Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[2614];
    Float64 /latitude[129];
    Float64 /latitude_time[129];
    Float64 /longitude[159];
    Float32 /depth[2614];
    Float64 /longitude_time[159];
} cell-Normal.nc4;