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20040518: 20040514: GEMPAK to GRIB conversion program available?

Jon,

For level=0, gvcord=none, I would suggest:

GLEVEL=0
GVCORD=none
PDSVAL=tmpk%1

The %1 will specify the vertical coordinnate in $GEMTBL/grid/vcrdgrib1.tbl
as:
001 Surface of earth (inc sea sfc)                         NONE     0

Steve Chiswell
Unidata User Support



>From: "Case.Jon" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200405181748.i4IHmMtK027392

>Hi Steve,
>
>I appreciate the heads-up with the new GDGRIB program. I wasn't aware
>that this program was available through GEMPAK.  
>
>I have started experimenting with the GDGRIB program, and I have had
>success in writing the pressure-coordinate GEMPAK variables into a GRIB
>file.  However, no matter what I have tried, I continue to receive the
>following error when I try to write surface variables with level=0,
>gvcord=none:
>
>[GDGRIB -86] Vertical coordinate is not valid in GRIB.
>
>I have tried a variety of settings for PDSVAL to no avail.  Your
>additional help is much appreciated.
>
>Thanks,
>Jon
>
>Here are my parameters in GDGRIB:
>--------------------------------------
> GDFILE   = 200106010000_pres50km_3hr.grd
> GFUNC    = tmpk
> GDATTIM  = 010601/0000f276
> GLEVEL   = 0
> GVCORD   = none
> GBTBLS   =  
> GBFILE   = testarps.grb
> VERCEN   =  
> PDSVAL   =  
> PRECSN   =  
> WMOHDR   =  
> CPYFIL   = 200106010000_pres50km_3hr.grd
> PROJ     = str/90;-25;0
> GRDAREA  = 1.19;-70.00;0.86;110.00
> KXKY     = 355;355
>
>-----Original Message-----
>From: Unidata Support [mailto:address@hidden] 
>Sent: Friday, May 14, 2004 6:19 PM
>To: Case.Jon
>Cc: address@hidden; Manobianco.John; Dreher.Joe;
>Evans.Randy
>Subject: 20040514: GEMPAK to GRIB conversion program available? 
>
>
>Jon,
>
>GDGRIB is used to create a grib formated product from a GEMPAK grid.
>See phelp gdgrib for usage.
>
>Since several additional parameters are necessary for the grib product,
>eg pds block values, those parameters are input on a per grid basis.
>That is, you have to run the program for each grid you want to create a
>grib product for.
>
>The HPC uses this program to create grib products operationally.
>
>Steve Chiswell
>Unidata User Support
>
>
>
>
>>From: "Case.Jon" <address@hidden>
>>Organization: UCAR/Unidata
>>Keywords: 200405142013.i4EKDEtK028271
>
>>This is a multi-part message in MIME format.
>>
>>------_=_NextPart_001_01C439EF.CAD184C4
>>Content-Type: text/plain;
>>      charset="us-ascii"
>>Content-Transfer-Encoding: quoted-printable
>>
>>To Whom it May Concern,
>>=20
>>I am interested in a backwards conversion program that goes from GEMPAK
>
>>format back to GRIB format.  Does anyone know of any such converter?
>>I ask because we are interested in taking model output data from one 
>>mesoscale model (ARPS) and inputting it as initial conditions into 
>>another mesoscale model (MM5) in an Observing System Simulation 
>>Experiment.  ARPS has readily available a post-processing program that 
>>will convert ARPS model data to pressure-coordinate data in GEMPAK 
>>files. MM5 has readily available a read program to ingest GRIB data in 
>>pressure coordinates.  The missing link is the GEMPAK to GRIB. =20 =20 
>>Any help is much appreciated!
>>Regards,
