Documents Xuguang Wang University of Oklahoma, Norman, OK [email protected] Ting Lei, Govindan Kutty (OU)

Preliminary test results with hybrid GSI-ensemble Kalaman filter for GFS Ensemble 4DVAR and observation impact study with the GSI-based hybrid ensemble-variational data assimilation…

Documents GSI Hybrid EnKF-3DVAR Upgrade

GSI Hybrid EnKF-3DVAR Upgrade Components GPS RO bending angle rather than refractivity Inclusion of compressibility factors for atmosphere Retune SBUV ob errors â fix bug…