Dataset {
    Float32 lat[lat = 24];
    Float32 lon[lon = 20];
    Float32 time[time = 1019];
    Grid {
     ARRAY:
        Float32 prec[lat = 24][lon = 20][time = 1019];
     MAPS:
        Float32 lat[lat = 24];
        Float32 lon[lon = 20];
        Float32 time[time = 1019];
    } prec;
} prec;