• messy
• UseTrajFiles

Climatological Run: Read trajectories from files instead of calling TRAJ

ATTENTION: high disk space requirements !!!

MESSy-run without JUBE

Run with TRAJ, create trajectory files

• clamstraj.nml:

• timestep_trajout=6,
  timestep_trajin=0,

• channel.nml

  OUT_PREC = 1, 2, 2, 1, 1, 1   ! for trajectory output 
  OUT_CHANNEL(203)  = 'clamstraj', 2, 2,  1, T,F, T,F,F,F,F, F,F, , ,

  • => output precision: NF90_DOUBLE
    => one step per output-file => output for clamstraj switched on

• run messy-script
• save trajectory files

Use previously created trajectory files

• create new working directory
• use the same messy-script and namelist-directory
• Changes in namelist clamstraj.nml:

  timestep_trajout=0,
  timestep_trajin=6,
  dir_trajin='...',

  • The trajectories must be read in immediately before calling one of the other submodels
    => timestep_trajin must be divisor of all submodel timesteps

    • (timestep_chem, timestep_mix, timstep_bmix, timestep_cirrus)
• channel.nml

  OUT_PREC = 1, 1, 1, 1, 1, 1   ! for production 
  OUT_CHANNEL(203)  = 'clamstraj', 2, 2,  1, T,F, F,F,F,F,F, F,F, , ,

  • => output precision: NF90_FLOAT
    => no trajectory files are written out
    

• Change working directory in messy-script
• run messy-script

MESSy-run with JUBE-Script

Run with TRAJ, create trajectory files

• copy JUBE-Script (e.g. messy-clams/messy/util/xmessy_jube_clim.xml) to working directory workdir

• in workdir/xmessy_jube_clim.xml:
  • change comment:

    • <comment>messy/clams clim-run, create traj files</comment>

  • in parameterset "clamstraj_nml":

    timestep_trajout=6
    timestep_trajin=0

  • in parameterset "timer_nml":

    delta_time = 1800

  • in parameterset "channel_nml":

    out_prec_netcdf = 2
    lout_clamstraj  = T

• jube run xmessy_jube_clim.xml

• cp workdir/messy_bench/000000/000003_exe/work/climtest*_clamstraj.nc trajsave_dir

Use previously created trajectory files

• in workdir/xmessy_jube_clim.xml:
  • change comment:

    • <comment>messy/clams clim-run, use traj files</comment>

  • in parameterset "clamstraj_nml":

    timestep_trajin=6
    dir_trajin="trajsave_dir"

  • in parameterset "channel_nml":

    out_prec_netcdf = 1
    lout_clamstraj  = F

• jube run xmessy_jube_clim.xml