[gradsusr] write in netcdf format

[lpasmanoranjan]

Hello Mahakur,
Many thanks. It worked perfectly fine. I have one more question. Can’t I
extend it to more than one variable, e.g. u, v, t2 in one netcdf file?

Mano

On Sat, Nov 23, 2019 at 16:37 M.Mahakur <mmahakur at tropmet.res.in> wrote:

> You can set sdfwrite with option -3dz, if your grads is 2.1.a2+
> Please see the online doc, I have pasted the relevant lines here..
>
>
> The -3dz,-3dt,-rt and -re options are available in version 2.1.a2+.
>
> set sdfwrite <-3dz or -3dt or -4d or -5d> <-rt or -re> <-flt or -dbl>
> <-nc3 or -nc4> <-chunk> <-zip> *fname*
>
> where
>
> *fname*    output filename (required)
>
> The following six optional arguments are not enabled by default; each new
> call to set sdfwrite
> <http://cola.gmu.edu/grads/gadoc/gradcomdsetsdfwrite.html> will turn them
> off if they are not included. The default behavior is to write out a
> variable with the same number of varying dimensions as the defined variable
> and with no record (unlimited) dimension.
> -3dt
>
>    forces the output data file to have at least 3 coordinate dimensions
>       (lon, lat, and time)
>
>
> -3dz
>
>    forces the output data file to have at least 3 coordinate dimensions
>       (lon, lat, and lev)
>
>
> -4d
>
>    forces the output data file to have at least 4 coordinate dimensions
>       (lon, lat, lev, and time)
>
>
> -4e
>
>    forces the output data file to have at least 4 coordinate dimensions
>       (lon, lat, time, and ens)
>
>
> -5d
>
>    forces the output data file to have 5 coordinate dimensions (lon, lat,
>       lev, time, and ens)
>
>
> -rt
>
>    sets the T axis as the record (unlimited) dimension
>
>
> -re
>
>    sets the E axis as the record (unlimited) dimension
>
>
> ------------------------------
> *From: *"lpasmanoranjan" <lpasmanoranjan at gmail.com>
> *To: *"GrADS Users Forum" <gradsusr at gradsusr.org>
> *Sent: *Saturday, November 23, 2019 11:49:48 AM
>
> *Subject: *Re: [gradsusr] write in netcdf format
>
> Dear Jha and Dash,
> CDO does not work!! I am getting the following error:
>
> $> cdo -f nc import_binary data.ctl data.nc
> Open Error: Unknown keyword in description file
> --> The invalid description file record is:
> --> pdef 38 28 lcc 46.00 5.00 19.00 14.00 30.00 60.00 5.00 60000. 60000.
> The data file was not opened.
> cdo import_binary (Abort): Open failed!
>
>
> Dear Mahakud,
> As per your suggestion, I can save only one variable at one level with x
> and y varying. How about varying the Z-dimension?
>
> Thank you Jha, Dash and Mahakur for your prompt suggestions.
>
>
> On Sat, 23 Nov 2019 at 15:02, M.Mahakur <mmahakur at tropmet.res.in> wrote:
>
>> replace newvars=vars
>> with
>> newvars=u (for example)
>>
>> you can write only one variable in a single netCDF.
>>
>> ------------------------------
>> *From: *"Itesh Dash" <itesh.dash at gmail.com>
>> *To: *"GrADS Users Forum" <gradsusr at gradsusr.org>
>> *Sent: *Saturday, November 23, 2019 10:58:53 AM
>> *Subject: *Re: [gradsusr] write in netcdf format
>>
>> Use cdo to convert. Simple and easy. Follow the link below.
>>
>> https://code.mpimet.mpg.de/boards/1/topics/213
>>
>>
>>
>>
>> On Sat, Nov 23, 2019, 11:02 AM lpasmanoranjan <lpasmanoranjan at gmail.com>
>> wrote:
>>
>>> Dear Users,
>>> I have a dataset (.DAT format with a .ctl file). I would like to write
>>> it in netcdf format. My dataset have multiple variables with various level.
>>> Following are the details in my .ctl file:
>>>
>>> xdef  100 linear 55   0.2
>>> ydef  200 linear 60   0.2
>>> zdef   11 levels 1000 925 900 850 700 500 300 200 150 100 50
>>> tdef  120 linear 00Z15May2012     1hr
>>> VARS   5
>>> U             11 0  x-wind component (m s-1)
>>> V             11 0  y-wind component (m s-1)
>>> W             11  0  z-wind component (m s-1)
>>> Q2             1  0  QV at 2 M (kg kg-1)
>>> T2             1  0  TEMP at 2 M (K)
>>> My grads script to write my data in netcdf format is:
>>>
>>> 'open data.ctl'
>>> 'set time 00z15May2012 23z20May2012'
>>> 'set gxout fwrite'
>>> 'define newvars=vars'
>>> 'set sdfwrite data.nc'
>>> 'sdfwrite newvars
>>> 'quit'
>>>
>>> This script is not working.
>>> Any help please??
>>>
>>> Thank you in advance.
>>> Kind Regards,
>>> Mano
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>
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>
>
> --
> Kind Regards,
> Mano
>
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-- 
Kind Regards,
Mano
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