subspace2_update

Stochastic iterative ensemble smoother (IES, i.e. EnRML) with subspace implementation.

subspace2_update

Ensemble subspace update, as described in Raanes, P. N., Stordal, A. S., & Evensen, G. (2019). Revising the stochastic iterative ensemble smoother. Nonlinear Processes in Geophysics, 26(3), 325–338. https://doi.org/10.5194/npg-26-325-2019

scale(data, scaling)

Scale the data perturbations by the data error standard deviation.

Args: data (np.ndarray): data perturbations scaling (np.ndarray): data error standard deviation

Returns: np.ndarray: scaled data perturbations