A review of operational methods of variational and ensemble‐variational data assimilation
RN Bannister - Quarterly Journal of the Royal Meteorological …, 2017 - Wiley Online Library
Variational and ensemble methods have been developed separately by various research
and development groups and each brings its own benefits to data assimilation. In the last …
and development groups and each brings its own benefits to data assimilation. In the last …
Data assimilation in atmospheric chemistry models: current status and future prospects for coupled chemistry meteorology models
Data assimilation is used in atmospheric chemistry models to improve air quality forecasts,
construct re-analyses of three-dimensional chemical (including aerosol) concentrations and …
construct re-analyses of three-dimensional chemical (including aerosol) concentrations and …
[HTML][HTML] GSI 3DVar-based ensemble–variational hybrid data assimilation for NCEP Global Forecast System: Single-resolution experiments
An ensemble Kalman filter–variational hybrid data assimilation system based on the
gridpoint statistical interpolation (GSI) three-dimensional variational data assimilation …
gridpoint statistical interpolation (GSI) three-dimensional variational data assimilation …
[HTML][HTML] A hybrid ETKF–3DVAR data assimilation scheme for the WRF model. Part I: Observing system simulation experiment
Barker, DM, W. Huang, YR. Guo, and A. Bourgeois, 2003: A three-dimensional variational
(3DVAR) data assimilation system for use with MM5. NCAR Tech. Note NCAR/TN-453+ …
(3DVAR) data assimilation system for use with MM5. NCAR Tech. Note NCAR/TN-453+ …
The evolution of the ECMWF hybrid data assimilation system
M Bonavita, E Hólm, L Isaksen… - Quarterly Journal of the …, 2016 - Wiley Online Library
The trend towards using flow‐dependent, ensemble‐based estimates of background‐error
covariances has been one of the main themes of atmospheric data assimilation research …
covariances has been one of the main themes of atmospheric data assimilation research …
Real‐time groundwater flow modeling with the ensemble Kalman filter: Joint estimation of states and parameters and the filter inbreeding problem
HJ Hendricks Franssen… - Water resources …, 2008 - Wiley Online Library
Real‐time groundwater flow modeling with filter methods is interesting for dynamical
groundwater flow systems, for which measurement data in real‐time are available. The …
groundwater flow systems, for which measurement data in real‐time are available. The …
[HTML][HTML] An OSSE-based evaluation of hybrid variational–ensemble data assimilation for the NCEP GFS. Part I: System description and 3D-hybrid results
An OSSE-Based Evaluation of Hybrid Variational–Ensemble Data Assimilation for the NCEP
GFS. Part I: System Description and 3D-Hybrid Results in: Monthly Weather Review Volume …
GFS. Part I: System Description and 3D-Hybrid Results in: Monthly Weather Review Volume …
[HTML][HTML] A hybrid ETKF–3DVAR data assimilation scheme for the WRF model. Part II: Real observation experiments
Barker, DM, W. Huang, YR. Guo, and A. Bourgeois, 2003: A three-dimensional variational
(3DVAR) data assimilation system for use with MM5. NCAR Tech. Note NCAR/TN-453+ …
(3DVAR) data assimilation system for use with MM5. NCAR Tech. Note NCAR/TN-453+ …
[HTML][HTML] On the theoretical equivalence of differently proposed ensemble–3DVAR hybrid analysis schemes
Hybrid ensemble–three-dimensional variational analysis schemes incorporate flow-
dependent, ensemble-estimated background-error covariances into the three-dimensional …
dependent, ensemble-estimated background-error covariances into the three-dimensional …
[HTML][HTML] GSI-based four-dimensional ensemble–variational (4DEnsVar) data assimilation: Formulation and single-resolution experiments with real data for NCEP …
GSI-Based Four-Dimensional Ensemble–Variational (4DEnsVar) Data Assimilation: Formulation
and Single-Resolution Experiments with Real Data for NCEP Global Forecast System in …
and Single-Resolution Experiments with Real Data for NCEP Global Forecast System in …