[ncl-talk] Attempting to read output *.hdf or *.nc files

[Dennis Shea]

I have no idea why you are having issues.

  dirhdf = "./"
  filhdf = "test.regional.hdf"
  pthhdf = dirhdf+filhdf
  fhdf   = addfile(pthhdf, "r")

  gbin_hdf = fhdf->GBIN
  printVarSummary(gbin_hdf)
  printMinMax(gbin_hdf,0)

  dirnc  = "./"
  filnc  = "test.regional.nc"
  pthnc  = dirnc+filnc
  fnc    = addfile(pthnc, "r")
  gbin_nc = fnc->GBIN
  printVarSummary(gbin_nc)
  printMinMax(gbin_nc,0)

====================== OUTPUT==============
Variable: *gbin_hdf*
Type: float
Total Size: 422500 bytes
            105625 values
Number of Dimensions: 2
Dimensions and sizes: [lat | 325] x [lon | 325]
Coordinates:
            lat: [40..46]
            lon: [-80..-71]
Number Of Attributes: 3
  _FillValue : 9.96921e+36
  long_name : BINNED_AVERAGE_Optical_Depth_047_grid1km
  hdf_name : GBIN
(0) BINNED_AVERAGE_Optical_Depth_047_grid1km : min=0   max=0.595

Variable: *gbin_nc*
Type: float
Total Size: 422500 bytes
            105625 values
Number of Dimensions: 2
Dimensions and sizes: [lat | 325] x [lon | 325]
Coordinates:
            lat: [40..46]
            lon: [-80..-71]
Number Of Attributes: 2
  _FillValue : 9.96921e+36
  long_name : BINNED_AVERAGE_Optical_Depth_047_grid1km
(0) BINNED_AVERAGE_Optical_Depth_047_grid1km : min=0   max=0.595



On Tue, Dec 17, 2019 at 1:18 PM Herb, Jason via ncl-talk <ncl-talk at ucar.edu>
wrote:

> Hello,
>
> I am attempting a climatology of modis data based on monthly output files.
> I have montly output netcdf and hdf files from 2002 to 2015. I have tried
> to single file read (ex the month of Jan 2006 it has only the lat, lon and
> the monthly averaged aod data "GBIN" ) to display that months average data
> to make sure the file is being read properly. Unfortunately NCL is not able
> to read either of the hdf or nc files. I have tried to ncl_filedump on the
> hdf files and outputs the lat and lon when selected but can not find the
> GBIN data, however if I run the ncl_filedump on the nc file I can see the
> full dataset when selected. Any suggestions as to how i can feed this data
> in to a script so NCL can understand to process.
>
> Thanks,
> Jason
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