>>Jonathan
>>
>>-----------------------------------------------------------------=20
>>Jonathan L. Case, Meteorologist=20
>>ENSCO Inc. / Applied Meteorology Unit=20 1980 N. Atlantic Ave., Suite 
>>230=20 Cocoa Beach, FL 32931=20
>>Voice: (321) 853-8264=20
>>Fax:    (321) 853-8415=20
>>---------------------------------------------------------------- =20
>>
>>=20
>>
>>------_=_NextPart_001_01C439EF.CAD184C4
>>Content-Type: text/html;
>>      charset="us-ascii"
>>Content-Transfer-Encoding: quoted-printable
>>
>><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 
>><HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = 
>>charset=3Dus-ascii"> <META content=3D"MSHTML 6.00.2800.1400" 
>>name=3DGENERATOR></HEAD> <BODY> <DIV><SPAN 
>>class=3D890030620-14052004><FONT face=3DArial size=3D2>To = Whom it 
>>May=20 Concern,</FONT></SPAN></DIV> <DIV><SPAN 
>>class=3D890030620-14052004><FONT face=3DArial=20 
>>size=3D2></FONT></SPAN>&nbsp;</DIV>
>><DIV><SPAN class=3D890030620-14052004><FONT face=3DArial size=3D2>I am 
>>= interested in a=20 backwards conversion program that goes from GEMPAK
>
>>format back to GRIB=20 format.&nbsp; Does anyone know of any such = 
>>converter?</FONT></SPAN></DIV> <DIV><SPAN 
>>class=3D890030620-14052004><FONT face=3DArial size=3D2>I ask = because 
>>we are=20 interested in taking model output data from one mesoscale 
>>model (ARPS) = and=20 inputting it as initial conditions into another 
>>mesoscale model (MM5) in = an=20 Observing System Simulation 
>>Experiment.&nbsp; ARPS has readily available = a=20 post-processing 
>>program that will convert ARPS model data to = pressure-coordinate=20 
>>data in GEMPAK files.&nbsp;MM5 has readily available a read program to 
>>= ingest=20 GRIB data in pressure coordinates.&nbsp; The missing link 
>>is the GEMPAK = to=20 GRIB.&nbsp; </FONT></SPAN></DIV> <DIV><SPAN 
>>class=3D890030620-14052004><FONT face=3DArial=20 
>>size=3D2></FONT></SPAN>&nbsp;</DIV>
>><DIV><SPAN class=3D890030620-14052004><FONT face=3DArial size=3D2>Any =
>
>>help is much=20 appreciated!<BR>Regards,</FONT></SPAN></DIV>
>><DIV><SPAN class=3D890030620-14052004><FONT face=3DArial=20
>>size=3D2>Jonathan</FONT></SPAN></DIV><!-- Converted from text/rtf 
>>format =
>>-->
>><P><SPAN lang=3Den-us><FONT face=3DArial=20 
>>size=3D2>--------------------------------------------------------------
>>--=
>>-</FONT></SPAN>=20
>><BR><SPAN lang=3Den-us><FONT face=3DArial>Jonathan L. Case,=20 
>>Meteorologist</FONT></SPAN> <BR><SPAN lang=3Den-us><FONT = 
>>face=3DArial>ENSCO Inc. /=20 Applied Meteorology Unit</FONT></SPAN> 
>><BR><SPAN lang=3Den-us><FONT=20 face=3DArial>1980 N. Atlantic Ave., 
>>Suite 230</FONT></SPAN> <BR><SPAN=20 lang=3Den-us><FONT 
>>face=3DArial>Cocoa Beach, FL 32931</FONT></SPAN> = <BR><SPAN=20 
>>lang=3Den-us><FONT face=3DArial>Voice: (321) 853-8264</FONT></SPAN> = 
>><BR><SPAN=20 lang=3Den-us><FONT face=3DArial>Fax:&nbsp;&nbsp;&nbsp; 
>>(321) = 853-8415</FONT></SPAN>=20 <BR><SPAN lang=3Den-us><FONT 
>>face=3DArial=20 
>>size=3D2>--------------------------------------------------------------
>>--=
>></FONT><FONT=20
>>face=3DArial>&nbsp;</FONT></SPAN> </P>
>><DIV>&nbsp;</DIV></BODY></HTML>
>>
>>------_=_NextPart_001_01C439EF.CAD184C4--
>>
>--
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