Dear all,

 I had downloaded a netcdf ERA5 reanalysis data from the ECMWF.

I made some attempt to open/read such this file inside IDL V6.2 under windows system.

Unfortunately, I failed.

I will be appreciate  any one help me and have some tips to open/read such this data inside IDL V6.2 in

windows system.

Best Regards

Khaled

2 Comments

  1. Kevin Marsh

    Hi Khaled,

    What error message do you get? can you share the code you are using?

    Thanks,

    Kevin

    1. Khaled Megahed

      Dear Kevin,

      here is the code I wrote..

      =========

      pro Open_read_ERA5_nc

      filename='C:\Users\Khaled Tahoon\Desktop\NC\Era5_Reanalysis_hourly_19-7-2012.nc'
      failname = NCDF_EXISTS()
      help,filename, /structure
      ; Open the netCDF file:
      id = NCDF_OPEN('filename')
      ; Get the variable ID for variable "Era5_Reanalysis_hourly_19-7-2012":
      varid = NCDF_VARID(filename, 'Era5_Reanalysis_hourly_19-7-2012')
      d_lev= ncdf_varid(varid,"lev")
      print, d_lev
      print, n_elements(filename.lev), n_elements(filename.lat), n_elements(filename.lon), n_elements(filename.time)
      print, filename.level
      print, filename.data
      print, filename.lon
      print, filename.lat
      NCDF_CLOSE, filename

      end

      ===========

      this is the following error

      Compiled module: OPEN_READ_ERA5_NC
      IDL> .CONTINUE
      NCDF_VARID: 1 is not a valid cdfid.
      Execution halted at: OPEN_READ_ERA5      

      7 C:\Users\Khaled Tahoon\Desktop\NC\open_read_era5.pro
                           $MAIN$          

      =======

      Khaled


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