[ncl-talk] Unable to generate plot from Lambert_conformal grid data

[Adam Phillips]

Hi Debasish,
As a reminder, please do not write to any ncl-talk contributor directly
unless asked to do so. This way the community can see the complete
discussion.
The ftp site seemingly works for some people but fails for others, and
there unfortunately is nothing that can be done about it. The best way
forward is for ncl-talk participants to reduce the size of their data file
to a size less than 15MB, and to email the file to ncl-talk, as you have
done here.

With regards to the file you sent (simple2.nc): The file does not include
variables that are needed to correctly plot the data. For example, the lat
and lon arrays were not included. Please include the first 8 variables
shown in your ncdump output shown in your original message.

Finally, you say the plot did not work, but ncl-talk needs more information
to be able to help. What did not work? Was a plot created? If so, was the
data displayed incorrectly? Were there any error messages returned to the
terminal? If so, what were they?

Unfortunately, less folks are participating in ncl-talk discussions, and
there are no longer any NCAR staff that are paid to respond. The more
information users provide in initial ncl-talk queries, the cleaner/easier
the included script is to inspect, the better the odds are that the query
will be answered.
Adam



On Wed, Nov 9, 2022 at 11:11 AM Debasish Hazra <debasish.hazra5 at gmail.com>
wrote:

> I am not able to put the full data file on ucar ftp. But extracted the
> variable in 2D and attached in the email.
> Thanks
> Debasish
>
> On Wed, Nov 9, 2022 at 10:55 AM Debasish Hazra <debasish.hazra5 at gmail.com>
> wrote:
>
>> Thanks Adam, unfortunately It did not work. I have attached a tried
>> script . I ma trying to put data in ftp, using this link
>> https://www.ncl.ucar.edu/ftp_files.shtml .But is not working.
>> Any help is appreciated.
>> Thanks,
>> Debasish.
>>
>> On Mon, Nov 7, 2022 at 4:28 PM Adam Phillips <asphilli at ucar.edu> wrote:
>>
>>> Hi Debasish,
>>> I do not have any experience working with lambert_conformal gridded
>>> data, but looking at your ncdump output there are variables named lat and
>>> lon that are 2D variables that I think you can use to plot the data
>>> directly using the lat2d/lon2d assignment method.
>>> I would try this:
>>>
>>> dustsfc = flt2dble(a1->dust)
>>> lev = a1->pfull
>>> dustsfc2 at lat2d = a1->lat
>>> dustsfc2 at lon2d = a1->lon
>>> labes = (/"Dust conc(ug/kg) at surface : 00FH"/)
>>>
>>>  wks_type = "png"
>>> ..... (continue using the rest of your script)
>>>
>>> If that does not work I would recommend creating a new netCDF file that
>>> only contains a single 3D variable, along with the first 8 variables shown
>>> in your ncdump output (pfull->lat), and send that new file to the ncl-talk
>>> email list. Include your most recent script and any error messages that you
>>> are getting as well.
>>> Good luck,
>>> Adam
>>>
>>> On Mon, Nov 7, 2022 at 12:35 PM Debasish Hazra via ncl-talk <
>>> ncl-talk at mailman.ucar.edu> wrote:
>>>
>>>> Hi,
>>>> I am trying to plot variable which is in lambert_conformal grid, but I
>>>> am not able to generate the plot. Attached is ncl_filedump and ncl
>>>> script.Can anyone point out how to do it. Thanks
>>>>
>>>> Debasish.
>>>> _______________________________________________
>>>> ncl-talk mailing list
>>>> ncl-talk at mailman.ucar.edu
>>>> List instructions, subscriber options, unsubscribe:
>>>> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>
>>>
>>>
>>> --
>>> Adam Phillips
>>> Associate Scientist IV, Climate Analysis Section
>>> Climate and Global Dynamics Laboratory
>>> National Center for Atmospheric Research
>>> www.cgd.ucar.edu/staff/asphilli/
>>>
>>> <http://www.cgd.ucar.edu/staff/asphilli>
>>>
>>

-- 
Adam Phillips
Associate Scientist IV, Climate Analysis Section
Climate and Global Dynamics Laboratory
National Center for Atmospheric Research
www.cgd.ucar.edu/staff/asphilli/

<http://www.cgd.ucar.edu/staff/asphilli>
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