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Note that the additional data packages required for OpenIFS/AC are only made available for specific time periods and grid resolutions. |
Obtaining
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the model code
This section contains information about where the source code package for OpenIFS/AC can be obtained and how the sources should be installed.
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- Unpack oifs-ac-43r3-initcond.tgz into /data/openifs-ac which results in a directory /data/openifs-ac/INITIAL-CONDITIONS.
The files therein are initial data files for the first day of month for all 12 months of 2010. - Unpack ICMCL-2010.tgz into /data/openifs-ac which results in a directory /data/openifs-ac/ICMCL.
This directory contains monthly files with surface boundary conditions (e.g. SSTs, soil temps, albedos, LAI etc). - From you conventional OpenIFS installation's
OIFS_DATA_DIRcopy the directories ifsdata and rtables to /data/openifs-ac/43r3 as they are also needed here. - Further, create a directory /data/openifs-ac/43r3/wam which needs to contain wave model initial data for 2010-01-01. (presently files are copied over from cca:/lus/snx11062/scratch/ms/nl/nm6/ECE-DATA/OPENIFS/43r3)
Building the model
This section describes how to build the binary model executable.
Environment settings
Similar to the standard OpenIFS model, OpenIFS/AC requires system and user software libraries (e.g. eccodes, netcdf, etc) and relies on shell environment variables which need to be set according to your local installation. In order to avoid the duplication of documentation we refer to the OpenIFS User Guide as the prerequisites for OpenIFS are also valid for OpenIFS/AC. For more information about environment variable settings please see here.
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In order to run OpenIFS/AC a number of further changes and additions to the environment are required. These are described below.
Building the
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binary executable
On the ECMWF HPCF it is possible to compile the model using a login node. However, in order to complete the acceptance testing with chemistry an interactive node should be requested.
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