Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[1659];
    Float64 /latitude[256];
    Float64 /latitude_time[256];
    Float64 /longitude[315];
    Float32 /depth[1659];
    Float64 /longitude_time[315];
} cell-Normal.nc4;