Developments in 4D-Var and Kalman Filtering - European Centre

filter4dThis option improves rendering speed (or, in other words, reduces noise and improves antialiasing).It is equivalent to the Tent filter with width 2.0 in the sense that theyAbstract. The four-dimensional local ensemble transform Kalman filter (4D-LETKF) data assimilation system for the whole neutral atmosphere is updated to better represent