[ncl-talk] Joining files together with varying dimension sizes

Tue Apr 26 13:52:51 MDT 2016

What does the pc stand for?

On Tue, Apr 26, 2016 at 1:43 PM, Guilherme Martins <jgmsantos at gmail.com>
wrote:

> Try to reorder the dimensions with:
>
> *ncpdq *-a time,pc tmp1.nc tmp2.nc
>
> ncpdq is a NCO tool.
>
> Guilherme.
>
> Em ter, 26 de abr de 2016 às 16:33, Andrew Kren - NOAA Affiliate <
> andrew.kren at noaa.gov> escreveu:
>
>> I tried both just now. With CDO, it worked on some variables, because the
>> time dimension on those was in the leftmost dimension. But the others, the
>> variables I also need, has time in the rightmost dimension. Can CDO also
>> work with this?
>>
>> On Tue, Apr 26, 2016 at 1:07 PM, Guido Cioni <guidocioni at gmail.com>
>> wrote:
>>
>>> It shouldn't be a problem, along_track is still an integer as
>>> dimension... Did you try with the command suggested on the webpage that I
>>> sent you? Did you try with CDO, which sometime is smarter with
>>> “complicated" files? Otherwise you can try to open the nc file with ncl or
>>> fortran and manually modify the name of the dimensions to something more
>>> default.
>>>
>>> Are you files big? Otherwise I can have a look On them and see what it's
>>> working
>>> Il 26 apr 2016 8:58 PM, "Andrew Kren - NOAA Affiliate" <
>>> andrew.kren at noaa.gov> ha scritto:
>>>
>>> Hi Guido,
>>>
>>> I tried NCO, but it gave me this error, presumably because my time
>>> coordinate is called "along_track" and not "time". Is there a workaround
>>> for this?
>>>
>>> On Tue, Apr 26, 2016 at 11:27 AM, Guido Cioni <guidocioni at gmail.com>
>>> wrote:
>>>
>>>> Hi Andrew,
>>>> I would suggest you to merge data together BEFORE reading them into
>>>> NCL. You can easily do that either with NCO and the command ncrcat
>>>> (see here http://research.jisao.washington.edu/data_sets/nco/#example8)
>>>> or using CDO with the merge option (see here for the complete guide
>>>> https://www.rsmas.miami.edu/users/rajib/cdo.pdf). These methods will
>>>> work *without* problems as long as you have a well-defined time
>>>> coordinate in your files and the vertical levels are always the same.
>>>> Cheers
>>>>
>>>> Guido Cioni
>>>> http://guidocioni.altervista.org
>>>>
>>>>
>>>>
>>>>
>>>> Il giorno 26 apr 2016, alle ore 19:22, Andrew Kren - NOAA Affiliate <
>>>> andrew.kren at noaa.gov> ha scritto:
>>>>
>>>> Dear NCL Talk,
>>>>
>>>> I have data that is netcdf format of various aircraft microwave
>>>> retrievals. These retrievals of temperature, moisture, etc, are in units of
>>>> (lev,time) in each file. I want to join all of the files together so that I
>>>> can compare the data to dropsondes. However, when I do the addfiles
>>>> feature, and grab the data using temp_hamsr = factor*(short2flt(q[:]->ham_airT))-273.15,
>>>> it gives me this error:
>>>>
>>>> warning:File
>>>> /scratch4/BMC/shout/Andrew.Kren/hamsr_data/2011/HS3/L2/HAMSR_L2_20110908T185915_20110909T185423_v01.nc
>>>> dimension sizes do not conform to others in list; skipping file
>>>> warning:A valid instance of variable ham_airT was not found in one or
>>>> more elements of the file list
>>>>
>>>> I know what this error means after looking it up online and on the NCL
>>>> help page. It is because my leftmost dimension is not time (level instead),
>>>> which is required to merge them together. Is there any workaround to do
>>>> this, like reorder when reading in, with what format my data is in?
>>>> Basically I want to make my code portable so I can join any number of files
>>>> for a particular storm case, since not all cases have the same amount of
>>>> time retrievals.
>>>>
>>>> I also attached an ncl_filedump output of the format of the data I am
>>>> reading. The along track metadata refers to time dimension in this case.
>>>>
>>>> Thanks,
>>>>
>>>> --
>>>> Andrew Kren, PhD
>>>> Research Scientist I, Global Observing Systems Analysis (GOSA) Group
>>>> NOAA ESRL Global Systems Division (Rm 3C515)
>>>> 325 Broadway, Boulder, CO 80305
>>>> (303) 497-5418
>>>> <format_file.txt><compare_AVAPS_HAMSR_HS3_2011.ncl>
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>>>>
>>>>
>>>
>>>
>>> --
>>> Andrew Kren, PhD
>>> Research Scientist I, Global Observing Systems Analysis (GOSA) Group
>>> NOAA ESRL Global Systems Division (Rm 3C515)
>>> 325 Broadway, Boulder, CO 80305
>>> (303) 497-5418
>>>
>>>
>>
>>
>> --
>> Andrew Kren, PhD
>> Research Scientist I, Global Observing Systems Analysis (GOSA) Group
>> NOAA ESRL Global Systems Division (Rm 3C515)
>> 325 Broadway, Boulder, CO 80305
>> (303) 497-5418
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
> --
>
> ------------------------------------------------------------------------------------------
> Dr. Guilherme Martins
> Instituto Nacional de Pesquisas Espaciais (INPE)
> Centro de Previsão de Tempo e Estudos Climáticos (CPTEC)
> Grupo de Desenvolvimento em Assimilação de Dados (GDAD)
> Telefone (INPE/CP): +55 12 3186-8551 || Celular (TIM): +55 12 98152-8580
> E-mail: guilherme.martins at inpe.br || jgmsantos at gmail.com
> Skype: guilherme.martins.
> Homepage: https://sites.google.com/site/jgmsantos
> Currículo Lattes: http://lattes.cnpq.br/5997657584785803
>
> ------------------------------------------------------------------------------------------
>

-- 
Andrew Kren, PhD
Research Scientist I, Global Observing Systems Analysis (GOSA) Group
NOAA ESRL Global Systems Division (Rm 3C515)
325 Broadway, Boulder, CO 80305
(303) 497-5418
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