Dataset {
  Grid {
    ARRAY:
      Float32 prate[time = 30680][lat = 102][lon = 128];
    MAPS:
      Float64 time[time = 30680];
      Float64 lat[lat = 102];
      Float64 lon[lon = 128];
  } prate;
  Float64 time[time = 30680];
  Float64 lat[lat = 102];
  Float64 lon[lon = 128];
} gold/r40/prate;