Dataset {
    Float64 /longitude_time[3];
    Float32 /depth[6];
    Float64 /depth_time[6];
    Float64 /time_fix[1];
    String /trajectory_id[15];
    Float32 /trajectoryNameLen[15];
    Float64 /latitude_fix[1];
    Float64 /longitude[3];
    Float64 /latitude[3];
    Float64 /latitude_fix_time[1];
    Float64 /longitude_fix[1];
    Float32 /NavChart/height_above_sea_floor[1660];
    Float64 /NavChart/height_above_sea_floor_time[1660];
    Float64 /longitude_fix_time[1];
    Float64 /latitude_time[3];
    Float64 /time_fix_time[1];
    Int32 /DeadReckonUsingMultipleVelocitySources/velocity_source[4476];
    Float64 /DeadReckonUsingMultipleVelocitySources/velocity_source_time[4476];
} hotspot-Normal.nc4;