8.2 Example: business as usual

To run the model with 3 level zooming (glb6x4,eur3x2,eur1x1) on 25 tropospheric levels, with all processes switched on, and driven by TMPP hdf files, the following settings should be included in the rcfile (details are explained in the rcfile).

• First specify a directory where unpacked meteo files are stored permanently, or where unpacked files should be stored temporary by the script described below.

        tmm.dir        : ${RUNDIR}/tmm-buf
  

  Optionally, specify that the disk usage should be limitted by automatically removing old files:

        tmm.dir.clean  : F
        tmm.dir.size   : 4000M
  

• If the meteo files are stored in a (remote?) archive, it is possible to let the job retrieve and install meteo files before the model run starts:

        tmm.setup.apply        :  T
  

  Which files should be installed and where to search for them is specified in terms of settings for number of sets. First specify the number of sets that is listed in the rcfile:

        tmm.setup.nset         :  1
  

  Then, for each individual set, specify wether it should be applied or not and fill the remaining details. In the following example, all TMPP meteo files for 'glb3x2' and 'eur1x1' are installed from the archive on TERAS:

        tmm.setup.001.apply    :  T
        tmm.setup.001.files    :  uvsp w spm t q cld sub surf
        tmm.setup.001.sources  :  tmpp:class=od;type=fc;levs=ml60;grid=glb3x2;tres=_21p06 tmpp:class=od;type=fc;levs=ml25;grid=eur1x1;tres=_21p06
        tmm.setup.001.search   :  /shared/kelder/TM/meteo
  

  This information is used by the script 'tm5_tmm_setup' to retrieve, unpack, and/or link meteo files.

• The TM5 code should now how to form the name of a meteo file, and get an idea about what the contents is. Thereto, a 'sourcekey' is defined for each region and the global surface grid:

        tmm.sourcekey.glb6x4.*     : tmpp:class=od;type=fc;levs=ml60;grid=glb3x2;tres=_21p06
        tmm.sourcekey.eur3x2.*     : tmpp:class=od;type=fc;levs=ml60;grid=glb3x2;tres=_21p06
        tmm.sourcekey.eur1x1.*     : tmpp:class=od;type=fc;levs=ml25;grid=eur1x1;tres=_21p06
        tmm.sourcekey.glb1x1.*     : tmpp:class=od;type=fc;levs=sfc;grid=glb1x1;tres=_21p03
  

  Both the '6x4' and the '3x2' meteo are taken from the '3x2x60' fields; levels and cells are combined automatically if necessary.

  For Windows type of path names, add two extra keys, for example:

        tmm.sourcekey.glb6x4.*     : tmpp:class=od;type=fc;levs=ml60;grid=glb3x2;tres=_21p06;pathsep=\;namesep=\
  

• The basic temporal treatment is to keep fields constant during 6 hourly intervals. Exceptions are surface pressure that should be interpolated at staggered 6 hourly resolution, and surface fields that should be constant during 3 or 24 hours:

        meteo.tinterp.*          :  const6
        meteo.tinterp.sp         :  interp6_3
        meteo.tinterp.surf.inst  :  const3
        meteo.tinterp.surf.aver  :  aver3
        meteo.tinterp.surf.day   :  aver24_3