@inbook{81269,
  author = {ECMWF},
  title = {IFS Documentation CY47R3 - Part II: Data assimilation},
  abstract = {<p>
  <span>Chapter 1 Overview</span><br /><span>Chapter 2 4D variational assimilation<br />Chapter 3 Tangent-linear physics<br />Chapter 4 Background term<br />Chapter 5 Observation-related processing (</span><span>J</span><span>o</span><span>)<br />Chapter 6 Background, analysis and forecast errors<br />Chapter 7 Gravity-wave control<br />Chapter 8 Diagnostics<br />Chapter 9 Land-surface analysis<br />Chapter 10 Analysis of sea-ice concentration and SST<br />Chapter 11 Data flow</span></p>
},
  year = {2021},
  journal = {IFS Documentation CY47R3},
  number = {2},
  month = {09/2021},
  publisher = {ECMWF},
  url = {https://www.ecmwf.int/node/20196},
  doi = {10.21957/t445u8kna},
  language = {eng},
}