Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[268];
    Float64 /latitude[270];
    Float64 /latitude_time[270];
    Float64 /longitude[277];
    Float32 /depth[268];
    Float64 /longitude_time[277];
} cell-Normal.nc4;