Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /latitude_time[17];
    Float64 /longitude[23];
    Float64 /longitude_time[23];
    Float64 /latitude[17];
    Float32 /depth[7];
    Float64 /depth_time[7];
} cell-Normal.nc4;