def get_default_params_bps_perp():
    """Return a tuple containing the default velocity perturbation parameters
    given in :cite:`BPS2006` for the perpendicular component."""
    return (5.76, 0.31, -2.72)
Return a tuple containing the default velocity perturbation parameters
given in :cite:`BPS2006` for the perpendicular component.
pysteps/noise/motion.py