[gradsusr] Facing problem in template option

[Jeff Duda]

You don't need to create a templated index file. Template strings only
apply to the data file entry (DSET). Just set any name for the index file,
then run gribmap -i on your control file. It will create the index file.

Jeff Duda

On Fri, Jul 22, 2016 at 3:56 AM, Davide Sacchetti <
davide.sacchetti at arpal.gov.it> wrote:

> index file could not be templete ...
> use: *index /data/q.idx*
> it should work
> Davide
>
> Il giorno ven, 22/07/2016 alle 16.34 +0900, lpasmanoranjan ha scritto:
>
> Dear GrADs Users,
> I am having a problem in viewing the following dataset with template
> option. I have 6-hourly dataset for specific humidity in following format
> for 10 years:
>
> 199501/q.1995010100
> 199501/q.1995010106
> 199501/q.1995010112
> 199501/q.1995010118
> 199501/q.1995010200
> 199501/q.1995010212 and so on for January of 1995
> 199502/q.1995020100
> 199502/q.1995020112
> 199502/q.1995020118
> 199502/q.1995020200 and so on for February of 1995
> 199503/......  for March of 1995
> .....
> 199601/q.1996010100 and so on for January of 1996
> ......
> so on for 10 years
>
> I am wondering how to make a descriptor file for the above files? I have
> written as q.ctl:
>
> dset /data/%y4%2/q.%y4%m2%d2%h2
> *index /data/%y4%2/q.idx*
> dtype grib 255
> options yrev template
> undef -999.9
> xdef     520 linear 65  0.2
> ydef     540 linear 5  0.2
> zdef     1 levels 1
> tdef 15000  linear 00z01jan1995    6hr
> vars    1
> q 0 99
> endvars
>
> My problem is
> GrADs can't open the above script. It is giving the following
> error message:
> *Scanning description file:  q.ctl*
> *Open Error:  Can't open Station/Index map file /data/%y4%m2/q.idx *
> *  The data file was not opened.*
>
> When I am replacing index /data/%y4%2/q.idx in q.ctl as *index
> /data/199501/q.idx*
> it is working fine for 1 month only, but not working for next month i.e.
> set t 124
> Contouring: 0.002 to 0.02 interval 0.002
> set t 125
> d q
> GRIB I/O Error: Bit Map I/O
> Data Request Error:  Error for variable 'q'
>   Error ocurred at column 1
> DISPLAY error:  Invalid expression
>   Expression = q
>
>  Thank you, in advance, for any kind of help or suggestion in this regard.
>
>
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-- 
Jeff Duda
Post-doctoral research associate
University of Oklahoma School of Meteorology
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