[GEMPAK #DHU-135597]: Help - Gempak :)

Ana,

If you have both grids in the same file, you can compute the average using 
GDDIAG, where "GEM_FILE" is the name of the file containing both grids:

 GDFILE   = GEM_FILE
 GDOUTF   = GEM_FILE
 GFUNC    = avg(P06M^f06,P06M^f18)
 GDATTIM  = 100409/1200
 GLEVEL   = 0
 GVCORD   = none
 GRDNAM   = PAVG^f012
 GRDTYP   = S
 GPACK    =  
 GRDHDR   =  
 PROJ     =  
 GRDAREA  =  
 KXKY     =  
 MAXGRD   = 200
 CPYFIL   = GEM_FILE
 ANLYSS   =  

In this example we're using P06M forecasts for f06 and f18 from 100409/1200, 
you'll want to adjust these to suit your file/grids date and time.  also the 
GRDNAM = PAVG can be anything you prefer.  See

http://www.unidata.ucar.edu/cgi-bin/gempak/manual/programs_index?gddiag

and 

http://www.unidata.ucar.edu/cgi-bin/gempak/manual/variables_index?grdnam

for more help.

Michael James
Unidata


> Hello Tom, How are you?
> 
> I don't know if you can help me..but...
> 
> I'm trying to do the interpolation the P06M for 2 hours the synop data
> for plot with gdcntr.
> 
> I'm using the oagrid for create and oabsfc for input surface file. But i
> don't know How i plus P06M for hours (06 and 18) and generate interpolation.
> 
> With gempak  is possible plus the values for two hours and after create
> the grid file??
> 
> Thanks
> Ana
> 
> 
> p.s.: sorry if my English is not very good.
> 
> I will send for you the gif with one hour P06M  that i create.
> 
> 


Ticket Details
===================
Ticket ID: DHU-135597
Department: Support GEMPAK
Priority: Normal
Status: Open