Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /latitude_time[52];
    Float64 /longitude[62];
    Float64 /longitude_time[62];
    Float64 /latitude[52];
    Float32 /depth[248];
    Float64 /depth_time[248];
} cell-Normal.nc4;