Relationships among Four-Dimensional Hybrid Ensemble–Variational Data Assimilation Algorithms with Full and Approximate Ensemble Covariance Localization
نویسندگان
چکیده
منابع مشابه
Relationships among Four-Dimensional Hybrid Ensemble–Variational Data Assimilation Algorithms with Full and Approximate Ensemble Covariance Localization
Ensemble–variational data assimilation algorithms that can incorporate the time dimension (fourdimensional or 4D) and combine static and ensemble-derived background error covariances (hybrid) are formulated in general forms based on the extended control variable and the observation-space-perturbation approaches. The properties and relationships of these algorithms and their approximated formula...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 2016
ISSN: 0027-0644,1520-0493
DOI: 10.1175/mwr-d-15-0203.1