@inbook{81623, author = {ECMWF}, title = {IFS Documentation CY49R1 - Part I: Observations}, abstract = {

Chapter 1 Overview : The observation world
Chapter 2 Preparation of observations
Chapter 3 Observation operators
Chapter 4 Screening
Chapter 5 Deprecated areas
Chapter 6 Tables, codes and flags

}, year = {2024}, journal = {IFS Documentation CY49R1}, chapter = {1}, month = {11/2024}, publisher = {ECMWF}, url = { }, doi = {10.21957/fd16c61484}, }