netcdf files/d218000/VHcovar.nc {
  dimensions:
    time = UNLIMITED;   // (12 currently)
    plev = 9;
    lat = 73;
    lon = 144;
    nb = 2;
  variables:
    double time(time=12);
      :name = "time";
      :long_name = "Time";
      :standard_name = "time";
      :units = "months since 1978-10-01 00:00:00.0 +0:00";
      :calendar = "standard";
      :climatology = "climatology_bounds";

    double climatology_bounds(time=12, nb=2);

    float plev(plev=9);
      :name = "plev";
      :long_name = "Pressure level";
      :standard_name = "air_pressure";
      :units = "mbar";
      :axis = "Z";
      :positive = "down";

    float lat(lat=73);
      :name = "lat";
      :long_name = "Latitude";
      :standard_name = "latitude";
      :units = "degree_north";
      :valid_range = -90.0f, 90.0f; // float

    float lon(lon=144);
      :name = "lon";
      :long_name = "Longitude";
      :standard_name = "longitude";
      :units = "degree_east";
      :valid_range = 0.0f, 360.0f; // float

    int num_yrs(time=12, plev=9);
      :name = "num_yrs";
      :long_name = "Actual number of years used in climatology";

    double V_H_var(time=12, plev=9, lat=73, lon=144);
      :name = "V_H_var";
      :long_name = "Covariance of the V component of the wind and geopotential height";
      :units = "m2/s";
      :cell_methods = "time: covariance within years time: mean over years";

  // global attributes:
  :Conventions = "CF-1.7";
  :Description = "The Climate Diagnostics Data Base base period mean dataset consists of grand means for each calendar month. The base period spans the period from October 1978 to September 1985. Therefore, seven complete years of monthly data were available. However, the means for many fields were computed using less than seven years of data either because of data unavailability or errorneous fields that were detected during quality control. Please see the \"num_yrs\" variable for the specific number of means that were used to produce each individual climatology grid";
}