Dataset {
  Grid {
    ARRAY:
      Float32 p[time = 315575][lat = 21][lon = 33];
    MAPS:
      Float64 time[time = 315575];
      Float64 lat[lat = 21];
      Float64 lon[lon = 33];
  } p;
  Float64 time[time = 315575];
  Float64 lat[lat = 21];
  Float64 lon[lon = 33];
} USprecip;