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All model "data" output is written in RPN standard files.

There are different types of data the model can output:

• "normal" 2-D and 3-D output
• Time series (station data)
• Zonal means (rarely used)
• Pilot files
• Analysis files

Click on the following link for a description of the most common variables:  variable dictionariesThe model will also save these other files:

• Listings
• Restart files
• Jobs

All  files above are stored in 'machine:directory' as specified by 'CLIMAT_arch_mach' and 'CLIMAT_archdir' in the file 'configexp.cfg'.
The files are organized into the following subdirectories:

And then you should also have this file:
     maingemdm_Linux_x86-64.Abs 
or
     maingemdm
which is a copy of the executable.

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2-D and 3-D output 2-D and 3-D output

2-D and 3-D output - "normal" output used for evaluation/analysis

There are four types of output files:

...

Dynamic fields: pressure, temperature, humidity, winds, geopotential

Physic fields: all other fields

The model does all its calculations on model levels. But there is the option of outputting 3-D atmospheric fields also on pressure levels. These are the fields in the 'dp' resp. 'pp' files. All other fields/levels are in the 'dm' resp. 'pm' files.

Samples (direct model output)

All fields as requested in 'outcfg.out' are written into the four types of output files for the requested frequencies..

Inside the 'Samples' directory is one directory per month, starting with the name of the experiment and ending with a year and month: ${exp}_YYYYMM

There is also a directory ending on *_step0. This directory contains files that only contain data for timestep 0, the initial conditions. All accumulators for timestep 0 are zero, which is why this timestep is kept aside.

Inside these directories you find files with the following names:

File name explanation

All file names under Samples are build the following way:

    ${type}${start_date}_${output_date}

Where:

• type is one of the above 4 letter codes, indicating the type of data inside the file.
• start_date is the start date of the simulation in 'YYYYMMDDhh'.
• output_dateis the date of the model output in the following format:
  Filenames ending on:

Diagnostics

If 'CLIMAT_diagnos=1' in 'configexp.cfg' the model output will get further processed.
The diagnostics contain:

• monthly means (*_moyenne) and variances (*_variance) calculated for all model output fields
• 2-D time series (*_ts) for selected fields (if requested and available)

Inside the 'Diagnostics' directory is one directory per month, starting with the name of the experiment and ending with a year and month: ${exp}_YYYYMM

Inside these directories you find files with the following names:

    ${type}${exp}_YYYYMM_[moyenne/variance/ts]

Where:

• type is one of the above 4 letter codes, indicating the type of data inside the file.
• exp is the name of the experiment
  
• YYYYMM is the current year and month
• [moyenne/variance/ts] one of the three:
  

Fixed fields

Fixed fields can generally be found under the 'Samples' directory inside the directory ending on '*_step0'.
ME will be in the dm-file, all other fixed fields are usually in the pm-file.

Time series (station data)

In addition to the general 2-D and 3-D output, GEM/GEMCLIM can output time series at selected grid points (stations).

...

These files will get archive in the directory named "Pilots". They contain all fields needed to drive a simulation at the lateral boundaries.

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Listings Listings

Listings

While the model is running the listings (log files) will appear under the directory:
            ~/listings/${TRUE_HOST}
There names will all start with ${GEM_exp}_* (as defined in your 'configexp.cfg').

Once a job/month finished properly they will all get archived under:
            ${CLIMAT_archdir}/Listings/listings_${GEM_exp}.zip
'CLIMAT_archdir' is also defined in your 'configexp.cfg'.

Actually, there are up to four zip files under ${CLIMAT_archdir}/Listings/listings_${GEM_exp}.zip:

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Restart files Restart files

Restart files

At the end of each job, a restart file gets written. This contains the physics and dynamics files needed to restart the model. There will be files for each tile. These files contain a copy of the atmosphere and soil fields at the last time step of the job. When the next month gets started it reads the restart files of the previous month and continues from there. After the new month has started, the restart files from the previous month get archived on CLIMAT_arch_mach in CLIMAT_archdir as specified in your 'configexp.cfg'. It is always possible to restart the model at any given month from a restart file.

Since the restart files contain a full copy of the model atmosphere and soil they are quite large. So usually we do not keep all of them but erase some by hand afterwards. The name of a restart file looks like this:

    ${GEM_exp}_step###.tarz

With '###' being the number of the last timestep that was run.