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You can either convert your existing OpenIFS installation or create a new installation for OpenIFS/AC. We recommend the latter and in this case you will also need the sources for the OpenIFS model (oifs43r3v2) which can also be found on the ftp server.
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We recommend to create a new installation for OpenIFS/AC. This will preserve your original OpenIFS installation and will allow you to use the standard (meteorological) model and the atmospheric composition model at the same time.interchangeably. To proceed you should:
- create a new home for the OpenIFS/AC installation, e.g. if your normal OpenIFS model is installed into a directory called
oifs43r3then you could install OpenIFS/AC into a directory calledopenifs-ac. You will need approximately 3-5 GB of disk space for the model sources. - change into your new directory and unpack therein the original OpenIFS model sources: tar xvzf oifs43r3v2.tgz
- in a second step, in the same folder unpack the OpenIFS/AC sources: tar xvzf openifs-ac.43r3.v1.tgz
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Note that it is some files of the original model will be replaced. It is therefore essential to install the original OpenIFS 43r3v2 sources first before installing the installation of the OpenIFS/AC sources. |
Alternatively, in order to convert the standard OpenIFS model to OpenIFS/AC the additional software package for composition needs to be installed into an existing OpenIFS installation:
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Note that this unpacking will not only add new files into your existing $OIFS_HOME but it will also overwrite some of the existing files with new version required for OpenIFS/AC. |
Environment settings
In order to build OpenIFS/AC the standard environment settings for oifs43r3v2 can be used with the application of two changes:
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