Dataset {
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[315];
    Float64 /latitude[309];
    Float64 /latitude_time[309];
    Float64 /longitude[307];
    Float32 /depth[315];
    Float64 /longitude_time[307];
} cell-Normal.nc4;