[gradsusr] Displaying a .nc file

[David Stanfel]

It did prompt a list of variables including u, v, w, and z. It still
doesn't want to display them.

ga-> q file

File 1 : 6 Months Sample Model Output

  Descriptor: cont.ctl

  Binary: atmos_month.nc.0000

  Type = Gridded

  Xsize = 96  Ysize = 80  Zsize = 18  Tsize = 804  Esize = 1

  Number of Variables = 7

     u  18  0  u

     v  18  0  v

     w  18  0  v

     t  18  0  v

     sh  18  0  v

     rh  18  0  v

     z  18  0  v

ga-> d v

Data Request Error:  Error for variable 'v'

  Error ocurred at column 1

DISPLAY error:  Invalid expression

  Expression = v

ga-> d sh

Error: Variable sh not in netcdf file

Data Request Error:  Error for variable 'sh'

  Error ocurred at column 1

DISPLAY error:  Invalid expression

  Expression = sh

Thanks,

David


On Wed, Jun 18, 2014 at 11:58 PM, James T. Potemra <jimp at hawaii.edu> wrote:

>  If you enter "q file" at the GrADS prompt it should list the variables.
>
>
> On 6/18/14 5:52 PM, David Stanfel wrote:
>
> How do I know what variable name will work? I've tried u, v, w, and z and
> still only get:
>
>  ga-> d v
>
> Error: Variable v not in netcdf file
>
> Data Request Error:  Error for variable 'v'
>
>   Error ocurred at column 1
>
> DISPLAY error:  Invalid expression
>
>   Expression = v
>
>  Thanks,
>
>  David
>
>
> On Wed, Jun 18, 2014 at 11:13 PM, Hosmay Lopez <hlopez at rsmas.miami.edu>
> wrote:
>
>>  David,
>>
>> You should let GrADS know that the file is a netCDF. You do that by
>> adding the following text line in your control file:
>>
>> DTYPE netcdf
>>
>> Insert such after the UNDEF line.
>>
>> Good luck!
>>
>>   Hosmay Lopez
>> UM/CIMAS/RSMAS NOAA/AOML/PHOD
>> 4301 Rickenbacker Causeway,
>> Miami, FL 33149, USA
>> Phone: (305) 361-4329 <%28305%29%20361-4329>
>>
>>    ------------------------------
>> *From:* gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] on
>> behalf of David Stanfel [dstanfel at ualberta.ca]
>> *Sent:* Wednesday, June 18, 2014 10:58 PM
>> *To:* GrADS Users Forum
>> *Subject:* [gradsusr] Displaying a .nc file
>>
>>   So I figured out how to use a descriptor file but I am still having
>> troubles opening the file. My descriptor file is as follows:
>>
>>  DSET   ^atmos_month.nc.0000
>> UNDEF  1.e-10
>> TITLE 6 Months Sample Model Output
>> *
>> XDEF 96 LINEAR  0.0   3.75
>> *
>> YDEF 80 GAUSR30 1
>> *
>> ZDEF 18 LEVELS  1000 950 900 850 800 750 700 650 600 550 500 450 400 350
>> 300
>> 250 200 150
>> *
>> TDEF 804  LINEAR JAN0 1MO
>> *
>> VARS 7
>> u   18   0  u
>> v   18   0  v
>> w   18   0  v
>> t   18   0  v
>> sh   18   0  v
>> rh   18   0  v
>> z   18   0  v
>> ENDVARS
>>
>>  It was able to open it without issue:
>>
>>  ga-> open cont.ctl
>>
>> Scanning description file:  cont.ctl
>>
>> Data file atmos_month.nc.0000 is open as file 1
>>
>> LON set to 0 360
>>
>> LAT set to -88.29 88.29
>>
>> LEV set to 1000 1000
>>
>> Time values set: 0:1:1:0 0:1:1:0
>>
>> E set to 1 1
>>
>>
>>  However, I am having trouble displaying the data. I tried to use the
>> display command (d) with this result:
>>
>>
>>  ga-> d atmos_month.nc.0000
>>
>> Syntax error: Bad file number for variable atmos_month
>>
>>   Error ocurred at column 1
>>
>> DISPLAY error:  Invalid expression
>>
>>   Expression = atmos_month.nc.0000
>>
>>
>>  Is my syntax off?
>>
>>
>>  Thanks,
>>
>>
>>  David
>>
>> _______________________________________________
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>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
>
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