'Ensemble perturbations' diaporamas de présentation

Nonlinear Local Lyapunov Vectors and Their Applications to Ensemble Predictions

Nonlinear Local Lyapunov Vectors and Their Applications to Ensemble Predictions Ruiqiang Ding, Jianping Li, Jie Feng, and Zhaolu Hou LASG, IAP, Chinese Academy of Sciences GCESS, Beijing Normal University November 23, 2017. 1. 2. 3. 5. 4. Outline. Limitations of linear Lyapunov vector.

594 views • 59 slides

An OSSE-based evaluation of 4D- Ensemble-Var (and hybrid variants) for the NCEP GFS

An OSSE-based evaluation of 4D- Ensemble-Var (and hybrid variants) for the NCEP GFS. 1 NOAA/NWS/NCEP/EMC 2 Univ. of Maryland-College Park, Dept. of Atmos. & Oceanic Science. Daryl Kleist 1,2 and Kayo Ide 2. w ith acknowledgements to Dave Parrish, Jeff Whitaker, John Derber , Russ Treadon.

748 views • 35 slides

An OSSE-based evaluation of 4D- Ensemble-Var (and hybrid variants) for the NCEP GFS

An OSSE-based evaluation of 4D- Ensemble-Var (and hybrid variants) for the NCEP GFS. 1 NOAA/NWS/NCEP/EMC 2 Univ. of Maryland-College Park, Dept. of Atmos. & Oceanic Science. Daryl Kleist 1,2 and Kayo Ide 2. w ith acknowledgements to Dave Parrish, Jeff Whitaker, John Derber , Russ Treadon.

482 views • 35 slides

GSI/ETKF Regional Hybrid Data Assimilation with MMM Hybrid Testbed

385 views • 24 slides

GSI Hybrid EnKF-3DVAR Upgrade

386 views • 23 slides

Hybrid Variational/Ensemble Data Assimilation

378 views • 20 slides

Cv 5 option ? var_scaling * ? tuning factor of background error covariance for control variable

Cv 5 option ? var_scaling * ? tuning factor of background error covariance for control variable be_sub % val (:,:) = var_scaling * be_sub % val (:,:) len_scaling * ? tuning factor of scale-length s(1:mz) = len_scaling * s(1:mz) Cv 3 option ?

260 views • 9 slides