92nd American Meteorological Society Annual Meeting (January 22-26, 2012)

Session 10: Advanced Data Assimilation Methods Part 2


Chair:  Miodrag Rancic, NOAA/NWS/NCEP
Papers:
 
Hybrid Variational-Ensemble Data Assimilation for the NCEP Global Forecast System Model: Recent Development and Results for the Ensemble 4DVAR
Xuguang Wang, School of Meteorology, Norman, OK; and T. Lei, J. Whitaker, R. Treadon, D. Kleist, and J. Derber

 
Fine Structure of 4D-Var (Four-Dimensional Variational data assimilation)
John M. Lewis, NOAA/NSSL, Norman, OK; and S. Lakshmivarahan

 
Derivative-Free Estimation of the Observation Error Covariance Matrix for Ensemble-Based Filters
Genta Ueno, The Institute of Statistical Mathematics, Tokyo, Japan