[gradsusr] template for multiple netcdf files

[Jeffrey Duda]

Joyce,
You have the general idea of templating down right, but you do have a few
template strings that are not right.  If the last four digits in the dates
of your filenames are just four-digit UTC times, use %h200.  If they're
forecast hours, use %f30.  Also, I think you should only have one file name
listed in the DSET entry (i.e., don't double up on the file names, just
leave the templated file name string there instead).

Unfortunately if that change doesn't work, that's as far as I can go to help
you, as I don't use sdfopen and it could be an issue related to that.

Hope this helps.

Jeff Duda

On Thu, Mar 10, 2011 at 6:58 PM, Joyce Meyerson <hobo at atmos.ucla.edu> wrote:

> Hi All,
>
> I am trying to write a control file to open multiple CMIP5 6hr .nc files.
>
> I am running grads-2.0.a8 on Linux version 2.6.27.45-server-1mnb.
>
> My files are 6h temperature in 3 month bundles and look like
> ta_6hrLev_HadGEM2-ES_rcp45_r1i1p1_200512010600-200603010000.nc
> ta_6hrLev_HadGEM2-ES_rcp45_r1i1p1_200603010600-200606010000.nc
> ta_6hrLev_HadGEM2-ES_rcp45_r1i1p1_200606010600-200609010000.nc
> ...
>
> They open fine individually with sdfopen.
> All the examples I've seen on the user list and elsewhere more or less have
> names that are simple sequential (e.g., pr.1998.nc, pr.1999.nc, etc. or
> month, day, year, that kind of thing).
>
> I'm not sure of the nomenclature with a time interval in the name like the
> above (xxx_%y4%m2%d2%t4-%y4%m2%d2%t4.nc)
>
> I tried %ch
> DSET ^ta_6hrLev_HadGEM2-ES_rcp45_r1i1p1_%ch.nc
> CHSUB 1 360 200512010600-200603010000
> CHSUB 361 720 200603010600-200606010000
> OPTIONS template
> DTYPE netcdf
> TDEF time 720 linear 6Z1dec2005 6hr
>  with the error message:
> ga-> open test.ctl
> Scanning description file:  test.ctl
> Open Error:  Missing or invalid dimension size.
>   --> The invalid description file record is:
>   --> TDEF time 720 linear 6Z1dec2005 6hr
>   The data file was not opened.
>
> I tried
> DSET ^ta_6hrLev_HadGEM2-ES_rcp45_r1i1p1_200512010600-200603010000.nc
> ta_6hrLev_HadGEM2-ES_rcp45_r1i1p1_%y4%m2%d2%t4-%y4%m2%d2%t4.nc
> OPTIONS template
> TDEF time 1800 linear 6Z1dec2005 6hr
> [opens just the first file]
>
> and I tried
> DSET ^ta_6hrLev_HadGEM2-ES_rcp45_r1i1p1_%y4%m2%d2%t4-%y4%m2%d2%t4.nc
> OPTIONS template
> TDEF time 1800 linear 6Z1dec2005 6hr
> [gives error message: read_metadata: gaopfn failed (rc=-88888)
> gadsdf: Couldn't ingest SDF metadata.
> SDF Descriptor file test2.ctl was not successfully opened & parsed.]
>
> I'm not the most adept grads/computer/scripting person.  Please help.
>
> Joyce
>
>
> **************************
> *Joyce Meyerson*
> *UCLA*
> *Dept. of Oceanic & Atmospheric Sciences*
> *7235 Math Science Bld.*
> *Los Angeles, CA 90095-1565*
> *hobo at atmos.ucla.edu*
>
>
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>
>


-- 
Jeff Duda
Iowa State University
Meteorology Graduate Student
3134 Agronomy Hall
www.meteor.iastate.edu/~jdduda
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