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

BT - IFS Documentation CY50R1
DA - 06/2026
DO - 10.21957/947845be20
N2 - <p class="MsoNoSpacing">Chapter 1 Overview: the observation world<br />
Chapter 2 Preparation of observations<br />
Chapter 3 Observation operators&nbsp;<br />
Chapter 4 Screening&nbsp;<br />
Chapter 5 Deprecated areas&nbsp;<br />
Chapter 6 Tables, codes and flags</p>

PB - ECMWF
PY - 2026
SE - 1
T2 - IFS Documentation CY50R1
T3 - IFS Documentation
TI - IFS Documentation CY50R1 - Part 1: Observations
UR - &nbsp;
ER -