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20031002: 20031002: 20031001: Problem with GDMOD and grid navigation

Kevin,

As the online help describes, CPYFIL is the name of your existing file
from which to copy the navigation information. You don't have to go through
any of those other hoops.

Steve Chiswell


>From: "Kevin Polston" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200310021718.h92HIOk1020595

>Steve,
>
>Sorry for being slow on this but I guess this is what I don't
>understand...how do I get the information from the RUC model data to use
>in CPYFIL/  Do I use GDINFO?   I have already used GDINFO and I have
>shown you all the data I got back.  Do I need to make an entry into the
>grdnav.tbl file?  I tried that and unless I entered it wrong then that
>wasn't working either. So I am unsure of where and how to get the CPFIL 
>info from the RUC data. I thought I was on the right track using GDINFO
>and getting all that other information.  I know there is still more I
>need to learn about gempak and the different programs  and how to use
>them.  
>
>KP 
>
>
>----- Original Message -----
>From: Unidata Support <address@hidden>
>Date: Thursday, October 2, 2003 4:28 pm
>Subject: 20031002: 20031001: Problem with GDMOD and grid navigation 
>
>> 
>> Kevin,
>> 
>> The problem is your ANLYSS is different.
>> 
>> As I suggested, use the CPYFIL variable in CPYFIL to copy
>> the navigation directly to the new file. With CPYFIL, 
>> the correct information will be taken from the existing file, 
>> rather than the 
>> KXKY, PROJ, ANLYSS, and GRDAREA values you have set.
>> 
>> Steve Chiswell
>> 
>> 
>> 
>> 
>> >From: "Kevin Polston" <address@hidden>
>> >Organization: UCAR/Unidata
>> >Keywords: 200310021553.h92FrLk1025693
>> 
>> >Hi Steve,
>> >
>> >I thought it wouldn't be that much of a problem to move over the 
>> files>using GDMOD but it is harder than I anticipated. For your 
>> inofrmation I
>> >am downloading the RUC 4okm grid data....using Gribmaster.  The
>> >description of the data is on the SOO/STRC webpage under model data
>> >summaries
>> >(http://strc.comet.ucar.edu/software/gribmaster/modeldatasets.htm) 
>> ....>
>> >go down to where you see the RUC data and it is the second listing 
>> there>(approximately 7 mb in size per file). I checked the grid 
>> link and it
>> >says it is grid 236, 41 km at 151 X 113. 
>> >
>> >I am creating the grid using GDCFIL.  Here are my inputs:
>> >
>> >GEMPAK-GDCFIL>list
>> > GDOUTF   = /usr1/nawips/metdat/gempak/oagrids/rmodelgrid
>> > PROJ     = lcc/25.0;-95.0;25.0
>> > GRDAREA  = 16.28;-126.14;55.48;-57.38
>> > KXKY     = 151;113
>> > MAXGRD   = 4999
>> > CPYFIL   =
>> > ANLYSS   = 4/0;1;1;0
>> > GEMPAK-GDCFIL>r
>> >
>> >These inputs give me this information when using GDINFO:
>> >
>> >GEMPAK-GDINFO>r
>> >
>> > GRID FILE: /usr1/nawips/metdat/gempak/oagrids/rmodelgrid
>> >
>> > GRID NAVIGATION:
>> >     PROJECTION:          LCC
>> >     ANGLES:                25.0   -95.0    25.0
>> >     GRID SIZE:          151 113
>> >     LL CORNER:              16.28   -126.14
>> >     UR CORNER:              55.48    -57.38
>> >
>> > GRID ANALYSIS BLOCK:
>> >     ANALYSIS TYPE:        BARNES
>> >     DELTAN:               4.000
>> >     DELTAX:           -9999.000
>> >     DELTAY:           -9999.000
>> >     GRID AREA:            15.00 -141.00   59.00  -56.00
>> >     EXTEND AREA:          15.00 -141.00   59.00  -56.00
>> >     DATA AREA:            15.00 -141.00   59.00  -56.00
>> >
>> > Number of grids in file:     0
>> >
>> > Maximum number of grids in file:   4999
>> >
>> >
>> >This info is "apparently" the same as the RUC model grid.  When I do
>> >GDINFO for it here is what I get:
>> >
>> >GEMPAK-GDINFO>r
>> >
>> > GRID FILE: /usr1/nawips/metdat/gempak/grids/03100202_ruc_us40km.gem
>> >
>> > GRID NAVIGATION:
>> >     PROJECTION:          LCC
>> >     ANGLES:                25.0   -95.0    25.0
>> >     GRID SIZE:          151 113
>> >     LL CORNER:              16.28   -126.14
>> >     UR CORNER:              55.48    -57.38
>> >
>> > GRID ANALYSIS BLOCK:
>> >     ANALYSIS TYPE:        BARNES
>> >     DELTAN:               4.000
>> >     DELTAX:           -9999.000
>> >     DELTAY:           -9999.000
>> >     GRID AREA:            15.00 -141.00   59.00  -56.00
>> >     EXTEND AREA:          15.00 -141.00   59.00  -56.00
>> >     DATA AREA:            15.00 -141.00   59.00  -56.00
>> >
>> > Number of grids in file:  1238
>> >
>> > Maximum number of grids in file:  29999
>> >
>> >
>> >
>> >But when I try to use GDMOD to move files from the RUC model data 
>> to the
>> >new grid I created I get the error message saying the grids are of
>> >different navigation. So I am unsure of what to try next.  I have 
>> also>sent my GRDNAV.TBL file since I didn't see any listing for the 
>> 236 grid.
>> >I tried to add it but I am afraid I didn't do something 
>> right....since>it didn't work for me after I had added the new 
>> entry (which is the last
