Dataset {
    String ISTA[ISTA = 1703];
    Float32 T[T = 1380];
    Grid {
     ARRAY:
        Float32 flow[ISTA = 1703][T = 1380];
     MAPS:
        String ISTA[ISTA = 1703];
        Float32 T[T = 1380];
    } flow;
} monthly;