Dataset {
    Float32 I[I = 1];
    Grid {
     ARRAY:
        Float32 lat[I = 1];
     MAPS:
        Float32 I[I = 1];
    } lat;
    Grid {
     ARRAY:
        Float32 lon[I = 1];
     MAPS:
        Float32 I[I = 1];
    } lon;
    Byte Name[I = 1][40];
} Volcano;