netcdf files/d633002/e51.oper.an.pl/200202/e51.oper.an.pl.128_138_vo.ll025sc.2002021200_2002021223.nc {
  dimensions:
    latitude = 721;
    level = 37;
    longitude = 1440;
    time = UNLIMITED;   // (24 currently)
  variables:
    float VO(time=24, level=37, latitude=721, longitude=1440);
      :long_name = "Vorticity (relative)";
      :short_name = "vo";
      :units = "s**-1";
      :original_format = "WMO GRIB 1 with ECMWF local table";
      :ecmwf_local_table = 128; // int
      :ecmwf_parameter = 138; // int
      :_FillValue = 9.999E20f; // float
      :missing_value = 9.999E20f; // float
      :minimum_value = -0.0013144941f; // float
      :maximum_value = 0.0015037195f; // float
      :grid_specification = "0.25 degree x 0.25 degree from 90N to 90S and 0E to 359.75E (721 x 1440 Latitude/Longitude)";
      :original_data_representation = "Spherical harmonics (T639)";
      :rda_dataset = "ds633.2";
      :rda_dataset_url = "https:/rda.ucar.edu/datasets/ds633.2/";
      :rda_dataset_doi = "DOI: 10.5065/CBTN-V814";
      :rda_dataset_group = "ERA5.1 atmospheric pressure level analysis [netCDF4]";
      :number_of_significant_digits = 7; // int
      :_ChunkSizes = 1U, 37U, 721U, 1440U; // uint

    double latitude(latitude=721);
      :long_name = "latitude";
      :short_name = "lat";
      :units = "degrees_north";
      :_ChunkSizes = 721U; // uint

    double level(level=37);
      :long_name = "pressure level";
      :short_name = "plev";
      :units = "hPa";
      :alternate_units = "millibar";
      :_ChunkSizes = 37U; // uint

    double longitude(longitude=1440);
      :long_name = "longitude";
      :short_name = "lon";
      :units = "degrees_east";
      :_ChunkSizes = 1440U; // uint

    int time(time=24);
      :long_name = "time";
      :units = "hours since 1900-01-01 00:00:00";
      :calendar = "gregorian";
      :_ChunkSizes = 1024U; // uint

    int utc_date(time=24);
      :long_name = "UTC date yyyy-mm-dd hh:00:00 as yyyymmddhh";
      :units = "Gregorian_year month day hour";
      :_ChunkSizes = 1024U; // uint

  // global attributes:
  :DATA_SOURCE = "Downloaded by CISL DECS/RDA from ECMWF\"s Meteorological Archival and Retrieval System (MARS): ERA5.1 GRIB 1 data (T639 Spherical harmonics and N320 reduced Gaussian data)";
  :DATA_INTERPOLATION_STAGE_I = "Performed by CISL DECS/RDA: ERA5.1 GRIB 1 T639/N320 data interpolated (or synthesized) to 1280 longitude x 640 Gaussian latitude GRIB 1 gridded data using emoslib-4.3.9 (compiled with cmake with grib_api-1.14.7 and fftw-3.3.7 support for gnu/gfortran-7.3.0).";
  :DATA_INTERPOLATION_STAGE_II = "Performed by CISL DECS/RDA: CISL DECS/RDA STAGE I ERA5.1 1280 longitude x 640 Gaussian latitude GRIB 1 gridded data re-interpolated by CISL DECS/RDA to 0.25 degree 1440 x 741 regular longitude-latitude GRIB 1 gridded data using emoslib-4.3.9 (compiled with cmake with grib_api-1.14.7 and fftw-3.3.7 support for gnu/gfortran-7.3.0). A STAGE I 1280 longitude x 640 Gaussian latitude GRIB 1 gridded data file is deleted immediately after a STAGE II file is completed.";
  :NETCDF_CONVERSION = "Performed by CISL DECS/RDA: Conversion from CISL DECS/RDA STAGE II ERA5.1 0.25 degree GRIB 1 gridded data to netCDF4/HDF5.";
  :NETCDF_VERSION = "4.7.3";
  :CONVERSION_PLATFORM = "Linux r14i6n5 4.12.14-95.51-default #1 SMP Fri Apr 17 08:14:12 UTC 2020 (c6bab98) x86_64 x86_64 x86_64 GNU/Linux";
  :CONVERSION_DATE = "Tue Sep 29 08:40:20 MDT 2020";
  :Conventions = "CF-1.6";
  :NETCDF_COMPRESSION = "NCO: Precision-preserving compression to netCDF4/HDF5 (see \"history\" and \"NCO\" global attributes below for specifics).";
  :history = "Tue Sep 29 08:40:50 2020: ncks -4 --ppc default=7 e51.oper.an.pl.128_138_vo.ll025sc.2002021200_2002021223.unc.nc e51.oper.an.pl.128_138_vo.ll025sc.2002021200_2002021223.nc";
  :NCO = "netCDF Operators version 4.7.9 (Homepage = http://nco.sf.net, Code = http://github.com/nco/nco)";
}