Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /latitude_time[33];
    Float64 /longitude[41];
    Float64 /longitude_time[41];
    Float64 /latitude[33];
    Float32 /depth[73];
    Float64 /depth_time[73];
} cell-Normal.nc4;