[ncl-talk] how to export to NETCDF a variable processed in NCL ?

[Luiz Octavio Fabricio dos Santos]

Thanks Jonathan!, I'll check it out.

Em qui., 29 de out. de 2020 às 02:38, Buzan, Jonathan <jbuzan at purdue.edu>
escreveu:

> Hi Luiz,
>
> Please see the ncl manual.
> http://www.ncl.ucar.edu/Applications/write_netcdf.shtml
>
> -Jonathan
>
>
>
> > On Oct 29, 2020, at 7:01 AM, Luiz Octavio Fabricio dos Santos via
> ncl-talk <ncl-talk at mailman.ucar.edu> wrote:
> >
> > Hello, I have calculated the correlation between precipitation anomalies
> and sea surface temperature anomalies.
> > And I would like to export the variable with the correlation and
> significance values to a new NETCDF file.
> > How export variables r and sig for a new NETCDF file?
> > Can anybody help me? Thank you very much in advance.
> >
> > begin
> >
> >     f = addfile("Grid_Data/GPCP/aprecip_anomalia_temporal_DJF.nc", "r")
> >     g = addfile("Grid_Data/ERSSTV5/nino34_DJF.nc", "r")
> >
> >     ;get variables
> >     ppt = f->precip
> >     asst = g->asst
> >
> >     ; Fix missing values
> >     asst at _FillValue = 9.96921e36
> >     asst at missing_value = 9.96921e36
> >
> >     ppt at _FillValue = 9.96921e36
> >     ppt at missing_value = 9.96921e36
> >
> >
> >     x = ppt(:,:,:) ; grid data
> >     y = asst(:,0,0) ; time series
> >
> >     ; Calculate correlation between variables
> >     r = escorc_n(x,y,0,0)
> >
> >     ; get coordinates
> >     var = x(0,:,:)
> >     copy_VarCoords(var,r)
> >
> >     ; Get size of dimensions
> >     dim = dimsizes(ppt)
> >     ;Get size of dimension time
> >     nt = dim(0)
> >
> >     ;Significance Test
> >     sig = rtest(r,nt,0)
> >     ;printVarSummary(sig)
> >
> >     ; get coordinates
> >     copy_VarCoords(var,sig)
> >     ;printVarSummary(sig)
> >
> > end
> > ;====================================================
> > Variable: ppt
> > Type: float
> > Total Size: 4852224 bytes
> >             1213056 values
> > Number of Dimensions: 3
> > Dimensions and sizes:   [time | 117] x [lat | 72] x [lon | 144]
> > Coordinates:
> >             time: [   0..14213]
> >             lat: [-88.75..88.75]
> >             lon: [1.25..358.75]
> > Number Of Attributes: 2
> >   _FillValue :  9.96921e+36
> >   missing_value :       9.96921e+36
> > ncl 39>
> > ;=================================================
> > printVarSummary(sig)
> > Variable: sig
> > Type: float
> > Total Size: 41472 bytes
> >             10368 values
> > Number of Dimensions: 2
> > Dimensions and sizes:   [lat | 72] x [lon | 144]
> > Coordinates:
> >             lat: [-88.75..88.75]
> >             lon: [1.25..358.75]
> >  ;=============================================
> >
> >  printVarSummary(r)
> >
> > Variable: r
> > Type: float
> > Total Size: 41472 bytes
> >             10368 values
> > Number of Dimensions: 2
> > Dimensions and sizes:   [lat | 72] x [lon | 144]
> > Coordinates:
> >             lat: [-88.75..88.75]
> >             lon: [1.25..358.75]
> > Number Of Attributes: 1
> >   _FillValue :  9.96921e+36
> > ;===================================================================
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>

-- 
*Luiz Octavio Fabricio dos Santos*

Bacharel em Engenharia Ambiental pela Universidade Federal do Amazonas -
UFAM

Mestrando no Programa de Pós Graduação em Fisica Ambiental pela
Universidade Federal de Mato Grosso - UFMT/PPGFA.

Integrante do Grupo de Pesquisa Interação Biosfera Atmosfera da
Universidade Federal de Mato Grosso - GPIBA/UFMT.


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