On the Theoretical Equivalence of Differently Proposed Ensemble 3DVAR Hybrid Analysis Schemes

By Xuguang Wang, C. Snyder, Thomas M. Hamill. 2007

172 citations recorded by the source corpus.

Subfields: Atmospheric Science, Environmental Engineering, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/070de5e8e29e0995e529ed6964edea40d39afe9e

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Citations in the corpus

B‐preconditioned minimization algorithms for variational data assimilation with the dual formulation (2014, background): “This situation can arise with general covariance models constructed from spectral or grid-point filters (Fisher, 2003; Purser et al., 2003; Weaver and Mirouze, 2013) and with hybrid ensemble-variational B formulations (Buehner, 2005; Wang et al., 2007, 2008).”
Expanding the validity of the ensemble Kalman filter without the intrinsic need for inflation (2015, background): “(44) to (45), then along the lines of Wang et al. (2007b).”
Operational implementation of a hybrid ensemble/4D‐Var global data assimilation system at the Met Office (2013, unknown): “(9) is given by Wang et al. (2007).”
The evolution of the ECMWF hybrid data assimilation system (2016, methodology): “…2004; Wang et al., 2007b) or, more commonly, by augmentation of the variational control variable (‘extended control variable’ method; Barker, 1999; Lorenc, 2003; Buehner, 2005; Wang et al., 2007a, 2008; Buehner et al., 2010a, 2010b; Bishop and Hodyss, 2011; Clayton et al., 2013; Wang et al., 2013).”
Incorporating Ensemble Covariance in the Gridpoint Statistical Interpolation Variational Minimization: A Mathematical Framework (2010, methodology): “Studies using simple models and full NWP models have demonstrated the potential of the hybrid method as compared with a standalone variational method (VAR; e.g., Hamill and Snyder 2000; Wang et al. 2007b, 2008a,b, 2009; Buehner et al. 2010a,b).”
A review of operational methods of variational and ensemble‐variational data assimilation (2017, background): “The two known forms are labelled ‘B05’ and ‘L03’ after Buehner (2005) and Lorenc (2003) respectively (as is done in Wang et al., 2007b).”
Adaptive Ensemble Covariance Localization in Ensemble 4D-VAR State Estimation (2011, methodology): “There is a growing in-terestin the use of localized ensemble covariances in three-dimensional variational data assimilation (3D-VAR) and 4D-VAR schemes evident in papers by Lorenc (2003), Buehner (2005), Buehner et al. (2010a,b), Wang et al. (2007), Liu et al. (2009), and others.”