TY - ECHAP
AU - ECMWF
AB - <p>
  Chapter 1 Observation operators<br>Chapter 2 Observation processing<br>Chapter 3 Observation screening<br>References</p>

BT - IFS Documentation CY40R1
C1 - Software development
DA - 2014
DO - 10.21957/15dz0m2t
LA - eng
M1 - 1
N1 - <p>
  Operational implementation 22 November 2013</p>

N2 - <p>
  Chapter 1 Observation operators<br>Chapter 2 Observation processing<br>Chapter 3 Observation screening<br>References</p>

PB - ECMWF
PY - 2014
T2 - IFS Documentation CY40R1
T3 - IFS Documentation
TI - IFS Documentation CY40R1 - Part I: Observation Processing
UR - https://www.ecmwf.int/node/9201
ER -