ShimonMimounKalman_Filter_4D: Kalman Filter Python 4

filter 4dWe present a four-dimensional ensemble Kalman filter (4D-LETKF) that approximately and efficiently solves a variational problem similar to that solved by 4D-VAR,In this paper, we propose an efficient and practical implementation of a four-dimensional variational ensemble Kalman filter 4D-EnKF via a modified Cholesky decomposition. The main