[ncl-talk] Regarding writing netcdf file.

[arshitha anand]

Many thanks to Shea and Dave.

On Fri, Jul 5, 2019 at 12:13 AM Dennis Shea <shea at ucar.edu> wrote:

> PLEASE READ:  *http://www.ncl.ucar.edu/Applications/method_1.shtml*
> <http://www.ncl.ucar.edu/Applications/method_1.shtml>
>
> As noted by Dave Allured:
>
>    rh = ....
>    rh at long_name = "Relative Humidity"   ; @ to associate attribute with a
> variable
>    rh at units = "%"
>
>     dir_nc = "./"                       ; output directory  [  ./  ] is
> current directory
>     fil_nc  = "RH_WRF.nc"
>     pth_nc = dir_nc+fil_nc
>
>     *system*
> <http://www.ncl.ucar.edu/Document/Functions/Built-in/system.shtml>("/bin/rm
> -f "+pth_nc) ; explicitly remove any pre-existing file
>     ncdf = addfile (pth_nc,"c")
>
>     f->RHUM = rh
>
> ========
> Likely, you have to add XLAT, XLONG, TIME variables also.
>
> On Thu, Jul 4, 2019 at 12:02 PM Dave Allured - NOAA Affiliate via ncl-talk
> <ncl-talk at ucar.edu> wrote:
>
>> Arshitha,
>>
>> Here is the simplest possible way to write a netcdf file with one
>> attribute.  Try this first.  Use ncdump -h to inspect your output file.
>> Suppose you already calculated a variable named "rh" in NCL.
>>
>>     f = addfile ("filename.nc","c")
>>     rh at att1 = "test"
>>     f->rhum = rh
>>     exit
>>
>> For more details, please see this documentation:
>> https://www.ncl.ucar.edu/Applications/method_1.shtml
>>
>> --Dave
>>
>>
>> On Thu, Jul 4, 2019 at 9:29 AM arshitha anand via ncl-talk <
>> ncl-talk at ucar.edu> wrote:
>>
>>> Dear all,
>>>
>>> I have an inssue in writing netcdf file.
>>> I calculated relative humidity from wrf ouput file. Then I need to write
>>> it as a netcdf file.
>>> Does anyone know  how to define the attribute  and also, how can I write
>>> it as a netcdf file.
>>>  Kindly note my script, attached below.
>>>
>>> Thank you for your suggestions in advance.
>>>
>>> --
>>> *Regards,*
>>>
>>> *Arshitha Anand K A*
>>> Project Associate
>>> Department of civil engineering
>>> Indian Institute of Technology Madras
>>> Chennai - 600036
>>>
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>
>

-- 
*Regards,*

*Arshitha Anand K A*
Project Associate
Department of civil engineering
Indian Institute of Technology Madras
Chennai - 600036
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