope is to collect relevant manuscripts covering various topics and to provide a single portal to assess the model potential and evolution.
Used by a wide audience, numerous :website:`associated projects<projects>` have been carried out and extensive :website:`bibliography<bibliography/publications>` published.
Development board
The NEMO Consortium pulling together 5 European institutes (CMCC_, CNRS_, MOI_, `Met Office`_ and NERC_) plans the sustainable development in order to keep a reliable evolving framework since 2008.
It defines the |DOI dev stgy|_ that is implemented by the System Team on a yearly basis in order to release a new version almost every four years.
When the need arises, :forge:`working groups<wiki/WorkingGroups>` are created or resumed to gather the community expertise for advising on the development activities.
Disclaimer
The NEMO source code is freely available and distributed under :download:`CeCILL v2.0 license <../../../LICENSE>` (GNU GPL compatible).
You can use, modify and/or redistribute the software under its terms, but users are provided only with a limited warranty and the software's authors and the successive licensor's have only limited liability.