Dataset {
    Float32 g1_lat1[lat = 2];
    Float32 g1_lon1[lat = 2];
    Float32 g1_pres2[lat = 2][zdim = 3];
    Float32 pres1[lat = 2][zdim = 3];
    Float32 lat[lat = 2];
    Int32 zdim[zdim = 3];
} nc4_group_mlls_za.h5;