Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[17];
    Float64 /latitude[18];
    Float64 /latitude_time[18];
    Float64 /longitude[19];
    Float32 /depth[17];
    Float64 /longitude_time[19];
} cell-Normal.nc4;