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20010416: Importing ship format data

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  • Subject: 20010416: Importing ship format data
  • Date: Mon, 16 Apr 2001 15:18:34 -0600
Jimmy,

The type of input file you have created in storms.txt is a SHIP
format surface file. That is, you have station ID's that move with
time (different slat/slon possitions for the same station id).

So, start with creating a ship format file:

 SFOUTF   = storms1.gem
 SFPRMF   = wind
 STNFIL   =  
 SHIPFL   = y
 TIMSTN   = /500
 SFFSRC   =  
 GEMPAK-SFCFIL>r

Now you can use sfedit to read the data into the file.
Note that SFCFIL used only WIND as an expected parameter. That is
because slat and slon are already part of the surface file.

 SFEFIL   = storms.txt
 SFFILE   = storms1.gem
 GEMPAK-SFEDIT>r

 SFEDIT PARAMETERS: 

 Edit file:           storms.txt                                                
                                                                      
 Output surface file: storms1.gem                                               
              

 Parameters to be added to file:

 SLAT SLON WIND

Now your data is in a ship format surface file. I can list it like:
 SFFILE   = storms1.gem
 AREA     = dset
 DATTIM   = all
 SFPARM   = dset
 OUTPUT   = t
 IDNTYP   = stid
 GEMPAK-SFLIST>r
 PARM = WIND                                                                    
 

    STN    YYMMDD/HHMM      WIND
   BONN    980819/1200     25.00
   DANI    980819/1200     25.00
   GEOR    980819/1200     30.00
   JEAN    980819/1200     30.00
   MITC    980819/1200     30.00
   CIND    980819/1200     30.00
   DENN    980819/1200     30.00
<etc.>

Steve Chiswell
Unidata User Support

On Wed, 11 Apr 2001, J. Correia wrote:

> hi again-
> btw...thanks for all your help...the diagnostic calculations worked
> great..
> now on to creating data files in gempak
> my file storms.txt cant be opened by the sfedit program...i did get an
> earlier version of this file to open, but no data was written to the
> gempak file...
> i searched the archives and found one email where the user had siimiliar
> data and her file wouldnt open either...but i never saw a solution...as
> you were able to open and plot her data...
> any thoughts?
> thanks again.
> jimmyc
> 
>