Dataset {
    Int32 /DeadReckonUsingMultipleVelocitySources/velocity_source[10521];
    Float64 /DeadReckonUsingMultipleVelocitySources/velocity_source_time[10521];
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float32 /depth[11];
    Float64 /depth_time[11];
} hotspot-Normal.nc4;