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

Session 10 Advanced Data Assimilation Methods Part 2

Wednesday, 25 January 2012: 1:30 PM-2:30 PM
Room 340 and 341 (New Orleans Convention Center )
Host: 16th Symposium on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans, and Land Surface (IOAS-AOLS)
Chair:  Miodrag Rancic, NOAA/NWS/NCEP
  1:45 PM
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
  2:00 PM
Fine Structure of 4D-Var (Four-Dimensional Variational data assimilation)
John M. Lewis, NOAA/NSSL, Norman, OK; and S. Lakshmivarahan

  2:15 PM
Derivative-Free Estimation of the Observation Error Covariance Matrix for Ensemble-Based Filters
Genta Ueno, The Institute of Statistical Mathematics, Tokyo, Japan

Effects of Local ETKF and Stochastic-Physics Scheme on Forecast Error Covariance