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Quarterly Journal of the Royal Meteorological Society, ISSN 0035-9009, 10/2010, Volume 136, Issue 652, pp. 1868 - 1885
This article describes a new radiance‐assimilation scheme for microwave‐imager observations, which unifies the treatment of clear‐sky, cloudy and... 
cloud | rain | microwave imagers | Rain | Microwave imagers | Cloud | MODEL | 1D+4D-VAR ASSIMILATION | SCHEME | ECMWF | INITIAL TESTS | MICROWAVE RADIATIVE-TRANSFER | METEOROLOGY & ATMOSPHERIC SCIENCES | BRIGHTNESS TEMPERATURES | PRECIPITATION DATA | SSM/I | Retrieval | Assimilation | Parametrization | Error analysis | Clouds | Linearity | Mathematical models
Journal Article
Journal of Geophysical Research - Atmospheres, ISSN 0148-0227, 03/2009, Volume 114, Issue D6, pp. D06112 - n/a
Journal Article
IEEE Geoscience and Remote Sensing Letters, ISSN 1545-598X, 03/2012, Volume 9, Issue 2, pp. 252 - 256
Journal Article
ACTA PHYSICA SINICA, ISSN 1000-3290, 2012, Volume 61, Issue 24
The mainstream data assimilation system in operation will still employ four-dimensional variational data assimilation(4DVAR) method in a long time of future.... 
four-dimensional variational data assimilation | numerical weather prediction | PHYSICS, MULTIDISCIPLINARY | 4D-VAR | wavelet background error covariance model | atmospherical data assimilation | ECMWF OPERATIONAL IMPLEMENTATION | BACKGROUND ERROR COVARIANCE | INITIALIZATION | DIAGNOSTICS
Journal Article
Journal Article
Quarterly Journal of the Royal Meteorological Society, ISSN 0035-9009, 01/2007, Volume 133, Issue 623, pp. 347 - 362
The Met Office has developed a 4D‐Var data assimilation system, which was implemented in the global forecast system on 5 October 2004. This followed a... 
perturbation forecast | operational NWP | Operational NWP | Perturbation forecast | SYSTEM | IMPACT | FILTER | 4D-VAR | ECMWF OPERATIONAL IMPLEMENTATION | CENTERS | METEOROLOGY & ATMOSPHERIC SCIENCES
Journal Article
Quarterly Journal of the Royal Meteorological Society, ISSN 0035-9009, 10/2005, Volume 131, Issue 612, pp. 2961 - 3012
ERA‐40 is a re‐analysis of meteorological observations from September 1957 to August 2002 produced by the European Centre for Medium‐Range Weather Forecasts... 
Numerical weather prediction | Observing system | Data assimilation | SIGNIFICANT WAVE HEIGHT | 4-DIMENSIONAL VARIATIONAL ASSIMILATION | SOUTHERN-HEMISPHERE | MODEL | ECMWF OPERATIONAL IMPLEMENTATION | observing system | SCHEME | IMPACT | numerical weather prediction | OCEAN WIND | WATER-VAPOR | data assimilation | METEOROLOGY & ATMOSPHERIC SCIENCES | CLIMATE
Journal Article
Monthly Weather Review, ISSN 0027-0644, 12/2002, Volume 130, Issue 12, pp. 2905 - 2916
In this study, a global three-dimensional variational analysis system is formulated in model grid space. This formulation allows greater flexibility ( e. g.,... 
3D-VAR | SYSTEM | ECMWF IMPLEMENTATION | DATA ASSIMILATION | METEOROLOGY & ATMOSPHERIC SCIENCES
Journal Article
Advances in Atmospheric Sciences, ISSN 0256-1530, 09/2009, Volume 26, Issue 5, pp. 995 - 1004
Journal Article
Atmosphere-Ocean, ISSN 0705-5900, 06/1999, Volume 37, Issue 2, pp. 103 - 156
In this paper, the operational 3D variational data assimilation system (3D-var) of the Canadian Meteorological Centre (CMC) is described and its performance is... 
3D-VAR | SATELLITE SOUNDING RADIANCES | STATISTICAL-INTERPOLATION | NONLINEAR OPTIMAL ESTIMATION | OCEANOGRAPHY | ECMWF IMPLEMENTATION | FORMULATION | INVERSION | METEOROLOGY & ATMOSPHERIC SCIENCES | TOVS
Journal Article
Ocean Modelling, ISSN 1463-5003, 2008, Volume 24, Issue 1, pp. 46 - 64
An ensemble of 250 model setups covering the Mediterranean Sea is built by perturbing various parameters: the bathymetry, the initial conditions, atmospheric... 
Model error | Ensemble run | Mediterranean Sea | CIRCULATION | LIONS | LEVEL | KALMAN FILTER | FORECAST ERROR | ensemble run | BATHYMETRY | ECMWF | OCEANOGRAPHY | SEQUENTIAL DATA ASSIMILATION | DYNAMICS | model error | METEOROLOGY & ATMOSPHERIC SCIENCES
Journal Article
Quarterly Journal of the Royal Meteorological Society, ISSN 0035-9009, 01/2017, Volume 143, Issue 703, pp. 1136 - 1147
The current evolution of computer architectures towards increasing parallelism requires a corresponding evolution towards more parallel data assimilation... 
parallel algorithms | 4D‐Var | data assimilation | saddle‐point methods | 4D-Var | saddle-point methods | EVOLUTION | ENSEMBLE KALMAN FILTER | MODEL | ECMWF OPERATIONAL IMPLEMENTATION | METEOROLOGY & ATMOSPHERIC SCIENCES | Algorithms | Data assimilation
Journal Article
Monthly Weather Review, ISSN 0027-0644, 2013, Volume 141, Issue 7, pp. 2224 - 2244
Journal Article
Geoscientific Model Development, ISSN 1991-959X, 07/2014, Volume 7, Issue 4, pp. 1451 - 1465
An ensemble Kalman filter (EnKF) assimilation method is applied to the tracer transport using the same stratospheric transport model as in the four-dimensional... 
3D-VAR | GEOSCIENCES, MULTIDISCIPLINARY | VARIATIONAL DATA ASSIMILATION | ECMWF IMPLEMENTATION | OZONE | CHEMICAL-DATA ASSIMILATION | PART II | Models | Tracers (Biology) | Comparative analysis | Atmospheric ozone | Methods
Journal Article
by Yang, JB and Shao, M and Wang, QG and Yang, X
SOLA, ISSN 1349-6476, 08/2019, Volume 15, pp. 172 - 177
The relationships between the prediction of near-surface winds and the corresponding time of observations in eastern China were explored using the Advanced... 
SYSTEM | IMPACT | VARIATIONAL ASSIMILATION 3D-VAR | PART | ECMWF IMPLEMENTATION | MODEL | GSI | METEOROLOGY & ATMOSPHERIC SCIENCES
Journal Article