Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[2187];
    Float64 /latitude[3094];
    Float64 /latitude_time[3094];
    Float64 /longitude[2891];
    Float32 /depth[2187];
    Float64 /longitude_time[2891];
} cell-Normal.nc4;