[gradsusr] Help new to grads

[bob duker]

Hello all,

I have a plt_snw.clt file and a snow2010.gdf file on my desktop, But when I
open grades, tell it landscape, and type
open plt_snw.clt
It says
Scanning Description file: plt_snw.clt
OPEN ERROR: can't open description file

I just downloaded grades 2.0.a7.oga.3 self extracting widows version  last
night and haven't done anything to it yet. I'm using windows 7 64 bit.
Is there something I'm missing?
Thanks,
Bob




On Wed, May 5, 2010 at 1:08 AM, bob duker <dukerbob at gmail.com> wrote:

> Hello All,
> I'm doing snow Research and looking for a program to covert the climate
> prediction center (CPC) Northern Hemosphere raw weekly snow data (in 1's and
> 0's) into a useable number. I don't have much coding experience or computer
> science background, so i'm not sure how to covert the data myself, or what
> program to use. Also I don't have any fortran compiler. The CPC does covert
> the data into a nice table format, but they don't keep it up todate. Their
> website is http://www.cpc.ncep.noaa.gov/data/snow/. On their website they
> have a link to grads.
>
> The program they give for reading weekly 89*89 snow data is
>
> PROGRAM AREA
> C*********************************************************************
> C
> C THIS PROGRAM SIMPLY READS IN THE SNOW DATA AND
> C WRITES IT OUT FOR A GIVEN YEAR.
> C
> C VARIABLES:
> C
> C    ISNDAT - 89 X 89 SNOW DATA
> C
> C FILES:
> C
> C    A YEAR OF WEEKLY SNOW DATA IS STORED IN A FILE WITH
> C    THE NAMING CONVENTION:
> C
> C wk19xx   xx - is the year (ex. wk1973)
> C
> C*********************************************************************
>
>       DIMENSION ISNDAT(89,89)
>       CHARACTER*1 ICHAR1,ICHAR2
>       OPEN(11,FILE='INFILE',
>      *   FORM='FORMATTED',ACCESS='SEQUENTIAL')
>       OPEN(12,FILE='OUTFILE',
>      *   FORM='FORMATTED',ACCESS='SEQUENTIAL')
>        DO 199 LP = 1,52
> C*********************************************************************
> C
> C READS IN THE WEEKLY SNOW DATA.
> C
> C*********************************************************************
>         DO 200 I = 1,89
>         READ(11,100,END=10) IYEARS,IWKS,IROW,ICHAR1,(ISNDAT(I,J),J=1,45)
>   100    FORMAT (I4,2I2,A1,45I1)
>         READ(11,101,END=10)IYEARS,IWKS,IROW,ICHAR2,(ISNDAT(I,J),J=46,89)
>   101    FORMAT (I4,2I2,A1,44I1)
> C*********************************************************************
> C
> C WRITE OUT THE WEEKLY SNOW DATA.
> C
> C*********************************************************************
>          WRITE(12,100) IYEARS,IWKS,IROW,ICHAR1,(ISNDAT(I,J),J=1,45)
>          WRITE(12,101) IYEARS,IWKS,IROW,ICHAR2,(ISNDAT(I,J),J=46,89)
>   200   CONTINUE
> READ(11,102) ICONST
>   102    FORMAT(I4)
> WRITE(12,102) ICONST
> C
>   199   CONTINUE
>    10   CONTINUE
> 999     STOP
>          END
>
> I'm using windows 7 64bit operating system. My question is how do i use
> grads to view the snow data or is there a fortran compiler the above program
> will work on that i should use instead?
> Thanks,
> Bob R Duke
>
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