pysteps.noise.motion.generate_bps¶

pysteps.noise.motion.generate_bps(perturbator, t)¶

Generate a motion perturbation field by using the method described in [BPS06].

Parameters:	perturbator : dict A dictionary returned by initialize_motion_perturbations_bps. t : float Lead time for the perturbation field (minutes).
Returns:	out : ndarray Array of shape (2,m,n) containing the x- and y-components of the motion vector perturbations, where m and n are determined from the perturbator.