Dataset {
    Int32 /DeadReckonUsingMultipleVelocitySources/velocity_source[196321];
    Float64 /DeadReckonUsingMultipleVelocitySources/velocity_source_time[196321];
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float32 /depth[50];
    Float64 /depth_time[50];
} hotspot-Normal.nc4;