Preparing Initial Files to UploadThe upload of initial files is made from the OpenIFS@Home Dashboard on the OpenIFS@Home portal. It expects the initial files to be laid out in a particular directory structure. There are 3 types of permitted directory structures as illustrated in the diagram left. They correspond to whether multiple dates are present, and whether ensembles of initial data are being used. (a) Single date.In this case the directory structure would be as following: | Code Block |
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% ls -R hijc # "hha4" is the experiment id in this example
hijc/2017041212:
ICMCLhijcINIT ICMSHhijcINIT specwavein wam_subgrid_0
ICMGGhijcINIT cdwavein uwavein wam_subgrid_1
ICMGGhijcINIUA sfcwindin wam_grid_tables wam_subgrid_2 |
| Info |
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There is no fort.4 or namelist file and no 'ecmwf' directory as is common in the files downloaded from the ECMWF provided initial model files. |
(b) Multiple dates.This case is an extension of (a) but with multiple sub-directories, one for each date. The example below shows two dates but it's possible to use many more. | Code Block |
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| % ls -R hijc # "hha4" is the experiment id in this example
hijc/2017041212:
ICMCLhijcINIT ICMSHhijcINIT specwavein wam_subgrid_0
ICMGGhijcINIT cdwavein uwavein wam_subgrid_1
ICMGGhijcINIUA sfcwindin wam_grid_tables wam_subgrid_2
hijc/2017041300:
ICMCLhijcINIT ICMSHhijcINIT specwavein wam_subgrid_0
ICMGGhijcINIT cdwavein uwavein wam_subgrid_1
ICMGGhijcINIUA sfcwindin wam_grid_tables wam_subgrid_2 |
(c) Ensemble of starts and multiple datesThis is the more complex case. Not only are there multiple dates but for each date there are multiple ensemble members. The directory structure will now look like: <expid>/<date>/<ens>/. The following examples shows two dates, each with 3 ensemble members. By convention, there is always a '000' member. | Code Block |
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| % ls -R h76y # 'h76y' is the experiment id in this case
h76y:
2016092500
h76y/2016092500:
000
001
002
h76y/2016092500/000:
ICMCLh76yINIT ICMSHh76yINIT specwavein wam_subgrid_0
ICMGGh76yINIT cdwavein uwavein wam_subgrid_1
ICMGGh76yINIUA sfcwindin wam_grid_tables wam_subgrid_2
h76y/2016092500/001:
ICMCLh76yINIT ...... # lines omitted for brevity
h76y:
2016092512:
h76y/2016092512:
000
001
002
h67y/2016092512/000:
ICMCLh76yINIT ICMSHh76yINIT specwavein wam_subgrid_0
..... # lines omitted for brevity
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In this case, to save space, make links between common files in each ensemble directory. |
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