>> >line of the file by the way). 
>> >
>> >So, if you have some ideas I would appreciate them.  What is funny is
>> >that I have created other grids using the same 
>> specifications....and I
>> >use GDDIAG to create some other grids and it seesm to work fine. But
>> >just a simple moving of the data from the RUC to the new gridfile 
>> isn't>working.  Thanks for your help.
>> >
>> >KP 
>> >
>> >----- Original Message -----
>> >From: Unidata Support <address@hidden>
>> >Date: Wednesday, October 1, 2003 5:26 am
>> >Subject: 20031001: Problem with GDMOD and grid navigation 
>> >
>> >> 
>> >> Kevin,
>> >> 
>> >> I'd have to see how you are creating the new file, but I'd 
>> always 
>> >> suggest using
>> >> the CPYFIL option in gdcfil to copy the navigation directly from 
>> >> your RUC40 file to
>> >> the new file.
>> >> 
>> >> Steve Chiswell
>> >> 
>> >> >From: "Kevin Polston" <address@hidden>
>> >> >Organization: UCAR/Unidata
>> >> >Keywords: 200310010444.h914iZk1000484
>> >> 
>> >> >Hi Steve,
>> >> >
>> >> >I've got another problem here that I don't understand.  I am 
>> >> trying to
>> >> >run GMOD to move files from the RUC model to another grid file I
>> >> >created. According to GDINFO.....the grid navigations are the 
>> same 
>> >> but>when I attempt to run GDMOD....I get the error message that 
>> >> says there
>> >> >are different navigation files (GDMOD-10).
>> >> >
>> >> >I am unsure of what to do next since it appears that my 
>> navigation 
>> >> files>are the same.  I am downloading the RUC model via the 
>> gribmaster>> >software (since I can get the 0-1km helicity grids as 
>> oppossed to 
>> >> what>is sent on LDM). It should be the RUC US40km grid that I am 
>> >> getting. I
>> >> >have attached a copy of the GDINFO returns I get for the RUC 
>> model 
>> >> and>the grid file I created.
>> >> >
>> >> >GEMPAK-GDINFO>r
>> >> >
>> >> > GRID FILE: 
>> /usr1/nawips/metdat/gempak/grids/03100102_ruc_us40km.gem>> >
>> >> > GRID NAVIGATION:
>> >> >     PROJECTION:          LCC
>> >> >     ANGLES:                25.0   -95.0    25.0
>> >> >     GRID SIZE:          151 113
>> >> >     LL CORNER:              16.28   -126.14
>> >> >     UR CORNER:              55.48    -57.38
>> >> >
>> >> > GRID ANALYSIS BLOCK:
>> >> >     ANALYSIS TYPE:        BARNES
>> >> >     DELTAN:               4.000
>> >> >     DELTAX:           -9999.000
>> >> >     DELTAY:           -9999.000
>> >> >     GRID AREA:            15.00 -141.00   59.00  -56.00
>> >> >     EXTEND AREA:          15.00 -141.00   59.00  -56.00
>> >> >     DATA AREA:            15.00 -141.00   59.00  -56.00
>> >> >
>> >> > Number of grids in file:  1274
>> >> >
>> >> > Maximum number of grids in file:  29999
>> >> >
>> >> >(This was the RUC Model grid data)
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >(This is the gridfile I created)......
>> >> >
>> >> >GEMPAK-GDINFO>r
>> >> >
>> >> > GRID FILE: /usr1/nawips/metdat/gempak/oagrids/rmodelgrid
>> >> >
>> >> > GRID NAVIGATION:
>> >> >     PROJECTION:          LCC
>> >> >     ANGLES:                25.0   -95.0    25.0
>> >> >     GRID SIZE:          151 113
>> >> >     LL CORNER:              16.28   -126.14
>> >> >     UR CORNER:              55.48    -57.38
>> >> >
>> >> > GRID ANALYSIS BLOCK:
>> >> >     ANALYSIS TYPE:        BARNES
>> >> >     DELTAN:               4.000
>> >> >     DELTAX:           -9999.000
>> >> >     DELTAY:           -9999.000
>> >> >     GRID AREA:            15.00 -141.00   59.00  -56.00
>> >> >     EXTEND AREA:          15.00 -141.00   59.00  -56.00
>> >> >     DATA AREA:            15.00 -141.00   59.00  -56.00
>> >> >
>> >> > Number of grids in file:     0
>> >> >
>> >> > Maximum number of grids in file:   4999
>> >> >
>> >> >
>> >> >
>> >> >Any help would be appreciated.  Thanks.
>> >> >
>> >> >
>> >> >
>> >> >Kevin Polston
>> >> >Senior Instructor, NWSTC
>> >> >Kansas City MO 64152
>> >> >
>> >> >816-880-9314 ext 273
>> >> >
>> >> 
>> >>
>>
>>****************************************************************************
>> ><
>> >> Unidata User Support                                    UCAR 
>> >> (303)497-8643                                                  
>> P.O. 
>> >> address@hidden                                   
>> Boulder, 
>> >> -----------------------------------------------------------------
>> ---
>> >> Unidata WWW Service              
>> >>
>>
>>****************************************************************************
>> ><
>> >> 
>> >
>> 
>>
>****************************************************************************
><
>> Unidata User Support                                    UCAR 
>> (303)497-8643                                                  P.O. 
>> address@hidden                                   Boulder, 
>> --------------------------------------------------------------------
>> Unidata WWW Service              
>>
>****************************************************************************
><
>> 
>