Dataset {
    Float32 g1_lat1[g1_dim1 = 2][g1_dim2 = 3];
    Float32 g1_lon1[g1_dim1 = 2][g1_dim2 = 3];
    Float32 g1_lat2[g1_dim1 = 2][g1_dim2 = 3];
    Float32 g1_lon2[g1_dim1 = 2][g1_dim2 = 3];
    Float32 g1_pres[g1_dim1 = 2][g1_dim2 = 3];
    Float32 g1_temp[g1_dim1 = 2][g1_dim2 = 3];
    Int32 g1_dim1[g1_dim1 = 2];
    Int32 g1_dim2[g1_dim2 = 3];
} nc4_group_mlls_1g.h5;