trouble with using template with forecast files

[Yifan Yu]

I have encountered a similar problem.  I have traced my problem down to
incorrect "forecast hour" tags in the grib file.  Check to see if those
are at the correct values.

- Yifan


> Hi All,
>
> I am trying to create a templated control file for a couple of forecast
> files.
>
> I have files with the name:
> 2008101400.AWIPSF06.tm00.sg - 2008101400.AWIPSF36.tm00.sg (there are 6
> files
> total).  I have created control files called:
> eta6.awipsf06.ctl - eta6.awipsf36.ctl  (mainly because I can't get the
> %f2 option to work in my grads scripts.)
>
>  Then, I created an index file called eta6.awipsf06.idx, using:
> gribmap -i eta6.awipsf06.ctl,
> which was created without errors.
>
> I can display data using the respective control file, pointing
> at the corresponding index file.  (this is without templating).  So,
> the control files do display data without templating.
>
> I have changed the dset line in the control file to:
> dset ^%y4%m2%d2%h2.AWIPSF06.tm00.sg, changed tdef to 999,
> and have added the "options template" to the control file.
>
> I have 2 questions..fairly easy, but, I can't get this to work...
>
> First, when I change the control file to the dset, and "options template"
> above, and "set t 1", I get the error, "Undefined Grid", with no data.
> Is there something that I've missed doing in my control file so that
> I can display data using a template?
>
> Should I have changed the dset to %y4%m2%d2%h2.AWIPSF%f2.tm00.sg?  And,
> if this is a better way, how do you set the date within a
> grads script to get it to display the forecasted time?
> (i.e., "set time 12Z14Oct2008(f=12)"...that may not be right...)
>
> Thanks.
>
> Roz MacCracken
>
> Sample of part of the control file:
>
> dset /ETA6/%y4%m2/%y4%m2%d2%h2.AWIPSF06.tm00.sg
> index /ETA6/ctl/maps/test.AWIPSF06.tm00.sg.idx
> undef 9.999E+20
> title 2008100100.AWIPSF06.tm00.sg
> *  produced by grib2ctl v0.9.12.5p41
> dtype grib 212
> options template
> pdef 185 129 lcc 35.0 -95.0 105 49 25 25 -95 40635 40635
> xdef 181 linear -140 0.5
> ydef  91 linear  15 0.5
> tdef 100 linear 00Z01oct2008 1dy
> zdef 1 linear 1 1
> vars 31
> ACPCPsfc  0 63,1,0  ** surface Convective precipitation [kg/m^2]
> ALBDOsfc  0 84,1,0  ** surface Albedo [%]
> APCPsfc  0 61,1,0  ** surface Total precipitation [kg/m^2]
> BGRUNsfc  0 234,1,0  ** surface Baseflow-groundwater runoff [kg/m^2]
> CAPEsfc  0 157,1,0  ** surface Convective Avail. Pot. Energy [J/kg]
> CFRZRsfc  0 141,1,0  ** surface Categorical freezing rain [yes=1;no=0]
> CICEPsfc  0 142,1,0  ** surface Categorical ice pellets [yes=1;no=0]
> CNWATsfc  0 223,1,0  ** surface Plant canopy surface water [kg/m^2]
> CRAINsfc  0 140,1,0  ** surface Categorical rain [yes=1;no=0]
> etc....
>