19990301: gdvint

Simon,

Your input data file does not have valid boundaries, therefore 
gdvint cannot determine the grid region. This is the information
I needed when I previously asked for the gdinfo projection information.

 GEMPAK-GDINFO>r

 GRID FILE: outfile                                                             
    

 GRID NAVIGATION: 
     PROJECTION:          MER                 
     ANGLES:                 0.0   115.0     0.0
     GRID SIZE:          100  85
     LL CORNER:         nan       nan       
     UR CORNER:         nan       nan       

 GRID ANALYSIS BLOCK: 
     ANALYSIS TYPE:        BARNES
     DELTAN:               0.971
     DELTAX:           -9999.000
     DELTAY:           -9999.000
     GRID AREA:         nan     nan     nan     nan     
     EXTEND AREA:       nan     nan     nan     nan     
     DATA AREA:         nan     nan     nan     nan     

 Number of grids in file:   196


As you see from the information above, whatever program that
was used to create the gempak file did not correctly define
the LL and UR corner of the grid region. Without this
information, the grid spacing can not be determined.
When a grid file is creates, the GR_MNAV cann will generate
the correct navblk information for the file that is created
with the GD_CREF call. If you have the program that processed
the MM5 data, you can try to determine why the navblk is
not correct.

Steve CHiswell
Unidata User Support


>From: address@hidden (Simon Lownam)
>Organization: .
>Keywords: 199903022048.NAA23317

