Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[1268];
    Float64 /latitude[246];
    Float64 /latitude_time[246];
    Float64 /longitude[275];
    Float32 /depth[1268];
    Float64 /longitude_time[275];
} cell-Normal.nc4;