...
Once the initial data directory is prepared, the next step is to create the experiment directory structure where the model will run from. This is not the same location as the initial files just created.
To setup the experiment directory structure, use the 'createEX' command. To see what arguments it takes, use the command:
| Code Block |
|---|
createEX -h |
The most basic form of the command is:
| Code Block |
|---|
createEX --date 2015110100 -e ob00 |
This would repeat the ob00 forecast for a single date. The default is to create the experiment directory in your scratch directory with the same name as the experiment id.
New experiment: ob01 - single data, 5 members
Following the creation of the initial files for the experiment id 'ob01' given above, let's create a forecast experiment with 5 ensemble members for a single forecast date:
| Code Block |
|---|
troifs0@cca-login3:~> createEX -d 2015110100 -e ob01 -i scratch/inidir -m 5 |
which generates the output:
| Code Block |
|---|
Creating directory structure for experiment ob01 in directory /scratch/ectrain/troifs0/ob01/...
Date : 2015110100
Copying files from directory (inidir): scratch/inidir
Date: 2015110100
Created forecast experiment directory : /scratch/ectrain/troifs0/ob01/2015110100/00/
Linking files and copying namelist.
Using IFS data directory: /fwsm/lb/project/openifs/ifsdata/
Created forecast experiment directory : /scratch/ectrain/troifs0/ob01/2015110100/01/
Linking files and copying namelist.
Using IFS data directory: /fwsm/lb/project/openifs/ifsdata/
Created forecast experiment directory : /scratch/ectrain/troifs0/ob01/2015110100/02/
Linking files and copying namelist.
Using IFS data directory: /fwsm/lb/project/openifs/ifsdata/
Created forecast experiment directory : /scratch/ectrain/troifs0/ob01/2015110100/03/
Linking files and copying namelist.
Using IFS data directory: /fwsm/lb/project/openifs/ifsdata/
Created forecast experiment directory : /scratch/ectrain/troifs0/ob01/2015110100/04/
Linking files and copying namelist.
Using IFS data directory: /fwsm/lb/project/openifs/ifsdata/
Created forecast experiment directory : /scratch/ectrain/troifs0/ob01/2015110100/05/
Linking files and copying namelist.
Using IFS data directory: /fwsm/lb/project/openifs/ifsdata/
All done: /scratch/ectrain/troifs0/ob01/ ready. |
Directory structure
If we look at in the directory: /scratch/ectrain/troifs0/ob01/2015110100, we see:
| Code Block |
|---|
troifs0@ccb-login3:> cd scratch/ob01/2015110100
troifs0@ccb-login3:> ls
00 03 ICMCLob50INIT ICMSHob50INIT specwavein wam_subgrid_0
01 04 ICMGGob50INIT cdwavein uwavein wam_subgrid_1
02 05 ICMGGob50INIUA sfcwindin wam_grid_tables wam_subgrid_2 |
Each member will be run in the numbered directories: "00", "01", "02", "03", "04", and "05". These contain:
| Code Block |
|---|
troifs0@ccb-login3:> ls -l 00
total 16
lrwxrwxrwx 1 troifs0 ectrain 52 May 25 18:15 255l_2 -> /fwsm/lb/project/openifs/ifsdata/40r1/climate/255l_2
lrwxrwxrwx 1 troifs0 ectrain 16 May 25 18:15 ICMCLob50INIT -> ../ICMCLob50INIT
lrwxrwxrwx 1 troifs0 ectrain 16 May 25 18:15 ICMGGob50INIT -> ../ICMGGob50INIT
lrwxrwxrwx 1 troifs0 ectrain 17 May 25 18:15 ICMGGob50INIUA -> ../ICMGGob50INIUA
lrwxrwxrwx 1 troifs0 ectrain 16 May 25 18:15 ICMSHob50INIT -> ../ICMSHob50INIT
lrwxrwxrwx 1 troifs0 ectrain 11 May 25 18:15 cdwavein -> ../cdwavein
-rw-r----- 1 troifs0 ectrain 9886 May 25 18:15 fort.4
lrwxrwxrwx 1 troifs0 ectrain 49 May 25 18:15 ifsdata -> /fwsm/lb/project/openifs/ifsdata/40r1/climatology
lrwxrwxrwx 1 troifs0 ectrain 40 May 25 18:15 rtables -> /fwsm/lb/project/openifs/ifsdata/rtables
lrwxrwxrwx 1 troifs0 ectrain 12 May 25 18:15 sfcwindin -> ../sfcwindin
lrwxrwxrwx 1 troifs0 ectrain 13 May 25 18:15 specwavein -> ../specwavein
lrwxrwxrwx 1 troifs0 ectrain 10 May 25 18:15 uwavein -> ../uwavein
lrwxrwxrwx 1 troifs0 ectrain 18 May 25 18:15 wam_grid_tables -> ../wam_grid_tables
-rw-r----- 1 troifs0 ectrain 2220 May 25 18:15 wam_namelist
lrwxrwxrwx 1 troifs0 ectrain 16 May 25 18:15 wam_subgrid_0 -> ../wam_subgrid_0
lrwxrwxrwx 1 troifs0 ectrain 16 May 25 18:15 wam_subgrid_1 -> ../wam_subgrid_1
lrwxrwxrwx 1 troifs0 ectrain 16 May 25 18:15 wam_subgrid_2 -> ../wam_subgrid_2 |
Notice the links back to the parent directory. To save space, the files that do not change between members are kept in the parent directory.
Only the model namelists, fort.4 for the atmosphere, wam_namelist for the wave model, are individual to a forecast ensemble member directory.
Running the forecast experiment
...