netcdf z04/lnd/clm2/rawdata/mksrf_irrig.nc {
  dimensions:
    lon = 720;
    lat = 360;
  variables:
    float LON(lon=720);
      :long_name = "lon";
      :units = "degrees east";

    float LAT(lat=360);
      :long_name = "lat";
      :units = "degrees north";

    float LONGXY(lat=360, lon=720);
      :long_name = "longitude-2d";
      :units = "degrees east";

    float LATIXY(lat=360, lon=720);
      :long_name = "latitude-2d";
      :units = "degrees north";

    float EDGEN;
      :long_name = "northern edge of surface grid";
      :units = "degrees north";

    float EDGEE;
      :long_name = "eastern edge of surface grid";
      :units = "degrees east";

    float EDGES;
      :long_name = "southern edge of surface grid";
      :units = "degrees north";

    float EDGEW;
      :long_name = "western edge of surface grid";
      :units = "degrees east";

    float PCT_IRRIG(lat=360, lon=720);
      :long_name = "percent irrigated";
      :units = "unitless";

    float LANDMASK(lat=360, lon=720);
      :long_name = "land mask";
      :units = "unitless";

  // global attributes:
  :data_type = "olson_irrig_data";
}