Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /latitude_time[7];
    Float64 /longitude[7];
    Float64 /longitude_time[7];
    Float64 /latitude[7];
    Float32 /depth[5];
    Float64 /depth_time[5];
} cell-Normal.nc4;