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ssh ccbcca troifs@ccbtroifs@cca-login2:~> |
The contents of the account should look like:
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troifs1@ccbtroifs1@cca-login2:~> ls bin make python t21test scratch |
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cd inidir/ob50 cp -rL /perm/rd/openifs/oifs_workshop_2017/expts-inidata/ob00/201511* . # this will be slow! |
Change
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experiment id
OpenIFS forecasts are identified by an 'experiment id', a four letter string. An experiment could consist of a single forecast date or multiple starting dates. It can be of any length and could also include a restarted forecast. However, an experiment only has one horizontal and vertical resolution.
The experiment id is contained the names of the initial files, and it is encoded into the GRIB messages within those files.
Listing experiment id
The command 'exptid' can be used to check and change the experiment id in the GRIB files.
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troifs0@ccbtroifs0@cca-login3:> cd inidir/ob50/2015110100 troifs0@cca-login3:> exptid ICMSHob00INIT In file ICMSHob00INIT, values of key experimentVersionNumber = are: ob00 |
The 'experimentVersionNumber' is the GRIB parameter encoded in the GRIB fields.
This can also be seen using the 'grib_ls' command to list the contents of the file:
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troifs0@ccbtroifs0@cca-login3:> grib_ls -p shortName,typeOfLevel,dataDate,experimentVersionNumber ICMSHob00INIT ICMSHob00INIT shortName typeOfLevel dataDate experimentVersionNumber t hybrid 20151101 ob00 t hybrid 20151101 ob00 t hybrid 20151101 ob00 ....... |
The 'exptid' and 'grib_ls' commands can also be used for multiple files:
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troifs0@cca-login3:> exptid ICM* In file ICMCLob00INIT, values of key experimentVersionNumber are: 0001 In file ICMGGob00INIT, values of key experimentVersionNumber are: 0001 ob00 In file ICMGGob00INIUA, values of key experimentVersionNumber are: ob00 In file ICMSHob00INIT, values of key experimentVersionNumber are: ob00 |
Note that the ICMCL and ICMGG*INIT files both have a experimentVersionNumber key of '0001'. This is used for climatological fields.
Set new experiment id
Use the exptid command to set the new experiment id to 'ob50':
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troifs0@cca-login3:> exptid -n ob50 ICM*ob00*
Changing expid from 'ob00' to 'ob50' for ICMCLob00INIT and writing to new file ICMCLob50INIT.
Changing expid from 'ob00' to 'ob50' for ICMGGob00INIT and writing to new file ICMGGob50INIT.
Changing expid from 'ob00' to 'ob50' for ICMGGob00INIUA and writing to new file ICMGGob50INIUA.
Changing expid from 'ob00' to 'ob50' for ICMSHob00INIT and writing to new file ICMSHob50INIT.
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Verify the command worked by checking the experimentVersionNumber in the new files:
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troifs0@cca-login3:> exptid *ob50*
In file ICMCLob50INIT, values of key experimentVersionNumber are:
0001
In file ICMGGob50INIT, values of key experimentVersionNumber are:
0001
ob50
In file ICMGGob50INIUA, values of key experimentVersionNumber are:
ob50
In file ICMSHob50INIT, values of key experimentVersionNumber are:
ob50 |
To save space, you can delete the ob00 files (these will always be available in the directory where they were copied from)
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troifs0@cca-login3:> rm ICM*ob00*
rm: remove regular file `ICMCLob00INIT'? y
rm: remove regular file `ICMGGob00INIT'? y
rm: remove regular file `ICMGGob00INIUA'? y
rm: remove regular file `ICMSHob00INIT'? y |
Useful Unix commands
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rm -rf 2015110100 rm -rf 2015110[1-5]00 |
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