TY - ECHAP
AU - ECMWF
AB - <p>
  Chapter 1 Overview: the observation world<br>Chapter 2 Preparation of observations<br>Chapter 3 Observation operators<br>Chapter 4 Screening<br>Chapter 5 Deprecated areas<br>Chapter 6 Tables, codes and flags<br>References</p>

BT - IFS Documentation CY45R1
DA - 2018
DO - 10.21957/fol250ke
LA - eng
M1 - 1
N2 - <p>
  Chapter 1 Overview: the observation world<br>Chapter 2 Preparation of observations<br>Chapter 3 Observation operators<br>Chapter 4 Screening<br>Chapter 5 Deprecated areas<br>Chapter 6 Tables, codes and flags<br>References</p>

PB - ECMWF
PY - 2018
T2 - IFS Documentation CY45R1
T3 - IFS Documentation
TI - IFS Documentation CY45R1 - Part I : Observations
UR - https://www.ecmwf.int/node/18711
ER -