ShimonMimounKalman_Filter_4D: Kalman Filter Python 4

filter 4dA four-dimension (4D) bidirectional dital filter, having a minimum number of delay elements, is presented. This filter, besides having a minimum number of delay elements, also has anWe present a four-dimensional ensemble Kalman filter (4D-LETKF) that approximately and efficiently solves a variational problem similar to that solved by 4D-VAR,