On the consistency of the local ensemble square root Kalman filter perturbation update

We examine the perturbation update step of the ensemble Kalman filters which rely on covariance localisation, and hence have the ability to assimilate non-local observations in geophysical models. We show that the updated perturbations of these ensemble filters are not to be identified with the main...

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Bibliographic Details
Main Authors: Marc Bocquet, Alban Farchi
Format: Article
Language:English
Published: Taylor & Francis Group 2019-01-01
Series:Tellus: Series A, Dynamic Meteorology and Oceanography
Subjects:
Online Access:http://dx.doi.org/10.1080/16000870.2019.1613142