def get_default_params_bps_par():
    """Return a tuple containing the default velocity perturbation parameters
    given in :cite:`BPS2006` for the parallel component."""
    return (10.88, 0.23, -7.68)
Return a tuple containing the default velocity perturbation parameters
given in :cite:`BPS2006` for the parallel component.
pysteps/noise/motion.py