Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[2393];
    Float64 /latitude[242];
    Float64 /latitude_time[242];
    Float64 /longitude[278];
    Float32 /depth[2393];
    Float64 /longitude_time[278];
} cell-Normal.nc4;