[ncl-talk] How can I plot QNICE in WRF output file?

[Bill Ladwig]

Hi Fangda,

The first step is to look at your data. Are you sure QNICE is a variable in
your WRF output file? Don't assume. Use the 'ncdump -h your_wrf_file'
command or ncl_filedump (
https://www.ncl.ucar.edu/Document/Tools/ncl_filedump.shtml) to look at the
contents of your WRF file. If you don't see QNICE in there, you won't be
able to read it. The absence or presence of variables in the output file is
determined by your WRF configuration and also how you have your registry
set up. I don't remember QNICE being one that is written out by default, so
you might need to modify the registry, rebuild, and re-run if it's not
there.

Hope this helps,

Bill

On Wed, Apr 18, 2018 at 7:49 AM, Fangda <tengfangda at gmail.com> wrote:

> Hello Everyone
>
> When I use wrf_user_getvar function to deal with Ice Number concentration
> in wrfout files, I get this message:
>
> fatal:No valid instance of variable QNICE found in file list
>> fatal:["Execute.c":8640]:Execute: Error occurred at or near line 662 in
>> file /usr/local/ncl6.4.0/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
>> fatal:["Execute.c":8640]:Execute: Error occurred at or near line 1716 in
>> file /usr/local/ncl6.4.0/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
>
>
> Does it mean I cann't read QNICE using this function? How can I read QNICE
> in WRF output file with ncl?
>
> I appreciate your help, thanks.
>
> Fangda
>
>
>
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