netcdf files/d217001/uzcovar.nc {
  dimensions:
    time = UNLIMITED;   // (320 currently)
    plev = 11;
    lat = 73;
    lon = 73;
  variables:
    double time(time=320);
      :name = "time";
      :long_name = "Time";
      :standard_name = "time";
      :units = "months since 1958-01-01 00:00:00.0 +0:00";
      :calendar = "standard";

    float plev(plev=11);
      :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=73);
      :name = "lon";
      :long_name = "Longitude";
      :standard_name = "longitude";
      :units = "degree_east";
      :valid_range = -180.0f, 180.0f; // float

    double u_z_covar(time=320, plev=11, lat=73, lon=73);
      :name = "u_z_covar";
      :long_name = "Covariance of zonal wind component and geopotential height";
      :units = "m2/s";
      :_FillValue = 1.0E10; // double
      :cell_methods = "time: mean";

  // global attributes:
  :Conventions = "CF-1.7";
  :times_used = "From May 1958 through April 1968, once-daily (00 UTC) grids were used to compute the means.  From May 1968 through January 1975, twice-daily (00, 12 UTC) grids were used to compute the means.  From February 1975 on, four-times-daily (00, 06, 12, 18 UTC) grids were used to compute the means.";
}