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The OpenIFS distribution includes source code, datafiles and supporting software. Once logged into the ftp site you will see the following directories:
| Contents of ftp.ecmwf.int | Description |
|---|---|
| data/ | OpenIFS data files; climate files, vtables, rtables and namelist. |
| src/openifs | OpenIFS source code tar files. |
| src/scm | Single Column model code and files. |
| src/osm | Offline Surface model code and files. |
| metview | Metview macros for use with OpenIFS. |
| user_workshops | Files 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. |
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):
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These files are the same for all OpenIFS experiments. To save space for multiple users, it's recommended they are placed somewhere central and not copied to each user run directory. The sample job scripts provided assume that links are created from these files to the user run directory. We suggest creating a directory ifsdata somewhere and unpacking the files there. |
| Filename | Size | Description |
|---|---|---|
| ifsdata_climatology.tar.gz | 15Mb | Contains the various long-lived gases and aerosol climatologies used by the model. Unpacks into a directory called climate. |
| ifsdata_cy38_climate.tar.gz | 2.5Gb | Contains ozone climatology for all supported horizontal and vertical resolutions, including full and reduced Gaussian grid versions. Unpacks into two directories, 38 and 38r1. The files in 38r1 link to the files in 38 but allow for model version specific changes. n.b. On some systems, this file is too big for gzip to uncompress. In which case download the specific resolutions you need. |
| ifsdata_cy38_climate_t*.tar.gz | varies | These files do not need to be downloaded if you download the above ifsdata_cy38_climate.tar.gz. These contain the same data but split one file per horizontal resolution. If you want to save space, you can download just the resolutions you intend working with. |
| ifsdata_rtables.tar.gz | <1Mb | Contains namelists defining the supported grid resolutions for the radiation scheme. File name suffix refers to the type of grid and last 3 digits refers to the horizontal resolution. Unpacks to a directory: rtables. |
| ifsdata_vtables.tar.gz | <1Mb | Contains namelists defining the coefficients for the supported vertical resolutions. File name suffix refers to the number of levels. Unpacks to a directory: vtables. |
To unpack the files either use the tar zxf command if your version of tar supports the 'z' option, or use gunzip followed by tar xf.
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OpenIFS users may also find the MetView Metview and MAGICS graphics software useful with OpenIFS.To download these packages, visit the ECMWF software webpage.
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