𝔖 Bobbio Scriptorium
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Assessing the statistical characteristics of the mean absolute error or forecasting

✍ Scribed by Lap-Ming Wun; Wen Lea Pearn


Book ID
119138621
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
225 KB
Volume
7
Category
Article
ISSN
0169-2070

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## Abstract This article reviews a range of leading methods to model the background error covariance matrix (the **B**‐matrix) in modern variational data assimilation systems. Owing partly to its very large rank, the **B**‐matrix is impossible to use in an explicit fashion in an operational setting