A Brief Overview of NCEP Short-Range Ensemble Forecast (SREF) System ... ( considering 3hr earlier in initialization, less perfect ICs used, courser resolution ...
... relationship between conjugate gradient and the Lanczos algorithms for solving ... Suppose we have analysis data from different centers, such as NCEP, ECMWF, UKM, ...
Tests of a Prototype Ensemble Data Assimilation System at NCEP ... a variant of 3D-Var that allows some anisotropy of background-error covariances. ...