netcdf files/d090000/2D/1949/SFCRsfc.4902 {
  dimensions:
    lon = 192;
    lat = 94;
    time = 112;
  variables:
    int GaussianLatLon_Projection;
      :grid_mapping_name = "latitude_longitude";
      :earth_radius = 6367470.0; // double

    float lat(lat=94);
      :units = "degrees_north";
      :gaussian_lats = "true";

    float lon(lon=192);
      :units = "degrees_east";

    double time(time=112);
      :units = "Hour since 1949-02-01T00:00:00Z";
      :standard_name = "time";
      :long_name = "GRIB forecast or observation time";
      :calendar = "proleptic_gregorian";

    double reftime(time=112);
      :standard_name = "forecast_reference_time";
      :long_name = "GRIB reference time";
      :calendar = "proleptic_gregorian";
      :units = "Hour since 1949-02-01T00:00:00Z";

    float Surface_roughness_surface(time=112, lat=94, lon=192);
      :long_name = "Surface roughness @ Ground or water surface";
      :units = "m";
      :description = "Surface roughness";
      :missing_value = NaNf; // float
      :grid_mapping = "GaussianLatLon_Projection";
      :coordinates = "reftime time lat lon ";
      :Grib_Variable_Id = "VAR_7-1-2-83_L1";
      :Grib1_Center = 7; // int
      :Grib1_Subcenter = 1; // int
      :Grib1_TableVersion = 2; // int
      :Grib1_Parameter = 83; // int
      :Grib1_Parameter_Name = "SFCR";
      :Grib1_Level_Type = 1; // int
      :Grib1_Level_Desc = "Ground or water surface";
      :Grib1_Interval_Type = -1; // int
      :Grib1_Interval_Name = "Unknown Time Range Indicator -1";

  // global attributes:
  :Originating_or_generating_Center = "US National Weather Service, National Centres for Environmental Prediction (NCEP)";
  :Originating_or_generating_Subcenter = "NCEP Reanalysis Project";
  :GRIB_table_version = "0,2";
  :Generating_process_or_model = "62 wave triangular, 28 layer Spectral model from \"Medium Range Forecast\" run";
  :file_format = "GRIB-1";
  :Conventions = "CF-1.6";
  :history = "Read using CDM IOSP GribCollection v3";
  :featureType = "GRID";
}