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Welcome to NEMO home page!

NEMO (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 the NEMO European consortium since 2008.

This page intends to help you to get started using the NEMO platform and to introduce you to the different levels of information available. It starts here with NEMO release 4.2.0.

Reminder: Our Former web platform forge (SVN+Trac) contains the previous documentation and releases made available from the beginning of the project up to of NEMO 4.0.

Getting started

Getting your hands on NEMO: the first steps are described in detail in the NEMO users' guide . This explains how to download the code, build the environment, create the executable, and perform a first integration.

If you are already using a previous release of NEMO, please refer to the Migration Guide which aims to help you to make the move to 4.2.0.

The above users guides cover in detail what is available from gitlab and supported by NEMO System Team. Aside from this web platform, a set of test cases is also available from the Test case repository . These test cases can be useful for students, outreach, and exploring specific aspects of NEMO with light configurations. The web page also allows you to submit test cases you have developed and want to share with the community. Feel free to contribute!

Project documentation

Reference manuals fully describing NEMO for the three main component

• |OCE| models the ocean {thermo}dynamics and solves the primitive equations (./src/OCE)
• |ICE| simulates sea-ice {thermo}dynamics, brine inclusions and subgrid-scale thickness variations (./src/ICE)
• |MBG| models the {on,off}line oceanic tracers transport (./src/TOP) and PISCES biogeochemical processes

are available from Zenodo:

Component	Reference Manual	DOI
|NEMO-OCE|	NEMO ocean engine
|NEMO-ICE|	NEMO Sea Ice engine
|NEMO-MBG|	NEMO Tracers engine

These reference manuals are the publications that should be cited in your own publications. Please visit How to cite? for details.

New features of 4.2.0 release are described in the Change list section of the NEMO users' guide

Asking questions, and exchanging information

• Register once for all and use the NEMO forums on discourse to share and discuss with the NEMO community.
• Register once for all and receive by mail the NEMO newsletter : recommended for all users to receive the major announcements from the project (new releases, open meetings and main informations). Low traffic: about ten messages a year.

Contributing to NEMO visibility: projects and publications

Please help us justifying the NEMO development efforts by

• Adding your publications using NEMO and its outputs to the NEMO publications page
• Describing your project using NEMO on the NEMO projects page

NEMO also has a Special Issue in the open-access journal Geoscientific Model Development (GMD) from the European Geosciences Union The main scope is to collect relevant manuscripts covering various topics and to provide a single portal to assess the model potential and evolution.

Contributing to NEMO development

NEMO strives to be written in a way which allows the easy incorporation of developments. You are welcome to contribute to the development of the NEMO Shared reference. NEMO development is driven by NEMO Consortium planning and producing NEMO's sustainable development in order to keep a reliable evolving framework. Development is organised and scheduled through a five years development strategy, Working groups and the activities of the development team (named NEMO System Team) in a yearly workplan. More information is available on the NEMO System Team wiki

Disclaimer

The NEMO source code is freely available and distributed under CeCILL v2.0 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.