Session 9A |
| | Data Assimilation: Error covariances and hybrid methods |
| | CoChair: Steven Rugg, Air Force Weather Agency, Offutt AFB, NE
Chair: Zhaoxia Pu, University of Utah, Salt Lake City, UT
|
| 10:30 AM | 9A.1 | Status report on Rapid Refresh development 
Stephen S. Weygandt, NOAA/ESRL/GSD, Boulder, CO; and T. G. Smirnova, M. Hu, J. M. Brown, D. Dévényi, S. G. Benjamin, W. R. Moninger, S. E. Peckham, G. A. Grell, K. J. Brundage, B. D. Jamison, C. W. Harrop, and J. B. Olson |
| 10:45 AM | 9A.2 | Application of anisotropic recursive filters to the generation of planetary scale background covariances 
Yoshiaki Sato, JMA visiting NOAA/NWS/NCEP/EMC, Camp Springs, MD; and R. J. Purser |
| 11:00 AM | 9A.3 | Impacts of different background error covariance matrices on 4DVAR data assimilation
Lei Zhang, Univ. of Utah and Lanzhou Univ., Salt Lake City, UT; and C. Qiu and Z. Pu |
| 11:15 AM | 9A.4 | A hybrid ensemble Kalman filter approach to data assimilation in a two-dimensional shallow water model
Lili Lei, Penn State University, University Park, PA; and D. R. Stauffer |
| 11:30 AM | 9A.5 | A Hybrid Data Assimilation System (WRF-VAR and Ensemble Transform Kalman Filter) Based Retrospective Tests with Real Observations
Meral Demirtas, NCAR, Boulder, CO; and D. Barker, Y. Chen, J. Hacker, X. Y. Huang, C. Snyder, and X. Wang |
| 11:45 AM | 9A.6 | A comparison of the hybrid and EnSRF analysis schemes in the presence of model errors due to unresolved scales
Xuguang Wang, Univ. of Oklahoma, Norman, OK; and T. Hamill, J. Whitaker, and C. H. Bishop |