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19990625: code for GRIB to .gem for GARP use

John,

Your environment should be configured so that your csh sources the 
$NAWIPS/Gemenviron file. This will add the location of the
nawips executable into your path. You should not need to
run within the $GEMEXE directory...and you may not have write
permission in that directory to create the output file.
If your environment does not find the nagrib program unless you are in the
GEMEXE directory, then it sounds like you have not sourced Gemenviron
into your working environment.

It would be of help to me to see your input commands to nagrib
and if possible, could you ftp sample of your grib file into
~gbuddy/incoming 

To make garp see your gempak grid file, the resultant file will need to
be located in the directory pointed to by $HDS, and the
$GARPHOME/config/Garp_defaults file will need matching entries for
modellabels and modelkeys (eg strings that will be identify the data set
in the Garp model menu, and corresponding key string to match
when searching the $HDS directory). That is, Garp uses the modelkeys
list to identify files which match the patterns in the comma separated
list, and associates them with the model pull down menu lable which
uses the string in the corresponding entry in modellabels.

Steve Chiswell
Unidata User Support



On Fri, 25 Jun 1999, John Knox wrote:

> Dear Steve,
> 
> Thanks for the information... I'm new to GEMPAK, not a 
> computer wizard, and our systems person graduated (not to 
> be replaced) in May.  [Welcome to a small school.]
> 
> Quick follow-up questions:
> 
> 1) Am I right that to get NAGRIB working, you simply go to 
> the directory it's in and type "nagrib"?
> 2) We tried this and put in all the commands Bob Creasey 
> suggested plus the table command you suggested, but it gave 
> a [NAGRIB -12] error and didn't read anything or write 
> anything.  I thought this might be an error in specifying 
> where the GRIB data resides, but I placed the GRIB file in 
> the same directory as nagrib without any improvement.  
> What's wrong?
> 3) Assuming this hurdle can be overcome and the .gem files 
> are written, then one more question: how will GARP know 
> that this data is there?  Will I see "NCEP" or whatever 
> displayed as a choice on the top left of the GUI?
> 
> Thanks for your help, and sorry to be such a novice.
> 
> John
> 
> On Fri, 25 Jun 1999 12:50:33 -0600 Steve Chiswell 
> <address@hidden> wrote:
> 
> > John,
> > 
> > nagrib and dcgrib are both used for converting Grid format
> > data into gempak files. I provided a ncarncep reanalysis
> > parameter conversion table for mapping the grib parameters 
> > to gempak parameters (ncar/ncep reanalysis does not use the same
> > table as the ncep operational models). The table ncarncep1.tbl
> > should be located in the $GEMTBL/grid directory - you can
> > specify for nagrib to use this table by setting:
> > gbtbls = ncarncep1.tbl
> > 
> > Steve Chiswell
> > Unidata User Support
> > address@hidden
> > 
> > On Fri, 25 Jun 1999, John Knox wrote:
> > 
> > > 
> > > I have some data files in GRIB format from the NCEP 
> > > Reanalysis project that I would like to be able to view 
> > > using GEMPAK/GARP.  Does anyone have software that can 
> > > convert GRIB to .gem format?
> > > 
> > > Thanks!
> > > 
> > > John
> > > 
> > > ------------------------------------------------
> > > Dr. John A. Knox
> > > Assistant Professor of Geography and Meteorology
> > > Room 15, Mueller Hall
> > > Valparaiso University
> > > Valparaiso, IN 46383
> > > E-mail: address@hidden
> > > Office Phone: 219-464-6003
> > > 
> > > 
> > 
> 
> ------------------------------------------------
> Dr. John A. Knox
> Assistant Professor of Geography and Meteorology
> Room 15, Mueller Hall
> Valparaiso University
> Valparaiso, IN 46383
> E-mail: address@hidden
> Office Phone: 219-464-6003
> 
>