@inbook{74342, author = {ECMWF}, title = {IFS Documentation CY33R1 - Part II: Data Assimilation}, abstract = {
Chapter 1 Overview
Chapter 2 4D Variational Assimilation
Chapter 3 3D variational assimilation (with the first-guess at appropriate time)
Chapter 4 Background term
Chapter 5 Observation operators and the observation cost function (Jo)
Chapter 6 Background, analysis and forecast errors
Chapter 7 Gravity-wave control
Chapter 8 Diagnostics
Chapter 9 Observation processing
Chapter 10 Observation screening
Chapter 11 Analysis of snow
Chapter 12 Land-surface analysis
Chapter 13 Analysis of sea-ice concentration and sea surface temperature
Chapter 14 Data Flow' References
Operational implementation 3 June 2008
}, language = {eng}, }