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License

OpenIFS is provided free-of-charge and licenses are usually per institution.

Only licensed users are provided with the username and password to access the ftp site. For more information, or to request a license, please email: openifs-support@ecmwf.int.

OpenIFS directory layout

The model will unpack into a directory called 'oifs'. The directory structure for the OpenIFS model and code will depend on local installation requirements. A suggested directory structure has all source code and data organised under a single directory 'oifs'.  If desired, the grib_api could also be installed under the oifs directory but it's recommended it is placed elsewhere.


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OpenIFS ftp site

All the files related to the OpenIFS models are available from the ftp site: ftp.ecmwf.int. If you do not have ftp site password, please email : openifs-support@ecmwf.int. Only licensed institutes are provided with access.

The OpenIFS models are distributed as compressed tarfiles and include source code, datafiles and supporting software. Once logged into the ftp site you will see the following directories:

Contents of ftp.ecmwf.intDescription
data/OpenIFS data files; climate files, vtables, rtables and namelist.
src/openifsOpenIFS source code tar files.
src/scmSingle Column model code and files.
src/osm-htesselOffline Surface Model (HTESSEL) code and files.
metviewMetview macros for use with OpenIFS.
user_workshopsFiles used in OpenIFS user workshops.
users/

User group specific space. Model runs provided for groups will be found here.



Contents of directory src/openifs:Description
38r1/Contains OpenIFS versions based on Cycle 38 Release 1 of IFS.
40r1/Contains OpenIFS versions based on Cycle 40 Release 1 of IFS

Download source code

To obtain the source code from the ftp site, change directory to the '38r1' directory and retrieve the latest source code (the filename may be different):

Code Block
% ftp ftp.ecmwf.int
user: openifs
cd src/openifs/38r1
ls
get oifs38r1v04.tar.gz
get oifs38r1v04_docs.tar.gz
quit

% tar zxf oifs38r1v04.tar.gz
% tar zxf oifs38r1v04_docs.tar.gz

 

OpenIFS git repository

A git repository for OpenIFS is hosted by ECMWF. This is intended for developers and contributors to the OpenIFS model and is not generally accessible.

For more information please contact: openifs-support@ecmwf.int.

Download data files

The data directory contains the following gzipped tarfiles, all of which should be downloaded.

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Code Block
% mkdir oifs/ifsdata
% cd oifs/ifsdata

% ftp ftp.ecmwf.int
Connected to ftp.ecmwf.int.
Name (ftp.ecmwf.int): openifs
331 User openifs OK. Password required
ftp> cd data
ftp> prompt
Interactive mode off.
ftp> mget ifsdata_*
ftp> quit

% tar zxf ifsdata_climatology.tar.gz
% tar zxf ifsdata_cy38_climate.tar.gz
% tar zxf ifsdata_rtables.tar.gz
% tar zxf ifsdata_vtables.tar.gz
% rm *.tar.gz
 
% ls
38  38r1  climatology  namelist  rtables  vtables

Additional software

OpenIFS users may also find the Metview and MAGICS graphics software useful with OpenIFS.

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