source: NEMO/branches/2019/dev_r11643_ENHANCE-11_CEthe_Shaconemo_diags @ 12001

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doc 11712   6 months nicolasmartin in line with the previous commit, remove the same external definition on …
ext 9621   23 months nicolasmartin Reorganisation plan for NEMO repository: implementation of SVN externals …
src 11995   4 months cetlod Finalisation of CMIP6 diags implementation, src directory
tests 12001   4 months cetlod Finalisation of CMIP6 diags implementation, tests directory
CONTRIBUTING.rst 3.3 KB 10594   14 months clevy details on contributing
INSTALL.rst 13.1 KB 10991   11 months nicolasmartin First part of content synchronisation between trunk & 4.0
LICENSE 20.6 KB 9596   23 months nicolasmartin Reorganisation plan for NEMO repository: preliminary implementation of the …
README.rst 4.0 KB 10991   11 months nicolasmartin First part of content synchronisation between trunk & 4.0
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README.rst

:Release:  |release|
:Date:     |today|
:SVN rev.: |revision|

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.

.. contents::
   :local:

Overview
========

The NEMO ocean model has 3 major components:

- |OPA| models the ocean {thermo}dynamics and solves the primitive equations
  (``./src/OCE``)
- |SI3| simulates seaice {thermo}dynamics, brine inclusions and subgrid-scale thickness variations
  (``./src/ICE``)
- |TOP| models the {on,off}line oceanic tracers transport and biogeochemical processes
  (``./src/TOP``)

These physical core engines are described in their respective `references`_ that
must be cited for any work related to their use.

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<data_assimilation>`
- Generation of :doc:`diagnostics<diagnostics>` through effective XIOS_ system
- Roll-out Earth system modeling with :doc:`coupling interface<coupling>` based on OASIS_

Several :doc:`built-in configurations<configurations>` are provided to
evaluate the skills and performances of the model which
can be used as templates for setting up a new configurations (``./cfgs``).

The user can also checkout available :doc:`idealized test cases<test_cases>` that
address specific physical processes(``./tests``).

A set of :doc:`utilities <tools>` is also provided to {pre,post}process your data (``./tools``).

Project documentation
=====================

A walkthrough tutorial illustrates how to get code dependencies, compile and execute NEMO
(``./INSTALL.rst``) . 

Reference manuals and quick start guide can be build from source and
exported to HTML or PDF formats (``./doc``) or
downloaded directly from the :website:`website<bibliography/documentation>`.

=========== ===================== ===============
 Component   Reference Manual      Quick start
=========== ===================== ===============
 |OPA|       |NEMO manual|_        |NEMO guide|
             :cite:`NEMO_manual`
 |SI3|       |SI3 manual|
             :cite:`SI3_manual`
 |TOP|       |TOP manual|
             :cite:`TOP_manual`
=========== ===================== ===============

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 |NEMO strategy|_ 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.


.. Substitutions / Links

.. |NEMO manual| image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1464816.svg
.. |NEMO guide|  image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1475325.svg
.. |SI3 manual|  image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1471689.svg
.. |TOP manual|  image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1471700.svg

.. |NEMO strategy| replace:: multi-year development strategy

.. _Special Issue: https://www.geosci-model-dev.net/special_issue40.html
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