>Steve,
>    The file is there and it's called `outfile'. This is
>suppose to be in Gempak format. It was converted from MM5
>output at 12 h of the simulation.
>
>    Thanks for your assistance.
>
>Simon.
>-----
>> 
>> 
>> Simone,
>> Try it again now.
>> 
>> Steve Chiswell
>> 
>> >From: address@hidden (Simon Lownam)
>> >Organization: .
>> >Keywords: 199903022001.NAA21534
>> 
>> >Chris,
>> >    I do not have permission to write to that directory.
>> >Here is the error message:
>> >
>> >lftp> pwd
>> >/incoming/chiz
>> >lftp> put outfile
>> >put: Access failed: 553 outfile: Permission denied.
>> > 
>> >    Let me know if there is another alternative.
>> >
>> >Thanks,
>> >Simon.
>> >-----
>> >> 
>> >> 
>> >> Simon,
>> >> 
>> >> you can ftp the file to me at ftp.unidata.ucar.edu,
>> >> use the anonymous login and cd /incoming/chiz
>> >> put your file in my incoming directory.
>> >> 
>> >> Thanks,
>> >> 
>> >> Steve Chiswell
>> >> 
>> >> 
>> >> >From: address@hidden (Simon Lownam)
>> >> >Organization: .
>> >> >Keywords: 199903021740.KAA15909
>> >> 
>> >> >Steve,
>> >> >    Thanks for your reply. I am trying to create out2 file (the interpol
> ate
>> > d
>> >> >data). The `outfile' is my input file, which has data on sigma levels.
>> >> >
>> >> >    I just tried it again and I'm including the error messgae below:-
>> >> >
>> >> > GDFILE    Grid file                         outfile
>> >> > GDOUTF    Output grid file                  out2
>> >> > GDATTIM   Grid date/time                    980608/1200
>> >> > GVCORD    Grid vertical coordinate          pres
>> >> > GLEVEL    Grid level                        500
>> >> > MAXGRD    Maximum number of grids           1000
>> >> > GAREA     Graphics area                     asia
>> >> > VCOORD    Vertical coordinate type          PRES
>> >> > Parameters requested: GDFILE,GDOUTF,GDATTIM,GVCORD,GLEVEL,MAXGRD,GAREA,
>> >> > VCOORD.
>> >> > GEMPAK-GDVINT>GAREA = 15;110;25;120
>> >> > GEMPAK-GDVINT>run
>> >> > [GEMPLT -16]  NIPBND - Invalid projection bounds.
>> >> > [GDVINT -11]  Subset region is invalid.
>> >> >
>> >> >  Please let me know how I can get my data to you.
>> >> >
>> >> >Thanks for your help.
>> >> >Simon.
>> >> >-----
>> >> >
>> >> >> 
>> >> >> >From: address@hidden (Simon Lownam)
>> >> >> >Organization: .
>> >> >> >Keywords: 199903012046.NAA09509
>> >> >> 
>> >> >> >Hi,
>> >> >> > I'm a new user of Gempak. I'm trying to convert MM5 output to Gempak
>> >> >> >format to take advantage of some of the diagnostics in Gempak. I've
>> >> >> >got a converted Gempak file and I was trying to do the vertical
>> >> >> >interpolation using the command `gdvint', when I got an error message
> :
>> >> >> >
>> >> >> >     [GEMPLT -16]  NIPBND - Invalid projection bounds
>> >> >> >
>> >> >> >     Here is how I had the various parameters defined: -
>> >> >> >
>> >> >> >  GDFILE    Grid file                         outfile
>> >> >> >  GDOUTF    Output grid file                  out2
>> >> >> >  GDATTIM   Grid date/time                    last
>> >> >> >  GVCORD    Grid vertical coordinate          sgma:100/pres
>> >> >> >  GLEVEL    Grid level                        sfc;1000-900-25;850-100
> -50
>> >> >> >  MAXGRD    Maximum number of grids           1000
>> >> >> >  GAREA     Graphics area                     grid
>> >> >> >  VCOORD    Vertical coordinate type          pres;none
>> >> >> >  Parameters requested: GDFILE,GDOUTF,GDATTIM,GVCORD,GLEVEL,MAXGRD,GA
> REA
>> > ,
>> >> >> >  VCOORD.
>> >> >> >
>> >> >> >
>> >> >> >Can you please provide me with some guidance as to what I may be doin
> g
>> >> >> >incorrectly.
>> >> >> >
>> >> >> >Thanks,
>> >> >> >Simon.
>> >> >> >X8895
>> >> >> >
>> >> >> >
>> >> >> 
>> >> >> Simon,
>> >> >> does the out2 file exist, or are you attempting to have gdvint create 
> the
>> >> >> file. If it exists, and the projection is not appropriate to your
>> >> >> other file, then you can receive the above message.
>> >> >> 
>> >> >> Can you provide me with the gdinfo projection information
>> >> >> for the file "outfile" which you are trying to interpolate?
>> >> >> 
>> >> >> I may need to download a copy of your original file to look at.
>> >> >> 
>> >> >> Steve Chiswell
>> >> >> **********************************************************************
> ***
>> > ***
>> >> >> Unidata User Support                                    UCAR Unidata P
> rog
>> > ram
>> >> >> (303)497-8644                                                  P.O. Bo
> x 3
>> > 000
>> >> >> address@hidden                                   Boulder, CO
>  80
>> > 307
>> >> >> ----------------------------------------------------------------------
> ---
>> > ---
>> >> >> Unidata WWW Service                        http://www.unidata.ucar.edu
> /  
>> >    
>> >> >> **********************************************************************
> ***
>> > ***
>> >> >> 
>> >> >
>> >> 
>> >> *************************************************************************
> ***
>> >> Unidata User Support                                    UCAR Unidata Prog
> ram
>> >> (303)497-8644                                                  P.O. Box 3
> 000
>> >> address@hidden                                   Boulder, CO 80
> 307
>> >> -------------------------------------------------------------------------
> ---
>> >> Unidata WWW Service                        http://www.unidata.ucar.edu/  
>    
>> >> *************************************************************************
> ***
>> >> 
>> >
>> 
>> ****************************************************************************
>> Unidata User Support                                    UCAR Unidata Program
>> (303)497-8644                                                  P.O. Box 3000
>> address@hidden                                   Boulder, CO 80307
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>