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</p>

BT - IFS Documentation CY47R1
DA - 2020
DO - 10.21957/ftq7iq93j
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</p>

PB - ECMWF
PY - 2020
T2 - IFS Documentation CY47R1
T3 - IFS Documentation
TI - IFS Documentation CY47R1 - Part I: Observations
UR - https://www.ecmwf.int/node/19745
ER -