Dataset {
    Float32 lat[lat = 360];
    Float32 lon[lon = 720];
    Float32 time[time = 1380];
    Grid {
     ARRAY:
        Float32 frs[time = 1380][lat = 360][lon = 720];
     MAPS:
        Float32 time[time = 1380];
        Float32 lat[lat = 360];
        Float32 lon[lon = 720];
    } frs;
} monthly;