Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /latitude_time[291];
    Float64 /longitude[291];
    Float64 /longitude_time[291];
    Float64 /latitude[291];
    Float32 /depth[296];
    Float64 /depth_time[296];
} cell-Normal.nc4;