IFS Documentation CY25R1 - Part II: Data Assimilation

Chapter 1 ‘Incremental formulation of 3D/4D variational assimilation—an overview
Chapter 2 ‘3D variational assimilation
Chapter 3 ‘4D variational assimilation
Chapter 4 ‘Background term
Chapter 5 ‘Conventional observational constraints
Chapter 6 ‘Satellite observational constraints
Chapter 7 ‘Background, analysis and forecast errors
Chapter 8 ‘Gravity-wave control
Chapter 9 ‘Data partitioning (OBSORT)
Chapter 10 ‘Observation screening
Chapter 11 ‘Analysis of snow
Chapter 12 ‘Land surface analysis
Chapter 13 ‘Sea surface temperature and sea-ice analysis
Chapter 14 ‘Reduced-rank Kalman filter
REFERENCES

Operational implementation 9 April 2002